Interim report
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Contents Key figures 3 Financial statement information 17 Full-year outlook for 2026 4 Income statement 18 CEO's comment 5 Statement of other comprehensive income 18 Tieto's quarter in brief 6 Statement of financial position 19 IT market development 7 Statement of changes in shareholders' equity 20 Company strategy 7 Statement of cash flows 21 Financial performance in July–September 8 Notes to the financial statements 22 Financial performance in January– September 13 Segment information 23 Financial position at the end of the period 14 Discontinued operations 27 Order backlog 14 Acquisitions and divestments 28 Personnel 14 Financial assets and liabilities 30 Performance in 2026 14 Number of shares 31 Management 15 Shares 15 Significant risks and uncertainties 15 Alternative performance measures 31 Events after the period 16 Quarterly figures 34 Financial calendar 16 Quarterly figures by segments 36 2 | Tieto Corporation Interim Report 3/2026
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Key figures in the third quarter Revenue, EUR million 390 (454) Organic growth -11% (4%) Adjusted operating profit (EBITA), EUR million 70 / 18.0% (88 / 19.3%) Cash flow from operating activities, EUR million 3 (45)1) Net debt/EBITDA 1.3 (2.4) Order backlog (year-on-year) -2% Organic growth adjusted for currency effects, acquisitions and divestments In operating profit, adjustment items include restructuring costs, capital gains/losses, impairment charges and other items affecting comparability Operating profit (EBITA) is profit before interests, taxes, amortization of acquisition-related intangible assets, goodwill and other intangible asset impairment Order backlog is adjusted for the impact of exchange rates, acquisitions and divestments 1) Comparative figure includes cash flow for the divested Tech Services business, Bekk Consulting, Edlevo and HR & Payroll as well as the contribution from the court ruling in Tieto Banktech. 3 | Tieto Corporation Interim Report 3/2026
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Strong profitability – growth investments accelerating • Organic growth -11%, including a 7 pp. negative impact from known headwinds • Strong adjusted EBITA margin of 18.0%, reflecting solid execution of cost optimization – continued cost discipline • Strategy execution progressing as planned – decisive transformation and increased growth investments building the foundation for future growth •• Agreement to divest Tieto Indtech’s Pulp, Paper and Fibre software business announced • Full-year growth and profitability outlook for 2026 updated on 26 October • Juuso Pajunen appointed as Chief Financial Officer, joining the company in January 2027 7–9/2026 7–9/2025 1–9/2026 1–9/2025 Revenue, EUR million 389.6 454.2 1 264.5 1 388.1 Organic growth1), % -11 4 -6 -1 Acquisitions and divestments, % -6 0 -5 0 Foreign exchange rates, % 2 0 2 0 Reported growth, % -14 4 -9 -1 Organic growth adjusted for working days4), % -11 4 -7 -1 Operating profit (EBIT), EUR million 56.5 56.5 247.7 16.4 Operating margin (EBIT), % 14.5 12.4 19.6 1.2 Adjusted2) operating profit (EBITA3)), EUR million 70.2 87.8 199.6 181.3 Adjusted2) operating margin (EBITA3)), % 18.0 19.3 15.8 13.1 Net profit/loss for the period, EUR million 40.7 34.9 186.0 -14.5 EPS, EUR 0.37 0.29 1.62 -0.12 Cash flow from operating activities, EUR million5) 2.8 44.7 108.3 193.4 Capital expenditure, EUR million 14.3 12.7 45.4 43.1 Order backlog 2 009 2 048 2 009 2 048 Interest-bearing net debt, EUR million 490.6 551.9 490.6 551.9 Personnel on 30 September 12 599 14 693 12 599 14 693 Full-year outlook for 2026 updated on 26 October Tieto expects its organic1) growth to be in the range of -6% to -5% (revenue in 2025: EUR 1 852.3 million). The company estimates its full-year adjusted operating margin2) (adjusted EBITA3)) to be 15.5–16.0% (13.8% in 2025). 1) Adjusted for currency effects, acquisitions and divestments 2) Adjustment items include restructuring costs, capital gains/losses, impairment charges and other items affecting comparability. For reconciliation, see Alternative performance measures. 3) Profit before interests, taxes, amortization of acquisition-related intangible assets, goodwill and other intangible asset impairment 4) Company estimate 5) Comparative information includes cash flow from divestments as well as the contribution from the court ruling in Tieto Banktech 4 | Tieto Corporation Interim Report 3/2026
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CEO comment by Endre Rangnes Building a stronger foundation for growth "Our third-quarter performance reflects Tieto's ongoing year of transition. We have been carrying out far-reaching changes across the company, strengthening execution around our strategic priorities and building the foundations for sustainable growth. At the same time, market conditions have been more challenging than anticipated, and rapid changes in customer needs have required a broader transformation of Tech Consulting. In the quarter, their combined effect was visible in softer revenue development, while our actions to strengthen the company continued to support strong profitability. Our organic growth was -11% in the third quarter. This included a negative impact of 7 percentage points from known headwinds: a year-on-year impact of 5 percentage points from a court ruling in the third quarter of 2025 and 2 percentage points from legacy contracts. In parts of the consulting market, soft demand continued as geopolitical uncertainty and rapid developments in AI have led some customers to reassess the timing and scope of technology projects. In Tech Consulting, we have implemented targeted competence and capacity adjustments to address the shift in market demand as part of its transformation. Lower volumes in parts of Tieto Banktech and Indtech also weighed on growth. In light of the weaker-than-anticipated organic growth in the third quarter, we are lowering our full-year organic growth outlook. At the same time, our focused execution is delivering tangible results. Adjusted EBITA margin reached 18% in the third quarter. Reflecting this strong performance, we have raised our full-year adjusted EBITA margin outlook. By the end of September, our cost optimization programme had delivered EUR 125 million in annualized savings, close to the EUR 130 million target for year- end. This demonstrates the impact of our cost actions and our continued discipline in building a more competitive cost base. Alongside this work, we are simplifying our portfolio and sharpening our focus on scalable businesses. The announced divestment of Tieto Indtech’s Pulp, Paper and Fibre software business is the latest step in this process. In Tech Consulting, we have reshaped the business for the next phase. We have implemented a new operating model with clear ownership and accountability across geographies, and strengthened our customer focus and service mix. This has involved reducing capacity by around 1 000 people while upskilling around 5 000 colleagues to align our capabilities with changing customer needs. We have also expanded our sales force, harmonized sales processes and incentives, and improved pipeline management. With these foundations in place, we are selectively rebuilding capacity in areas of growing demand. We plan to recruit up to 1 000 consultants with AI and data capabilities during the next 12 months. Across our software businesses, a solid order backlog, particularly in Banktech, is expected to translate increasingly into revenue in the coming quarters. The legacy contract headwinds will be fully behind us by the end of 2026, and our selective expansion in Europe is progressing, supported by a strong pipeline and recent wins. At the same time, AI is opening new opportunities as customers look to embed new technologies in business- critical software and workflows. Our deep domain expertise and mission- critical software, combined with our capabilities in AI, cloud and data, position us well to help customers capture this potential. Our recognition as a Microsoft Frontier Partner and Premier Partner status in Snowflake’s AI Data Cloud Services Partner Program create new opportunities for joint go-to- market activities for the benefit of customers. As our growth initiatives gain traction, we expect organic growth to improve gradually from the current levels. With the major elements of our transformation in place and our growth initiatives progressing across the Group, we believe Tieto will deliver solid organic growth in 2027. Our work during this transition year is creating a stronger foundation for that next phase, and we remain confident in our long-term ambitions." 5 | Tieto Corporation Interim Report 3/2026
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Tieto's quarter in brief Organic growth -11%, including a 7 pp. negative impact from known headwinds Revenue declined organically by 11%, partly due to the year-on-year impact of a court ruling in Tieto Banktech in the third quarter of 2025 and the phase- out of legacy contracts, which altogether had a negative impact of 7 pp. at the Group level. Furthermore, Tieto Tech Consulting saw weak development with organic growth of -11%, driven by soft demand in parts of the consulting market. Tech Consulting implemented targeted competence and capacity adjustments to address the shift in market demand. In Tieto Banktech, growth was -18%, while underlying revenue was at the previous year's level. In Tieto Caretech, growth remained relatively stable at -1%, with underlying growth of 4% when eliminating the phase-out of legacy contracts. In Tieto Indtech, growth was impacted by volume-based business. Strong adjusted EBITA margin of 18.0%, reflecting solid execution of cost optimization – continued cost discipline Adjusted operating margin was 18.0% (19.3). The comparison figure includes a court ruling effect, which had a positive contribution of 4 pp. to the margin in 2025. Strong profitability was primarily driven by solid execution of cost optimization and further supported by high capacity utilization in Tieto Tech Consulting. Tieto's cost optimization programme with targeted run-rate savings of EUR 130 million is substantially complete, with a EUR 125 million run-rate having materialized by the end of the third quarter. The comparative period included a negative IFRS 5-related cost impact of 0.9 percentage points. Strategy execution progressing as planned – decisive transformation and increased growth investments building the foundation for future growth In the third quarter, Tieto continued its strategy execution with a focus on sales performance and ensuring AI capabilities. The company’s sales performance programme includes recruitment of sales talent as well as improved pipeline management and incentive models. The simplification of the company’s portfolio continued with the announced divestment of Tieto Indtech’s Pulp, Paper and Fibre software business as the latest milestone. Furthermore, the drive for European expansion in software businesses has progressed as planned with the recent wins in the DACH area demonstrating the competitiveness of Tieto’s software-based solutions. In software businesses, the earlier communicated headwinds will cease to impact growth by the end of 2026. The decisive transformation of the company coupled with accelerated growth investments and a strong sales focus are building the foundation for future growth. In Tieto Tech Consulting, the need for new competences coupled with a high utilization rate is calling for new hires. Recruitments will include up to 1 000 consultants during the next 12 months with a focus on AI and data. A solid software order backlog, particularly in Tieto Banktech, is expected to support growth in the coming quarters and, furthermore, selective expansion in Europe is progressing, driven by a strengthening pipeline and recent wins. As the year of transition is coming to its end and growth investments will be accelerated, Tieto is anticipated to turn to solid organic growth in 2027. Highlights of the quarter A new multi-year global software engineering partnership with Danish technology company GN Tieto Tech Consulting expanded its long-standing collaboration with Danish technology company GN, entering into a new multi-year global software engineering partnership. Read more Handelsbanken Norway strengthens its asset management offering with Tieto Banktech’s solutions Handelsbanken Norway has entered into an agreement with Tieto Banktech to provide a portal for asset management to its customers. As key to this agreement are new, advanced investment tools that give customers a comprehensive online overview of their investments on a single platform, featuring new, user-friendly interfaces. Read more University Medical Center Mainz selects Lifecare to modernize its clinical IT foundation University Medical Center Mainz selected Tieto Caretech, x-tention and Better to migrate legacy clinical data into a shared, vendor-neutral Clinical Data Repository (CDR). In the implementation, Tieto Caretech supplies the Lifecare Clinical Suite, including SmartUI for role-based access to clinical data. Read more Tieto Indtech modernizing case management and records administration at 13 hospitals in Norway South-Eastern Norway Regional Health Authority (Helse Sør-Øst) has selected Tieto's Public 360° solution to establish a shared platform for case management and records administration across 13 hospitals. Read more 6 | Tieto Corporation Interim Report 3/2026
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IT market development Market development is currently mixed. Demand in the wider European IT services market improved moderately, driven by cloud, data, cybersecurity and AI-related services. Growth is increasingly concentrated in areas such as security, digital sovereignty and AI-enabled modernization, while demand for traditional project-based services is softer. Geopolitical tension, elevated energy prices and rising interest rates in several markets continue to make customers selective in their investment decisions. Demand for technology consulting in the Nordics remains subdued, while public sector digitalization and security continue to generate demand. Customers opt for shorter, modular engagements with measurable outcomes over large multi-year commitments. They also expect productivity gains from AI to be reflected in pricing and contract terms, which accelerates the move from time-and-material arrangements towards outcome-based commercial models. Key areas supporting demand are: • Cost efficiency and productivity programmes, with AI increasingly expected as a standard part of delivery • Targeted AI use cases embedded in existing business applications and processes, often sponsored by business functions rather than IT • Data platforms and data governance as foundations for scaling AI • Cybersecurity and resilience, as AI shortens the time between vulnerability discovery and exploitation • Regulatory compliance, as new requirements on AI transparency and cyber resilience come into force • Reduction of technical debt and renewal of ERP and enterprise applications, driven by ageing platforms AI investments continue to grow strongly, although most of them are directed at infrastructure rather than services. As deployments mature, customers pay more attention to the running cost of AI, governance of usage and the risk of depending on a single vendor. Interest is growing in delivery models in which customers end up owning the solution, with the transfer of know-how and clear exit options. This strengthens the position of partners with domain expertise and integration capabilities over pure-play technology providers. Digital sovereignty is becoming a concrete procurement requirement, particularly in the public sector, where exit strategies, open standards and control over data location are increasingly mandated. Together with ongoing application modernization, including in regulated sectors such as banking and healthcare, this supports demand for sovereign cloud solutions and architectures that avoid lock-in. Software remains more resilient than services, as customers prefer to extend the value of platforms they already use. Long-term demand drivers remain intact, but a broader recovery in Nordic technology consulting is expected to take longer than in the wider European IT services market. Strategy to become European software and technology consulting market leader within selected industries Based on its strong foundation, with deep customer relations, distinct capabilities and leading software assets, Tieto aims to strengthen its market leadership in the company’s core Nordic markets while driving selective international expansion with selected software products. The company is speeding up the execution of its strategy of becoming the European software and technology consulting market leader within selected industries through the following priorities: • Customer first: from product-driven to customer-centricity • Simplified core: focused operations and driving reduced complexity • Selective expansion: from strong Nordic roots to broader European growth • Competitive cost base: driving a leaner, more competitive cost base. Tieto aims to capture versatile market opportunities driven by AI, cloud and data through its business portfolio comprising the vertical software businesses Tieto Banktech, Caretech and Indtech along with the consulting business Tieto Tech Consulting. Tieto Tech Consulting: focusing on AI, cloud and data expertise, and enterprise applications – driving growth from deepening collaboration with strategic partners Tieto Banktech: driving European expansion with competitive fintech software-based solutions proven in the Nordics Tieto Caretech: bringing proven and open modular data-driven care software and platform to other European markets beyond the Nordics Tieto Indtech: expanding through scalable software in selected European markets based on products with a strong position in the Nordics These are run as four distinct businesses, but the company is leveraging its technology consulting services through industry verticals with software solutions and associated services. With this approach, the company will have a more coordinated approach towards customers to optimize and digitalize their core processes. Financial targets Tieto's long-term financial targets and capital allocation principles for 2026– 2028 are as follows: • Annual revenue growth1) of over 5% (CAGR) in 2027–2028 • Adjusted2) operating margin (EBITA) of over 16% by 2028 • Net debt/EBITDA below 2 • Dividend representing 60–80% of net profit3) With excess capital, the company will carry out share buybacks or pay extraordinary dividends. 1) Mainly organic, adjusted for currency effects 2) Adjustment items include restructuring costs, capital gains/losses, impairment charges and other items affecting comparability 3) Adjusted for non-cash one-time items 7 | Tieto Corporation Interim Report 3/2026
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Financial performance in July–September Continuing operations 7–9/2026 7–9/2025 Revenue, EUR million 389.6 454.2 Change, % -14 4 Organic growth, % -11 4 Operating profit (EBIT), EUR million 56.5 56.5 Operating margin (EBIT), % 14.5 12.4 Adjusted operating profit (EBITA), EUR million 70.2 87.8 Adjusted operating margin (EBITA), % 18.0 19.3 Third-quarter revenue was down by 14% to EUR 389.6 (454.2) million. The comparison figure includes additional revenue of EUR 22 million related to a court ruling in Tietoevry Banking, which also contributed to profitability in 2025. Exchange rates had a positive impact of 2 pp. on growth compared to the corresponding quarter of 2025, whereas acquisitions and divestments had a negative impact of 6 pp. Third-quarter operating profit (EBIT) amounted to EUR 56.5 (56.5) million, representing a margin of 14.5% (12.4%). Operating profit includes EUR -6.5 (-22.6) million in adjustment items. Adjusted operating profit (EBITA) stood at EUR 70.2 (87.8) million, or 18.0% (19.3%) of revenue. Further details on adjustment items are available in the Alternative Performance Measures paragraph. Depreciation and amortization amounted to EUR 13.8 (22.3) million, including EUR 6.7 (8.3) million in depreciation of right-of-use assets and EUR 1.5 (8.7) million in amortization of acquisition-related intangible assets. Net financial expenses stood at EUR 6.7 (8.3) million. Net interest expenses were EUR 5.2 (7.0) million and net losses from foreign exchange transactions were EUR 0.7 (losses 0.5) million. Other financial income and expenses amounted to EUR -0.7 (-0.8) million. Earnings per share (EPS) totalled EUR 0.37 (0.29). Adjusted earnings per share amounted to EUR 0.46 (0.50). Investments Capital expenditure totalled EUR 14.3 (12.7) million, mainly consisting of capitalized costs for the development of software. Capital expenditure represented 3.7% (2.8) of revenue. Cash flow Third-quarter net cash flow from operating activities amounted to EUR 2.8 (44.7)1) million, including an increase of EUR 56.5 (increase of 51.6) million in net working capital. 1) Comparative information includes cash flow from divestments and the contribution from the court ruling in Tieto Banktech. Financial performance by segment Revenue, EUR million Revenue, EUR million Growth, % Organic growth, % Adjusted operating profit, EUR million Adjusted operating profit, EUR million Adjusted operating margin, % Adjusted operating margin, % 7–9/2026 7–9/2025 7–9/2026 7–9/2025 7–9/2026 7–9/2025 Tieto Tech Consulting 152.7 187.8 -19 -11 23.8 24.6 15.6 13.1 Tieto Banktech 133.5 154.1 -13 -18 24.1 43.3 18.1 28.1 Tieto Caretech 53.9 54.8 -2 -1 17.9 17.4 33.1 31.7 Tieto Indtech 54.3 63.2 -14 -3 9.7 11.9 17.9 18.9 Eliminations and non- allocated costs -4.7 -5.8 — — -5.2 -9.4 — — Group total 389.6 454.2 -14 -11 70.2 87.8 18.0 19.3 For a comprehensive set of segment figures, see the Financial statement information. 8 | Tieto Corporation Interim Report 3/2026
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Tieto Tech Consulting Digital consulting and technology services 7–9/2026 7–9/2025 Revenue, EUR million 152.7 187.8 Change, % -19 -4 Organic growth, % -11 -3 Operating profit (EBIT), EUR million 20.2 14.3 Operating margin (EBIT), % 13.3 7.6 Adjusted operating profit (EBITA), EUR million 23.8 24.6 Adjusted operating margin (EBITA), % 15.6 13.1 Transformation progressing to building capabilities and pipeline for growth • Soft demand and project postponements in parts of the consulting market • Targeted competence adjustments to address a shift in market demand • Termination of loss-making US customer contract – impact on growth -2 pp. • Profitability supported by high utilization and reductions in delivery capacity and G&A costs • Strengthening AI and data capabilities through partnerships and upskilling • Sales capacity increased by 30% • Hiring up to 1 000 consultants over the next 12 months, focus on AI and data capabilities • In the fourth quarter of 2026, adjusted operating margin is anticipated to be at or below the level of the corresponding quarter of 2025 A new multi-year global software engineering partnership with Danish technology company GN Tieto Tech Consulting expanded its long-standing collaboration with Danish technology company GN, entering into a new multi-year global software engineering partnership. The agreement supports the company’s long-term ambitions to strengthen its software capabilities and global delivery model. GN has strong heritage in intelligent hearing, audio, video and collaboration solutions, with a portfolio including brands such as Jabra and SteelSeries. Software plays an increasingly important role across GN’s products and services and the expanded partnership will bring together delivery capabilities across multiple geographies. The partnership has a planned five-year horizon, with a minimum commitment of three and a half years. Supporting Traficom’s transition towards cloud- based data and analytics platforms The Finnish Transport and Communications Agency Traficom has selected Tieto Tech Consulting as its partner for Microsoft Business Intelligence (MSBI) services. Tieto will support Traficom in developing and maintaining its current Microsoft BI environment while supporting the transition towards modern, cloud-based data and analytics platforms, thereby supporting the agency’s decision-making, reporting and the continued development of its services. The collaboration aims to improve cost efficiency and scalability and further strengthen Traficom’s capabilities for data-driven decision-making. The five-year agreement includes two optional one-year extension periods and has an estimated total procurement value of EUR 6 million. Nokia Diamond Award for R&D Services Excellence Tieto Tech Consulting received the 2026 Nokia Diamond Award for R&D Services Excellence, recognizing the team’s strong technical leadership and delivery of significant customer value. Tieto is a long-term R&D embedded software development supplier to Nokia’s Mobile Networks business. The Nokia Diamond Awards is an annual programme recognizing outstanding supplier achievements and partnerships. 9 | Tieto Corporation Interim Report 3/2026
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Tieto Banktech Fintech software and services 7–9/2026 7–9/2025 Revenue, EUR million 133.5 154.1 Change, % -13 15 Organic growth, % -18 15 Operating profit (EBIT), EUR million 23.9 35.3 Operating margin (EBIT), % 17.9 22.9 Adjusted operating profit (EBITA), EUR million 24.1 43.3 Adjusted operating margin (EBITA), % 18.1 28.1 Growth impacted by significant known headwinds • Flat underlying growth ◦ Comparison impact of -14 pp. from the court ruling ◦ Legacy contract run-off impact of -4 pp. • Growth impacted by continued pressure in certain volume-based businesses • Underlying profitability improved, supported by cost optimization measures ◦ Comparison period includes 11.9 pp. from the court ruling • Strong order backlog starting to convert into revenue, supporting growth • European sales pipeline developing well • In the fourth quarter of 2026, adjusted operating margin is anticipated to be below the level of the corresponding quarter of 2025 Handelsbanken Norway strengthens its asset management offering with Tieto’s self-service solutions Handelsbanken Norway has entered into an agreement with Tieto Banktech to provide a portal for asset management to its customers. As key to this agreement are new, advanced investment tools that give customers a comprehensive online overview of their investments on a single platform, featuring new, user-friendly interfaces. The wealth management market in Norway is growing rapidly. Handelsbanken is positioning itself for accelerated growth by strengthening its service offering and customer experience. NBX selects Tieto Banktech to support digital and physical payment cards for stablecoin users Norwegian Block Exchange (NBX) has signed a contract with Tieto Banktech for card issuing services, enabling the Norwegian stablecoin exchange platform to offer digital and physical payment cards to its users. The partnership marks a significant step in NBX´s plans to enable its customers to connect digital assets with everyday payment services. The card programme is intended to help users access value from their stablecoin holdings more conveniently, by reducing the number of manual steps typically involved in selling digital assets, converting them into fiat currency, and transferring funds for card-based spending. 10 | Tieto Corporation Interim Report 3/2026
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Tieto Caretech Software for health and social care providers 7–9/2026 7–9/2025 Revenue, EUR million 53.9 54.8 Change, % -2 3 Organic growth, % -1 2 Operating profit (EBIT), EUR million 17.8 13.1 Operating margin (EBIT), % 33.1 23.8 Adjusted operating profit (EBITA), EUR million 17.9 17.4 Adjusted operating margin (EBITA), % 33.1 31.7 Continued strong performance – European expansion progressing with German market entry • Continued solid performance in the modern software portfolio • Growth impacted by legacy business decline (-5 pp.) • Continued strong profitability • German market opened as University Medical Center Mainz selects Lifecare • European sales pipeline developing well • In the fourth quarter of 2026, adjusted operating margin is anticipated to be at or above the level of the corresponding quarter of 2025 University Medical Center Mainz selects Lifecare to modernize its clinical IT foundation University Medical Center Mainz (UM Mainz), one of Germany’s leading university hospitals, has selected Tieto Caretech, x-tention and Better to migrate legacy clinical data into a shared, vendor-neutral Clinical Data Repository (CDR). Better provides the openEHR-based data platform, while Tieto Caretech supplies the Lifecare Clinical Suite, including SmartUI for role-based access to clinical data. X-tention leads implementation and operates the solution as a managed service from a certified private health cloud. Bringing data together in one open environment will support patient care, research, quality improvement and analytics. The project marks an important step for Tieto Caretech in Germany and builds on the Lifecare Open Health Suite launched by the three partners to help hospitals modernize incrementally and become more data-driven. University Hospital Basel develops digital tumour board solution with Tieto Caretech University Hospital Basel (USB) is working with Tieto Caretech to develop a more integrated and future-ready approach to multidisciplinary tumour boards. The complexity of multidisciplinary tumour boards creates a clear need for more integrated and scalable digital solutions that support clinical workflows and decision-making. The initiative explores how USB’s current setup can be replaced with a scalable and interoperable solution, starting with the lymphoma tumour board as the pilot. USB and Tieto are combining clinical expertise, data knowledge and technology to develop the solution around real clinical workflows and user needs. The collaboration supports the journey from case preparation to multidisciplinary decision-making and treatment recommendations. Tieto Caretech secures three municipal agreements in Sweden Tieto Caretech has secured agreements with three Swedish municipalities: Karlskoga, Kumla and Simrishamn. All three agreements were awarded through competitive procurement processes and renew existing customer relationships. Under the agreements, Caretech will deliver Lifecare solutions for health, elderly and social care. The agreements further strengthen Caretech’s position in the Swedish municipal market and reflect the continued demand for trusted digital welfare solutions. 11 | Tieto Corporation Interim Report 3/2026
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Tieto Indtech Industry-specific software products and data platforms 7–9/2026 7–9/2025 Revenue, EUR million 54.3 63.2 Change, % -14 4 Organic growth, % -3 2 Operating profit (EBIT), EUR million 3.1 6.6 Operating margin (EBIT), % 5.6 10.5 Adjusted operating profit (EBITA), EUR million 9.7 11.9 Adjusted operating margin (EBITA), % 17.9 18.9 Solid profitability – growth impacted by volume-based businesses • Growth impacted by decline in volume-based businesses in Multichannel & BIX and Data Driven Services • Lower demand impacting Pulp, Paper & Fibre • Solid profitability maintained • Agreement signed to divest the Pulp, Paper & Fibre business, supporting a more focused portfolio • In the fourth quarter of 2026, adjusted operating margin is anticipated to be above the level of the corresponding quarter of 2025 Modernizing case management and records administration at 13 hospitals in Norway South-Eastern Norway Regional Health Authority (Helse Sør-Øst) has selected Tieto's Public 360° solution to establish a shared platform for case management and records administration across 13 hospitals in the region. The solution will help consolidate and modernize the management of documents, information, and administrative processes across the health trusts. The objective is to enable more standardized workflows and more efficient work processes. Furthermore, the agreement aims to increase standardization and provide a foundation for further digitalization and automation. INPEX Idemitsu Norway chose eye-share for full traceability from purchase order to approved invoice INPEX Idemitsu Norway has entered into an agreement with Eye- share, part of Tieto Indtech with a view to using eye-share workflow both to create purchase orders and to approve invoices. This brings procurement and invoice processing together in one solution, with full traceability from purchase order to approved invoice. INPEX Idemitsu Norway is an oil and gas company headquartered at Lysaker, with ownership interests in several fields on the Norwegian continental shelf. The solution is scheduled to go live in the fourth quarter of 2026. Tieto and Siirto partner to improve e-invoicing experience in Finland Tieto and Siirto, an instant payment method with more than one million registered users in Finland, are partnering to make digital invoicing more accessible, efficient and user-friendly for both businesses and consumers in Finland. The collaboration will enable businesses to retrieve their customers' e-invoice addresses and send the first invoice directly to a customer’s online banking service. This is made possible by Siirto's newly launched centralized registry, combined with Tieto’s Multichannel B2C e-invoicing solution. 12 | Tieto Corporation Interim Report 3/2026
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Financial performance in January–September 1–9/2026 1–9/2025 Revenue, EUR million 1 264.5 1 388.1 Change, % -9 -1 Organic growth, % -6 -1 Operating profit (EBIT), EUR million 247.7 16.4 Operating margin (EBIT), % 19.6 1.2 Adjusted operating profit (EBITA), EUR million 199.6 181.3 Adjusted operating margin (EBITA), % 15.8 13.1 Nine-month revenue was down by 9% to EUR 1 264.5 (1 388.1) million. Nine- month operating profit (EBIT) amounted to EUR 247.7 (16.4) million, representing a margin of 19.6 (1.2). Operating profit includes EUR 58.6 (-58.2) million in adjustment items, mainly related to capital gains from the divestments of Bekk Consulting and Edlevo and HR & Payroll. More details are available in the section Acquisitions and divestments. Adjusted operating profit (EBITA) stood at EUR 199.6 (181.3) million, or 15.8% (13.1) of revenue. Improvement was mainly driven by solid implementation of the company's cost optimization programme. Further details on adjustment items are available in the Alternative Performance Measures paragraph. Depreciation and amortization amounted to EUR 42.7 (70.7) million, including EUR 21.9 (26.8) million in depreciation of right-of-use assets and EUR 4.7 (26.3) million in amortization of acquisition-related intangible assets. Net financial expenses stood at EUR 20.3 (27.3) million. Net interest expenses were EUR 13.7 (23.9) million and net losses from foreign exchange transactions were EUR 4.0 (losses 0.8) million. Other financial income and expenses amounted to EUR -2.6 (-2.7) million. Earnings per share (EPS) totalled EUR 1.62 (-0.12). Adjusted earnings per share amounted to EUR 1.17 (0.95). Investments Capital expenditure totalled EUR 45.4 (43.1) million, mainly consisting of capitalized costs for the development of software and investments in facilities. Capital expenditure represented 3.6% (3.1) of revenue. Cash flow Nine-month net cash flow from operating activities for continuing and discontinued operations amounted to EUR 108.3 (193.4)1) million, including an increase of EUR 71.8 (increase of 16.1) million in net working capital. 1) Comparative information includes cash flow from divestments and the contribution from the court ruling in Tieto Banktech. Financial performance by segment Revenue, EUR million Revenue, EUR million Growth, % Organic growth, % Adjusted operating profit, EUR million Adjusted operating profit, EUR million Adjusted operating margin, % Adjusted operating margin, % 1–9/2026 1–9/2025 1–9/2026 1–9/2025 1–9/2026 1–9/2025 Tieto Tech Consulting 509.7 605.9 -16 -8 66.9 70.8 13.1 11.7 Tieto Banktech 413.6 431.7 -4 -8 70.2 73.5 17.0 17.0 Tieto Caretech 168.4 170.2 -1 -2 47.3 45.7 28.1 26.8 Tieto Indtech 190.3 197.7 -4 -0 31.0 26.7 16.3 13.5 Eliminations and non- allocated costs -17.6 -17.4 — — -15.9 -35.5 — — Group total 1 264.5 1 388.1 -9 -6 199.6 181.3 15.8 13.1 For a comprehensive set of segment figures, see the tables section. 13 | Tieto Corporation Interim Report 3/2026
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Financial position at the end of the period The equity ratio was 48.7% (46.3%). Gearing was 45.6% (53.1%). Interest- bearing net debt totalled EUR 490.6 (551.9) million, including EUR 655.7 (635.3) million in interest-bearing debt, EUR 67.2 (81.1) million in lease liabilities, EUR 0.7 (4.4) million in interest-bearing receivables and EUR 231.6 (160.1) million in cash and cash equivalents. Interest-bearing long-term liabilities amounted to EUR 655.8 (670.0) million at the end of September, including a EUR 300 million bond maturing in 2031. Additionally, long-term liabilities include a EUR 130 million term loan, which, after an extension, will mature in 2028, a EUR 174 million term loan maturing in 2028, the long-term part of a EUR 6.5 million loan from the European Investment Bank, and lease liabilities of EUR 45.2 million. Interest-bearing short-term liabilities amounted to EUR 67.1 (46.4) million, mainly comprising commercial papers and lease liabilities. Tieto's sustainability-linked revolving credit facility of EUR 250 million, maturing in 2029, was not in use at the end of September. Order backlog Tieto's order backlog amounted to EUR 2 009 (2 048) million at the end of September. The order backlog was organically down by 2% from the corresponding period of 2025 and down by 6% from the previous quarter. The order backlog includes all signed customer orders that have not been recognized as revenue, including estimates of the value of consumption- based contracts. Personnel The number of employees, converted to full-time equivalent (FTE), amounted to 12 599 (14 693) at the end of September. The number of full-time employees in the global competence centres totalled 6 571 (7 585), or 52.1% (51.6) of all personnel. The 12-month rolling voluntary employee turnover stood at 7.2% (7.5) at the end of September. Tieto believes that a normal attrition level is around 10%. The company estimates salary inflation to be 3–3.5% on average for 2026. It is offset by a number of actions, including price increases, further offshoring, automation, management of the competence pyramid and overall cost efficiency across businesses. Performance in 2026 Tieto currently expects its organic growth to be in the range of -6 to -5% in 2026. Growth is impacted by phasing out legacy contracts in Tieto Banktech and Tieto Caretech. Furthermore, the high comparison figure for the third quarter, attributable to additional revenue arising from the court ruling related to deliveries in prior periods in Tieto Banktech, has impacted growth rates. The negative impact on Group-level annual growth will be around 3 percentage points. The underlying growth trajectory in the software businesses is expected to improve towards the year-end as the underlying business continues to improve and the impact of the previously communicated legacy headwinds gradually moderates. Growth in technology consulting is expected to remain weak. Tieto expects the full-year adjusted operating profit margin to be 15.5%– 16.0%. The improvement is mainly attributable to a reset of the cost base, driven by cost optimization measures. The company estimates salary inflation to be 3–3.5% on average for 2026. Tieto is also impacted by overall cost inflation, visible in items such as subcontracting, technology costs, premises, electricity and software licences. The negative impact is mitigated by a number of actions including price increases, cost optimization, further offshoring, automation, management of the competence pyramid and overall efficiency across businesses. Cost optimization programme Tieto's cost optimization programme with targeted run-rate savings of EUR 130 million is substantially complete, with a EUR 125 million run-rate having materialized by the end of the third quarter. The company has increased its expectation for total one-time costs, excluding capital gains, for the full year to approx. 2% of revenue due to further delivery capacity optimization. The prior expectation was 1.5%. 14 | Tieto Corporation Interim Report 3/2026
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Management In September, Tieto appointed Juuso Pajunen (M.Sc. (Econ.)) as Chief Financial Officer (CFO) and a member of the Group Executive Team. Pajunen will join the company in January 2027. Tomi Hyryläinen will continue in his position and as a member of the Group Executive Team until the end of December 2026. Effective 1 October 2026, Johan Enger Nygaard has been appointed as Managing Director of Tieto Tech Consulting and Bent Philipps as Managing Director of Tieto Indtech. They served in interim Managing Director positions in the respective businesses since May 2026. Furthermore, Oddgeir Hansen, Executive Project Lead, has decided to retire. He will continue in his position and as a member of the Group Executive Team until the end of October 2026. Shares On 12 February, Tieto announced a share buyback programme of EUR 150 million to maintain an efficient capital structure in line with the company’s capital allocation principles. During the time period from 13 February to 28 August 2026, the company acquired a total of 7 991 000 of its own shares, corresponding to approx. 6.7% of shares. On 22 July, Tieto announced a new share buyback programme of EUR 90 million and share repurchases for its share-based incentive programmes. During the time period from 31 August to 1 September 2026, the company acquired a total of 95 000 shares for the share-based incentive programmes. The share buyback programme of EUR 90 million is ongoing. By the end of the third quarter, Tieto had acquired a total of 940 000 shares under the EUR 90 million programme. By 30 September, Tieto had cancelled a total of 8 420 693 repurchased shares. Following the cancellations, the number of shares totalled 110 219 457. At the end of the period, the company held a total of 732 000 treasury shares, representing 0.66% of the total number of shares and voting rights. The number of outstanding shares, excluding the treasury shares, was 109 487 457. Significant risks and uncertainties Exchange rate fluctuations, particularly in the Swedish Krona and Norwegian Krone, may have a significant impact on the Group’s consolidated revenue and operating profit, given that approximately 60% of total sales are generated in Sweden and Norway. Geopolitical uncertainty and volatility remain elevated, driven by continued tensions in the Middle East and ongoing trade disputes. These developments have contributed to a more cautious customer investment environment and may impact Tieto’s operations and revenue. In response to the war in Ukraine, Tieto has continued to prioritize employee safety and well-being while maintaining uninterrupted service delivery to clients. The company’s service portfolio includes multi-year agreements in application services and industry-specific software, providing a degree of stability. The consulting business, with its typically shorter contract periods, is more exposed to economic uncertainty. Tieto’s ability to adapt, innovate and maintain strong client relationships remains key to managing these challenges. Rapid advances in generative and agentic AI are creating significant business opportunities while simultaneously expanding the risk landscape. Increasing AI adoption is reshaping software development and customer demand, requiring continuous reskilling and portfolio adaptation. At the same time, more capable AI models increase risks related to cybersecurity, privacy, fairness and ethics, as technologies driving productivity and innovation can also be used to identify vulnerabilities and automate malicious activities at scale. The company’s performance is sensitive to changes in demand from major customers, with Tieto’s top 10 customers accounting for close to 30% of revenue. Tieto relies on external vendors and subcontractors for service delivery, and any failure in their performance could lead to service disruptions, product defects and financial losses. Tieto continuously reviews its business portfolio, with a focus on simplifying its structure while pursuing selective growth opportunities. Acquisitions and divestments involve contractual risks, including potential breach-of-contract and indemnification claims. A divestment-related risk has materialized through Tieto’s request for arbitration against JS BidCo Oyj concerning the sale and purchase agreement for the Tech Services divestment. Risks in the IT services industry include the development and implementation of new technologies and software. For Tieto, this includes both proprietary software development and the integration of third-party solutions. In addition, existing services and products may rely on legacy technologies requiring modernization or replacement, potentially impacting revenue and profitability. Potential risks include additional technology licensing costs, software-related costs for customer solutions and internal use, and failures to meet agreed quality standards or delivery schedules. Cybersecurity breaches or malicious attacks could disrupt Tieto’s service delivery and adversely impact its financial performance and reputation. Operating across multiple jurisdictions, Tieto is subject to a broad range of European and international laws and regulations, including those relating to data protection and privacy, public procurement, anti-corruption, health and safety, environmental matters, employment, competition, securities markets, corporate governance and taxation. Non-compliance or failure to implement new regulatory requirements may result in regulatory action, financial penalties and other adverse consequences. 15 | Tieto Corporation Interim Report 3/2026
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Events after the period On 27 October, Tieto signed an agreement to sell its Pulp, Paper and Fibre s o f t w a r e b u s i n e s s T I P S t o V a l m e t . T h e b u s i n e s s t o b e d i v e s t e d g e n e r a t e d a l t o g e t h e r E U R 3 2 m i l l i o n i n r e v e n u e i n 2 0 2 5 . On 26 October, Tieto updated its full-year 2026 organic revenue growth outlook and profitability outlook. Tieto currently expects its organic growth for 2026 to be between -6% and -5% (previously -5% to -3%). Tieto estimates its full-year adjusted operating margin (adjusted EBITA) to be 15.5–16.0% (previously 14.8–15.8%) for 2026. Financial calendar 2027 17 February Interim report 4/2026 and full year 2026 Annual Report 2026, incl. Financial Statements, Report by the Board of Directors, Corporate Governance Statement and Remuneration Report 16 March Annual General Meeting Tieto will publish three interim reports 28 April Interim report 1/2027 21 July Half-year report 2027 26 October Interim report 3/2027 16 | Tieto Corporation Interim Report 3/2026
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17 | Tieto Corporation Interim Report 3/2026 Financial statement information
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Income statement 2026 2025 2026 2025 Change 2025 EUR million 7–9 7–9 1–9 1–9 % 1–12 Revenue 389.6 454.2 1 264.5 1 388.1 -9 1 852.3 Other operating income 7.4 5.4 103.4 11.8 > 100 21.0 Materials and services -83.6 -98.8 -270.0 -312.4 -14 -407.6 Employee benefit expenses -203.2 -246.7 -693.0 -807.3 -14 -1 064.5 Depreciation and amortization -13.8 -22.3 -42.7 -70.7 -40 -90.8 Impairment losses -5.5 0.0 -6.6 -82.8 -92 -85.8 Other operating expenses -34.4 -35.3 -107.9 -110.1 -2 -149.4 Operating profit (EBIT) 56.5 56.5 247.7 16.4 > 100 75.2 Interest and other financial income 2.7 1.6 7.7 3.8 99 5.3 Interest and other financial expenses -8.7 -9.5 -24.0 -30.4 -21 -38.5 Net foreign exchange gains/losses -0.7 -0.5 -4.0 -0.8 > 100 -1.1 Profit/loss before taxes 49.8 48.2 227.4 -10.9 > 100 41.0 Income taxes -9.1 -13.3 -41.4 -3.6 > 100 -15.3 Net profit/loss for the period, continuing operations 40.7 34.9 186.0 -14.5 > 100 25.6 Net loss for the period, discontinued operations -0.7 -104.3 -0.8 -169.7 -100 -166.1 Net profit/loss for the period 40.1 -69.4 185.2 -184.2 > 100 -140.5 Net profit/loss for the period attributable to Owners of the Parent company 40.1 -69.4 185.2 -184.2 > 100 -140.5 Earnings per share, EUR Basic Continuing operations 0.37 0.29 1.62 -0.12 > 100 0.22 Discontinued operations -0.01 -0.88 -0.01 -1.43 -100 -1.40 Net profit/loss for the period 0.36 -0.59 1.61 -1.55 > 100 -1.19 Diluted Continuing operations 0.36 0.29 1.61 -0.12 > 100 0.22 Discontinued operations -0.01 -0.88 -0.01 -1.43 -100 -1.40 Net profit/loss for the period 0.36 -0.59 1.61 -1.55 > 100 -1.18 Statement of other comprehensive income 2026 2025 2026 2025 Change 2025 EUR million 7–9 7–9 1–9 1–9 % 1–12 Net profit/loss for the period 40.1 -69.4 185.2 -184.2 > 100 -140.5 Items that may be reclassified subsequently to profit or loss Translation differences 24.7 14.2 59.6 15.7 > 100 17.8 Net investment hedge, net fair value losses -1.0 — -2.7 — 100 — Items reclassified to profit or loss Translation differences — 91.6 17.8 91.6 -81 91.6 Items that will not be reclassified subsequently to profit or loss Remeasurements of the defined benefit plans, net of tax 0.0 0.5 0.0 0.7 -98 0.3 Total other comprehensive income 23.8 106.4 74.7 108.0 -31 109.7 Total comprehensive income 63.8 37.0 259.8 -76.1 > 100 -30.8 Total comprehensive income attributable to Owners of the Parent company 63.8 37.0 259.8 -76.1 > 100 -30.8 Total comprehensive income attributable to owners of the Parent company arises from Continuing operations 64.5 46.0 260.7 -1.7 > 100 40.1 Discontinued operations -0.7 -9.0 -0.8 -74.4 -99 -70.8 18 | Tieto Corporation Interim Report 3/2026
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Statement of financial position Assets 2026 2025 Change 2025 EUR million 30 Sep 30 Sep % 31 Dec Goodwill 1 339.4 1 417.8 -6 1 309.4 Other intangible assets 244.0 216.8 13 216.3 Property, plant and equipment 17.4 20.3 -14 17.7 Right-of-use assets 61.3 68.9 -11 63.6 Deferred tax assets 5.5 18.1 -70 8.0 Defined benefit plan assets 0.3 0.4 -33 0.4 Financial assets at fair value 39.0 9.0 > 100 38.9 Other non-current receivables 10.7 41.5 -74 10.9 Total non-current assets 1 717.5 1 792.8 -4 1 665.2 Inventories 5.4 5.6 -3 6.3 Trade and other receivables 272.3 307.4 -11 288.9 Financial assets at fair value 15.8 15.9 -1 15.5 Current tax assets 3.4 6.5 -48 7.0 Cash and cash equivalents1) 231.6 160.1 45 146.2 Current assets excluding assets held for sale 528.5 495.5 7 463.8 Assets held for sale2) — — — 118.4 Total current assets 528.5 495.5 7 582.2 Total assets 2 246.0 2 288.3 -2 2 247.4 1) Cash and cash equivalents include restricted cash of EUR 25.8 (17.4) million held within bank accounts in Ukraine. Equity and liabilities 2026 2025 Change 2025 EUR million 30 Sep 30 Sep % 31 Dec Share capital, share issue premiums and other reserves 90.3 90.3 0 90.3 Invested unrestricted equity reserve 1 044.7 1 035.1 1 1 044.7 Retained earnings -59.6 -86.5 -31 -51.2 Total equity 1 075.4 1 038.9 4 1 083.8 Loans 610.7 622.2 -2 616.3 Lease liabilities 45.2 47.8 -6 43.0 Deferred tax liabilities 24.1 23.0 5 23.0 Provisions 1.5 2.5 -39 2.8 Defined benefit obligations 22.8 21.5 6 21.7 Financial liabilities at fair value 8.3 12.8 -35 12.2 Other non-current liabilities 4.1 6.0 -32 6.3 Total non-current liabilities 716.7 735.8 -3 725.3 Trade and other payables 339.4 419.0 -19 335.0 Financial liabilities at fair value 8.9 2.5 > 100 1.6 Current tax liabilities 25.7 11.4 > 100 8.1 Loans 45.1 13.2 > 100 14.0 Lease liabilities 22.0 33.2 -34 32.4 Provisions 12.9 34.3 -63 27.5 Current liabilities excluding liabilities associated with assets held for sale 454.0 513.6 -12 418.5 Liabilities associated with assets held for sale2) — — — 19.8 Total current liabilities 454.0 513.6 -12 438.3 Total equity and liabilities 2 246.0 2 288.3 -2 2 247.4 2) See Acquisitions and divestments. 19 | Tieto Corporation Interim Report 3/2026
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Statement of changes in shareholders' equity Owners of the Parent company EUR million Share capital Share premium and other reserves Own shares Cumulative translation differences Invested unrestricted equity reserve Retained earnings Total equity 1 Jan 2026 76.6 13.8 -3.9 -250.9 1 044.7 203.6 1 083.8 Comprehensive income Net profit for the period — — — — — 185.2 185.2 Other comprehensive income, net of tax Remeasurements of the defined benefit plans, net of tax — — — — — 0.0 0.0 Translation differences — — — 67.7 — -8.1 59.6 Net investment hedge, net fair value losses — — — -2.7 — — -2.7 Disposal of business operations — — — 17.8 — — 17.8 Total comprehensive income — — — 82.8 — 177.1 259.8 Transactions with owners Contributions and distributions Share-based incentive plans — — 1.8 — — -0.6 1.2 Dividends — — — — — -99.8 -99.8 Repurchase of own shares — — -169.6 — — — -169.6 Total transactions with owners — — -167.7 — — -100.4 -268.2 30 Sep 2026 76.6 13.8 -171.7 -168.1 1 044.7 280.1 1 075.4 Owners of the Parent company EUR million Share capital Share premium and other reserves Own shares Cumulative translation differences Invested unrestricted equity reserve Retained earnings Total equity 1 Jan 2025 76.6 38.5 -1.1 -347.8 1 203.5 328.3 1 298.1 Comprehensive income Net loss for the period — — — — — -184.2 -184.2 Other comprehensive income, net of tax Remeasurements of the defined benefit plans, net of tax — — — — — 0.7 0.7 Translation differences — 0.9 — 4.7 — 10.1 15.7 Disposal of business operations — — — 91.6 — 25.7 91.6 Total comprehensive income — 0.9 — 96.4 — -173.4 -76.1 Disposal of business operations - other changes — -25.7 — — — 25.7 — Transactions with owners Contributions and distributions Share-based incentive plans — — 3.0 — — -2.3 0.7 Dividends/return of capital — — — — -168.4 -9.5 -177.9 Repurchase of own shares — — -5.9 — — — -5.9 Total transactions with owners — — -2.9 — -168.4 -11.8 -183.1 30 Sep 2025 76.6 13.8 -3.9 -251.4 1 035.1 168.8 1 038.9 20 | Tieto Corporation Interim Report 3/2026
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Statement of cash flows 2026 2025 2026 2025 2025 EUR million 7–9 7–9 1–9 1–9 1–12 Cash flow from operating activities Net profit/loss for the period 40.1 -69.4 185.2 -184.2 -140.5 Adjustments Depreciation, amortization and impairment losses 19.4 22.3 49.3 278.4 301.5 Profit/loss on sale of property, plant and equipment, and business operations 0.5 129.2 -76.2 128.2 128.2 Other adjustments 1.1 2.4 0.0 3.1 2.5 Net financial expenses 6.7 9.3 20.3 30.7 37.7 Income taxes 9.1 17.9 41.4 12.9 24.6 Change in net working capital -56.5 -51.6 -71.8 -16.1 13.5 Cash generated from operating activities before interests and taxes 20.2 60.0 148.2 253.0 367.4 Net financial expenses paid -11.9 -2.8 -24.4 -29.7 -36.2 Income taxes paid -5.6 -12.6 -15.4 -30.0 -35.3 Cash flow from operating activities 2.8 44.7 108.3 193.4 295.9 Cash flow from investing activities Acquisition of business operations, net of cash acquired -0.6 — -6.5 4.0 4.0 Capital expenditure -13.8 -16.8 -45.3 -58.4 -71.4 Disposal of business operations, net of cash disposed -0.5 201.3 239.5 201.4 201.5 Proceeds from sale of property, plant and equipment 0.0 0.0 0.2 0.8 0.9 Change in loan receivables 0.1 -0.2 0.7 -0.2 0.1 Cash flow from/used in investing activities -14.8 184.3 188.5 147.6 135.1 Cash flow from financing activities Dividends paid — — -51.4 -89.0 -177.7 Repurchase of own shares -81.1 — -167.1 -5.8 -5.9 Repayments of lease liabilities -6.1 -11.6 -23.9 -39.9 -48.5 Proceeds from short-term borrowings 30.0 — 50.0 64.8 144.6 Repayments of short-term borrowings -0.8 -1.3 -20.8 -369.7 -449.5 Proceeds from long-term borrowings — — 300.0 300.0 300.0 Repayments of long-term borrowings — -220.0 -306.5 -227.2 -233.7 Cash flow used in financing activities -58.0 -232.9 -219.8 -366.8 -470.7 Change in cash and cash equivalents -69.9 -3.8 77.1 -25.8 -39.7 Cash and cash equivalents at the beginning of period 301.5 164.1 146.4 195.1 195.1 Foreign exchange differences 0.1 -0.2 8.2 -9.2 -9.0 Change in cash and cash equivalents -69.9 -3.8 77.1 -25.8 -39.7 Cash and cash equivalents at the end of period1,2) 231.6 160.1 231.6 160.1 146.4 1) Cash and cash equivalents include restricted cash of EUR 25.8 (17.4) million held within bank accounts in Ukraine. 2) At the end of 2025, cash and cash equivalents included EUR 0.2 million presented as assets held for sale in the statement of financial position. The statement of cash flows combines cash flows from both the continuing and the discontinued operations. 21 | Tieto Corporation Interim Report 3/2026
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Notes to the financial statements Basis of preparation The accounting policies adopted are consistent with those used in the annual financial statements for the year ended 31 December 2025. From Q1 2026, the Group has applied hedge accounting to manage its foreign currency risk arising from the net assets in the Norwegian subsidiaries of the parent company, Tieto Corporation. Forward contracts used in the hedging are revalued monthly and the revaluation differences are booked through other comprehensive income as part of translation differences. Amendments to International Financial Reporting Standards (IFRS) which have been effective from 1 January 2026 have had no material impact on the Group's financial statements. This interim report is unaudited. The preparation of the financial statements in accordance with IFRS requires management to make estimates and assumptions that affect the amounts reported and disclosed at the reporting date. Although these estimates are based on management's best knowledge of current events and actions, actual results may differ from the estimates. The areas requiring the exercise of judgement where a different opinion could result in significant changes to reported results are the same as reported in the 2025 consolidated financial statements. Revenue and profitability of Tieto are subject to seasonal variations. Usually, the third-quarter sales are affected by vacation period and the reversal of vacation accruals has a positive effect on profitability. Typically, the fourth- quarter sales and margins are positively affected by higher license sales for Tieto’s industry-specific software. In 2025, Tieto divested its Tietoevry Tech Services business to funds advised by Agilitas Private Equity LLP. The business was presented as a discontinued operation in accordance with IFRS 5 (Non-current Assets Held for Sale and Discontinued Operations), with the related assets and liabilities classified as held for sale from 31 March to 31 August 2025. The sale transaction was completed on 2 September 2025. For further information, see Discontinued operations. In accordance with IFRS 5, the profit or loss from the discontinued operation is reported separately from income and expenses from continuing operations in the consolidated income statement, with prior periods presented on a comparative basis. Intra-group revenues and expenses between continuing and discontinued operations are eliminated. All figures presented in this interim report have been rounded and consequently, the sum of individual figures may deviate from the sum totals presented. Key figures have been calculated using exact figures. Acquisitions and divestments As announced on 9 January 2026, Tieto entered into an agreement with AFI Family Espana to acquire 100% of the shares of OpenSpring and Grupo Onetec in Iberia. The acquisition was completed on 16 January 2026. As announced on 1 December 2025, Tieto entered into an agreement to sell Bekk Consulting AS ("Bekk") in Norway to private equity firm Axcel. Bekk was part of Tieto Tech Consulting. The sale was completed on 2 February 2026. As announced on 18 February 2026, Tieto entered into an agreement to sell two of Tieto Indtech’s software businesses (Edlevo and HR & Payroll) to EG, an industry-specific software provider operating in the Nordics. The sale was completed on 1 June 2026. For further information on each transaction, see Acquisitions and divestments. Share buyback programme On 12 February, Tieto announced a share buyback programme of EUR 150 million. During the time period from 13 February to 28 August 2026, the company acquired a total of 7 991 000 of its own shares. On 22 July, Tieto announced a new share buyback programme of EUR 90 million, which is still ongoing. By the end of the third quarter, Tieto had acquired a total of 940 000 shares under that programme. By 30 September, Tieto had cancelled a total of 8 420 693 repurchased shares. For further information, see Number of shares. Events after the reporting period On 27 October, Tieto signed an agreement to sell its Pulp, Paper and Fibre s o f t w a r e b u s i n e s s T I P S t o V a l m e t . T h e b u s i n e s s t o b e d i v e s t e d g e n e r a t e d a l t o g e t h e r E U R 3 2 m i l l i o n i n r e v e n u e i n 2 0 2 5 . On 26 October, Tieto updated its full-year 2026 organic revenue growth outlook and profitability outlook. Tieto currently expects its organic growth for 2026 to be between -6% and -5% (previously -5% to -3%). Tieto estimates its full-year adjusted operating margin (adjusted EBITA) to be 15.5–16.0% (previously 14.8–15.8%) for 2026. 22 | Tieto Corporation Interim Report 3/2026
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Segment information Tieto Group is comprised of four operating segments: Tieto Tech Consulting, Tieto Banktech, Tieto Caretech, and Tieto Indtech. The operating segments are reported in a manner consistent with the internal reporting provided to the Group Executive Team (formerly, Group Executive Management), which has been identified as Tieto’s chief operating decision maker being responsible for allocating resources and assessing performance of the operating segments as well as deciding on strategy. The Group Executive Team assesses the profitability of segments principally on the basis of adjusted operating profit (EBITA). Operating profit (EBIT) is, however, also an essential measure and is disclosed in this segment note as it is most consistent with the result reported in accordance with IFRS. Transactions between the segments are made on a market-terms basis. Eliminations include internal revenues between operating segments and Group function sales of internal services to the businesses. Non-allocated costs relate to Global management and certain Group Support functions and are shown separately in the operating profit (EBIT). Tieto Tech Consulting Tieto Tech Consulting is a leading accelerator for digital innovation and cloud- native development, providing business advisory and design, data engineering and specialized software R&D services across a range of industry sectors. It is a market-leading vendor in the Nordics focused on growth opportunities in AI, cloud and data. Tieto Tech Consulting has competence centres in Europe, India, China and the Americas – they leverage their expertise and the latest technologies to support clients from nearly 20 countries. Tieto Banktech Tieto Banktech is modernizing the financial sector in the Nordics and globally with modular, pre-integrated Banking-as-a-Service and a full suite of market- leading, scalable software and services within domains such as payments, cards, wealth management, financial crime prevention and credit. Built by unmatched industry expertise, the solutions help accelerate growth through digital customer engagement, real-time operational efficiency and regulatory compliance. Tieto Caretech Tieto Caretech offers modular, open and interoperable software for customers in the health and social care sectors. It has a strong position in the Nordics while investing to capture growth in an evolving European care market. Using advanced analytics and embedded AI, it provides decision support and process automation. Demand for software and services in healthcare segments such as hospitals, primary and secondary care, as well as elderly, home and family care is increasing rapidly on the back of the growing demand for better care outcomes, improved citizen experience, higher staff satisfaction and increased efficiency. Tieto Indtech Tieto Indtech provides industry-specific software and services for customers looking to enhance their critical processes – with software increasingly delivered as a service. Software products are provided for areas such as case management and pulp, paper & fibre. Furthermore, Tieto Indtech supports processes such as billing & invoicing and industry messaging as well as purchase-to-pay process automation. The business has extensive industry knowledge and in-depth expertise in utilizing data to create insights and add value across core business and operational processes. 23 | Tieto Corporation Interim Report 3/2026
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Revenue by segment 2026 2025 Change 2026 2025 Change 2025 EUR million 7–9 7–9 % 1–9 1–9 % 1–12 Tieto Tech Consulting 152.7 187.8 -19 509.7 605.9 -16 805.8 Tieto Banktech 133.5 154.1 -13 413.6 431.7 -4 569.6 Tieto Caretech 53.9 54.8 -2 168.4 170.2 -1 232.7 Tieto Indtech 54.3 63.2 -14 190.3 197.7 -4 267.0 Eliminations -4.7 -5.8 -18 -17.6 -17.4 1 -22.8 Group total 389.6 454.2 -14 1 264.5 1 388.1 -9 1 852.3 In Q1 2026, comparative information for segment revenue, operating profit (EBIT), depreciations, and personnel was recast to reflect minor changes, between all segments except Tieto Caretech, arising due to structural changes. Group numbers remained unchanged. Operating profit/loss (EBIT) by segment 2026 2025 Change 2026 2025 Change 2025 EUR million 7–9 7–9 % 1–9 1–9 % 1–12 Tieto Tech Consulting 20.2 14.3 42 73.8 41.6 78 63.6 Tieto Banktech 23.9 35.3 -32 69.2 -31.7 > 100 -10.0 Tieto Caretech 17.8 13.1 37 46.8 40.9 14 55.5 Tieto Indtech 3.1 6.6 -54 81.1 14.0 > 100 25.2 Non-allocated costs -8.5 -12.8 -33 -23.2 -48.3 -52 -59.2 Group total 56.5 56.5 0 247.7 16.4 > 100 75.2 Operating margin (EBIT) by segment 2026 2025 Change 2026 2025 Change 2025 % 7–9 7–9 pp 1–9 1–9 pp 1–12 Tieto Tech Consulting 13.3 7.6 6 14.5 6.9 8 7.9 Tieto Banktech 17.9 22.9 -5 16.7 -7.4 24 -1.8 Tieto Caretech 33.1 23.8 9 27.8 24.1 4 23.9 Tieto Indtech 5.6 10.5 -5 42.6 7.1 36 9.4 Operating margin (EBIT) 14.5 12.4 2 19.6 1.2 18 4.1 24 | Tieto Corporation Interim Report 3/2026
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Non-current assets by country 2026 2025 Change 2025 EUR million 30 Sep 30 Sep % 31 Dec Norway 177.4 152.2 17 150.4 Finland 73.7 64.1 15 65.2 Sweden 31.6 42.8 -26 40.3 Other 39.8 46.9 -15 41.7 Total non-current assets 322.7 305.9 5 297.6 Non-current assets include property, plant and equipment, right-of-use assets and intangible assets excluding goodwill. Personnel by segment End of period Average 2026 2025 Change Share 2025 2026 2025 30 Sep 30 Sep % % 31 Dec 1–9 1–9 Tieto Tech Consulting1) 6 405 8 039 -20 51 7 828 6 904 8 547 Tieto Banktech 3 039 3 042 -0 24 2 990 3 018 3 085 Tieto Caretech 1 518 1 575 -4 12 1 516 1 498 1 579 Tieto Indtech1) 1 154 1 466 -21 9 1 397 1 287 1 535 Group functions 482 571 -16 4 515 502 591 Group total 12 599 14 693 -14 100 14 246 13 210 15 337 1) See Acquisitions and divestments. In Q1 2026, as noted above, some personnel transferred between segments, mainly from Tieto Banktech to Tieto Tech Consulting. The comparative information was recast accordingly. Personnel by country End of period Average 2026 2025 Change Share 2025 2026 2025 30 Sep 30 Sep % % 31 Dec 1–9 1–9 Norway1) 2 124 2 831 -25 17 2 756 2 192 2 858 Sweden1) 1 737 2 125 -18 14 2 054 1 872 2 187 Finland 1 550 1 623 -4 12 1 600 1 583 1 659 India 2 184 2 434 -10 17 2 399 2 284 2 525 Ukraine 849 1 266 -33 7 1 198 1 042 1 340 China 715 894 -20 6 858 756 959 Poland 792 746 6 6 745 780 894 Latvia 691 741 -7 5 715 704 776 Czech Republic 570 616 -7 5 584 578 644 Bulgaria 442 533 -17 4 499 468 592 Other1) 945 884 7 8 839 952 904 Group total 12 599 14 693 -14 100 14 246 13 210 15 337 Onshore countries 6 029 7 108 -15 48 6 909 6 265 7 245 Offshore countries 6 571 7 585 -13 52 7 338 6 945 8 092 Group total 12 599 14 693 -14 100 14 246 13 210 15 337 1) See Acquisitions and divestments. 25 | Tieto Corporation Interim Report 3/2026
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Depreciation by segment 2026 2025 Change 2026 2025 Change 2025 EUR million 7–9 7–9 % 1–9 1–9 % 1–12 Tieto Tech Consulting 3.3 4.2 -22 10.2 13.0 -21 17.3 Tieto Banktech 2.4 2.6 -5 7.6 8.3 -8 10.9 Tieto Caretech 1.2 1.3 -4 3.9 3.8 2 5.2 Tieto Indtech 0.7 1.0 -26 2.6 3.2 -18 4.3 Group functions 0.8 1.6 -50 2.6 5.2 -50 6.5 Group total 8.5 10.6 -20 27.0 33.5 -20 44.2 Amortization of other intangible assets by segment 2026 2025 Change 2026 2025 Change 2025 EUR million 7–9 7–9 % 1–9 1–9 % 1–12 Tieto Tech Consulting 0.0 0.0 0 0.0 0.0 0 0.0 Tieto Banktech 2.8 2.1 34 8.1 8.1 -1 10.3 Tieto Caretech 0.8 0.8 -4 2.3 2.4 -5 3.2 Tieto Indtech 0.3 0.1 > 100 0.7 0.2 > 100 0.3 Group functions 0.0 0.0 0 0.1 0.1 -51 0.1 Group total 3.9 3.0 30 11.1 10.8 2 13.9 Amortization of acquisition-related intangible assets by segment 2026 2025 Change 2026 2025 Change 2025 EUR million 7–9 7–9 % 1–9 1–9 % 1–12 Tieto Tech Consulting 0.9 2.8 -67 2.8 8.6 -68 10.7 Tieto Banktech 0.5 4.7 -89 1.8 14.3 -88 17.7 Tieto Caretech 0.0 0.0 0 0.1 0.1 2 0.2 Tieto Indtech — 1.1 > 100 — 3.3 > 100 4.1 Group functions — — — — — — — Group total 1.5 8.7 -83 4.7 26.3 -82 32.7 In Q4 2025, the amortization ended for the majority of the customer related intangible assets recognized in connection with the EVRY acquisition in 2019. Impairment losses In September 2026,Tieto Indtech recognized an impairment loss of EUR 5.8 million on capitalized development costs. In 2026, the Group has recorded impairment losses totalling EUR 0.8 million mainly on office facilities (right-of- use assets) in Czech Republic, Sweden, Finland, Norway and Germany. In 2025, Tieto Banktech recognized an impairment loss of EUR 80.4 million on capitalized development costs relating to certain internally developed software. Tieto Caretech recognized an impairment loss of EUR 2.5 million on capitalized development costs. In Group functions, impairment losses totalling EUR 2.8 million were recognized on office facilities (right-of-use assets) in Norway, Sweden and Latvia. 26 | Tieto Corporation Interim Report 3/2026
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Discontinued operations As described in the Basis of preparation, the assets and liabilities of Tietoevry Tech Services were classified as held for sale and presented as a discontinued operation from Q1 2025 onwards. On 2 September 2025, Tieto announced that it had completed the sale transaction. The purchase price for the divested operations amounts to EUR 300 million, of which EUR 70 million is in the form of earn-out payments subject to fulfilment of certain performance milestones in 2026 and 2027 and payable in the form of vendor loans. Management’s estimate of the present value of the future earn-out payments totals EUR 30 million. In Q2 2026, Tieto filed a request for arbitration related to the Tech Services divestment, seeking approximately EUR 10 million under the sale and purchase agreement. The buyer subsequently filed a counterclaim of approximately EUR 110 million, which Tieto considers to be without merit. The arbitration commenced in August and is expected to conclude within approximately 18 months. Results of discontinued operations 2026 2025 2026 2025 2025 EUR million 7–9 7–9 1–9 1–9 1–12 Revenue — 134.5 — 594.9 594.9 Materials and services — -14.5 — -61.1 -61.1 Employee benefit expenses — -57.0 — -310.2 -310.2 Depreciation and amortization — — — -16.4 -16.4 Impairment losses — — — -108.4 -108.4 Loss on sale, net1) -0.6 -129.2 -1.0 -129.2 -129.2 Other operating income and expenses, net -0.1 -32.5 0.2 -126.5 -122.9 Operating loss (EBIT) -0.7 -98.7 -0.8 -157.0 -153.4 Financial income and expenses — -0.9 — -3.4 -3.4 Loss before taxes -0.7 -99.6 -0.8 -160.4 -156.8 Income taxes — -4.6 — -9.3 -9.3 Net loss for the period, discontinued operations -0.7 -104.3 -0.8 -169.7 -166.1 1) In Q3 2026, selling costs incurred relate to advisor fees. Other comprehensive income from discontinued operations 2026 2025 2026 2025 2025 EUR million 7–9 7–9 1–9 1–9 1–12 Net loss for the period, discontinued operations -0.7 -104.3 -0.8 -169.7 -166.1 Items that may be reclassified subsequently to profit or loss – Translation differences — 3.6 — 3.6 3.6 Items reclassified to profit or loss – Translation differences — 91.6 — 91.6 91.6 Items that will not be reclassified subsequently to profit or loss – Remeasurements of the defined benefit plans, net of tax — -0.0 — 0.1 0.1 Total comprehensive income, discontinued operations -0.7 -9.0 -0.8 -74.4 -70.8 Reconciliation of net result of sale 2025 EUR million 31 Dec Cash 222.6 Post-closing adjustments (estimate) 7.3 Fair value of contingent consideration (estimate) 30.0 Total consideration received or receivable 259.9 Carrying amount of net assets on disposal -290.6 Reclassification of foreign exchange losses from other comprehensive income -91.6 Costs to sell -6.0 Other -0.9 Net result of sale -129.2 Cash flows from discontinued operations The net cash flows attributable to the operating, investing and financing activities of discontinued operations are as follows: 2026 2025 2025 EUR million 1–9 1–9 1–12 Cash flow from operating activities 0.2 58.0 60.5 Cash flow from/used in investing activities -1.0 186.1 186.1 Cash flow used in financing activities — -16.8 -16.8 Net cash flows from/used in discontinued operations -0.8 227.3 229.8 27 | Tieto Corporation Interim Report 3/2026
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Acquisitions and divestments Acquisition of OpenSpring and Grupo Onetec On 16 January 2026, Tieto acquired 100% of the shares of OpenSpring and Grupo Onetec in Iberia. These companies provide technology consulting and anti-money laundering services. The acquisition supports Tieto's selective international expansion plans. The acquisition is included in Tieto Tech Consulting. As at 31 March 2026, the number of employees, converted to full- time equivalent (FTE), in the acquired companies totalled 176. The accounting for the acquired entities is presented as provisional as at the reporting date and can be adjusted within 12 months in case of any new information obtained about facts and circumstances that existed at the acquisition date and the consideration paid. The following table summarizes the fair values of the assets and the liabilities recognized at the acquisition date. The purchase consideration amounts to EUR 8.1 million. Fair value of net assets acquired and goodwill 2026 EUR million 30 Sep Intangible assets1) 2.0 Other non-current assets 0.0 Deferred tax assets 0.8 Trade and other receivables 1.9 Cash and cash equivalents 0.4 Deferred tax liabilities -0.5 Trade and other payables -1.8 Total net assets acquired 2.8 Goodwill2) 5.3 Total 8.1 Consideration paid in cash3) 6.9 Cash and cash equivalents acquired -0.4 Net cash flow used in acquisition 6.5 1) The identified intangible assets relate to customer relationships with an estimated useful life of 6 years. 2) The goodwill is attributable to the skilled assembled workforce obtained through the acquisition and future customers. 3) The total purchase consideration amounts to EUR 8.1 million and comprises cash consideration paid to date and deferred consideration of EUR 1.2 million payable in January 2027. Sale of Bekk Consulting AS As announced on 1 December 2025, Tieto entered into an agreement to sell Bekk Consulting AS ("Bekk") in Norway to private equity firm Axcel. Bekk was part of Tieto Tech Consulting. The sale was completed on 2 February 2026. The disposal did not represent a separate major line of business or geographical area of operations and therefore, it was not classified as a discontinued operation. Bekk's result was reported as part of continuing operations. The assets and liabilities related to Bekk, including an allocation of goodwill of EUR 112.6 million, were classified as held for sale from 30 November 2025 to 31 January 2026. The purchase price amounted to EUR 155.7 million and the gain on sale was EUR 20.1 million. As at 31 January 2026, Bekk's number of employees, converted to full-time equivalent (FTE), totalled 602. Reconciliation of net result of sale 2026 EUR million 31 Jan Total consideration received in cash 155.7 Carrying amount of net assets on disposal -118.2 Reclassification of foreign exchange losses from other comprehensive income -15.2 Costs to sell -1.5 Other -0.7 Net gain on sale 20.1 Consideration received in cash 155.7 Costs to sell -1.5 Cash and cash equivalents disposed of -6.6 Net cash flow on disposal 147.6 28 | Tieto Corporation Interim Report 3/2026
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Carrying amounts of assets and liabilities on disposal 2026 EUR million 31 Jan Goodwill 112.6 Non-current assets1) 2.0 Trade and other receivables 12.1 Cash and cash equivalents 6.6 Total assets 133.3 Lease liabilities 0.8 Provisions 0.2 Trade and other payables 14.2 Total liabilities 15.1 Net assets on disposal 118.2 1) All depreciation ceased on tangible assets from 1 December 2025 onwards in accordance with IFRS 5. Sale of two Tieto Indtech software businesses As announced on 18 February 2026, Tieto entered into an agreement to sell two of Tieto Indtech's software businesses to EG, an industry-specific software provider operating in the Nordics. The sale was completed on 1 June 2026. The divested businesses are Edlevo, a leading provider of learning administration software to Swedish and Finnish pre-schools and schools, and HR & Payroll, a leading provider of HR and payroll software specific to public sector customers in Sweden, covering customers in central government organizations, universities, and municipalities. The disposal did not represent a separate major line of business or geographical area of operations and therefore, it was not classified as a discontinued operation. The results of the businesses were reported as part of continuing operations. The assets and liabilities related to the two software businesses, including an allocation of goodwill of EUR 25.5 million, were classified as held for sale from 18 February to 31 May 2026. The total consideration amounted to EUR 93.0 million and the gain on sale was EUR 57.1 million. As at 31 May 2026, the number of employees in the divested businesses, converted to full-time equivalent (FTE), totalled 249 mainly in Sweden. Reconciliation of net result of sale 2026 EUR million 30 Sep Cash 96.7 Post-closing adjustment (estimate) -3.7 Total consideration received or receivable in cash 93.0 Carrying amount of net assets on disposal -28.6 Reclassification of foreign exchange losses from other comprehensive income -2.5 Costs to sell -3.7 Other -1.0 Net gain on sale 57.1 Consideration received in cash 96.7 Costs to sell -3.7 Net cash flow on disposal 92.9 Carrying amounts of assets and liabilities on disposal 2026 EUR million 31 May Goodwill 25.5 Non-current assets1) 5.0 Trade and other receivables 4.1 Total assets 34.6 Trade and other payables2) 6.1 Total liabilities 6.1 Net assets held for sale 28.6 1) Include mainly capitalized development costs for which amortization had not commenced. 2) Trade and other payables updated by 1.2 million in September 2026. 29 | Tieto Corporation Interim Report 3/2026
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Financial assets and liabilities Derivatives The nominal values of derivatives include the gross amount of all nominal values for contracts that have not yet been settled or closed. The amount of nominal value outstanding is not necessarily a measure or indication of market risk, as the exposure of certain contracts may be offset by other contracts. During the period, the Group applied net investment hedge accounting for a foreign currency forward contract to hedge foreign exchange exposure arising from N O K ‑ d e n o m i n a t e d n e t a s s e t s o f i t s N o r w e g i a n s u b s i d i a r i e s . Nominal values of derivatives 2026 2025 EUR million 30 Sep 31 Dec Forward contracts outside hedge accounting at fair value through profit or loss 702.3 531.9 Forward contracts within hedge accounting at fair value through other comprehensive income 46.3 — Interest rate swaps 280.0 280.0 Fair values of derivatives 30 Sep 2026 31 Dec 2025 EUR million Gross positive fair values Gross negative fair values Net fair values Gross positive fair values Gross negative fair values Net fair values Forward contracts outside hedge accounting at fair value through profit or loss 2.1 -7.9 -5.8 3.8 -1.6 2.2 Forward contracts within hedge accounting at fair value through other comprehensive income — -1.0 -1.0 — — — Interest rate swaps 8.5 -8.3 0.2 8.4 -12.2 -3.8 The fair values at the reporting date 10.6 -17.2 -6.7 12.2 -13.8 -1.7 Derivatives are used for economic hedging purposes only. The fair values of foreign exchange derivatives are calculated according to foreign exchange and interest rates on the closing date. All outstanding currency derivative contracts will expire within 12 months after the reporting date. The fair values of interest rate swaps are derived from market data. Fair value measurement of financial assets and liabilities There have been no changes in fair value methodology and input levels. Foreign exchange forward contracts and interest rate swaps are valued based on Level 2 inputs. The fair value of the contingent consideration (EUR 30.0 million on 30 Sep 2026) is valued based on Level 3 inputs. For other financial assets at fair value through profit or loss (EUR 0.5 million on 30 Sep 2026), the fair value measurement is based on their initial value. The fair market value cannot be reliably estimated due to lack of a proper market for the assets. Trade receivables to be sold via non-recourse arrangements for the sale of receivables are classified as Financial assets at fair value through profit or loss (EUR 13.7 million at 30 Sep 2026). Management estimates that the carrying amount approximates the fair value due to their short-term nature. 30 | Tieto Corporation Interim Report 3/2026
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Number of shares 2026 2025 2026 2025 2025 7–9 7–9 1–9 1–9 1–12 Outstanding shares, end of period Basic 109 487 457 118 401 578 109 487 457 118 401 578 118 401 578 Effect of dilutive share-based incentive plans 418 478 82 947 421 483 91 081 177 697 Diluted 109 905 935 118 484 525 109 908 940 118 492 659 118 579 275 Outstanding shares, average Basic 111 338 267 118 401 578 114 850 902 118 520 941 118 490 938 Effect of dilutive share-based incentive plans 418 478 82 947 421 483 91 081 177 697 Diluted 111 756 745 118 484 525 115 272 385 118 612 022 118 668 635 Company's possession of its own shares End of period 732 000 238 572 732 000 238 572 238 572 Average 1 348 491 238 572 996 896 119 480 149 497 On 12 February, Tieto announced a share buyback programme of EUR 150 million to maintain an efficient capital structure in line with the company’s capital allocation principles. During the time period from 13 February to 28 August 2026, the company acquired a total of 7 991 000 of its own shares, corresponding to approx. 6.7% of shares. On 22 July, Tieto announced a new share buyback programme of EUR 90 million and share repurchases for its share-based incentive programmes. During the time period from 31 August to 1 September 2026, the company acquired a total of 95 000 shares for the share-based incentive programmes. The share buyback programme of EUR 90 million is ongoing. By the end of the third quarter, Tieto had acquired a total of 940 000 shares under the EUR 90 million programme. By 30 September, Tieto had cancelled a total of 8 420 693 repurchased shares. Following the cancellations, the number of shares totalled 110 219 457. Alternative performance measures (APMs) Tieto presents certain financial measures, which, in accordance with the “Alternative Performance Measures” guidance issued by the European Securities and Markets Authority, are not accounting measures defined or specified in IFRS and are, therefore, considered alternative performance measures. Tieto believes that alternative performance measures provide meaningful supplemental information to the financial measures presented in the consolidated financial statements prepared in accordance with IFRS and increase the understanding of the profitability of Tieto’s operations. In addition, they are seen as useful indicators of the Group's financial position and ability to obtain funding. Alternative performance measures are not accounting measures defined or specified in IFRS and, therefore, they are considered non-IFRS measures, which should not be viewed in isolation or as a substitute to the IFRS financial measures. Adjusted operating profit (EBITA) by segment 2026 2025 Change 2026 2025 Change 2025 EUR million 7–9 7–9 % 1–9 1–9 % 1–12 Tieto Tech Consulting 23.8 24.6 -3 66.9 70.8 -6 98.5 Tieto Banktech 24.1 43.3 -44 70.2 73.5 -5 98.7 Tieto Caretech 17.9 17.4 3 47.3 45.7 3 63.8 Tieto Indtech 9.7 11.9 -18 31.0 26.7 16 38.1 Non-allocated costs -5.2 -9.4 -44 -15.9 -35.5 -55 -42.6 Group total 70.2 87.8 -20 199.6 181.3 10 256.5 In Q1 2026, comparative information for segment adjusted operating profit (EBITA) was recast to reflect minor changes, between all segments except Tieto Caretech, arising due to structural changes. Group numbers remained unchanged. Adjusted operating margin (EBITA) by segment 2026 2025 Change 2026 2025 Change 2025 % 7–9 7–9 pp 1–9 1–9 pp 1–12 Tieto Tech Consulting 15.6 13.1 2 13.1 11.7 1 12.2 Tieto Banktech 18.1 28.1 -10 17.0 17.0 -0 17.3 Tieto Caretech 33.1 31.7 1 28.1 26.8 1 27.4 Tieto Indtech 17.9 18.9 -1 16.3 13.5 3 14.3 Adjusted operating margin (EBITA) 18.0 19.3 -1 15.8 13.1 3 13.8 31 | Tieto Corporation Interim Report 3/2026
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Reconciliation of adjusted operating profit (EBITA) 2026 2025 2026 2025 2025 EUR million 7–9 7–9 1–9 1–9 1–12 Operating profit (EBIT) 56.5 56.5 247.7 16.4 75.2 + Amortization of intangible assets recognized at fair value from acquisitions 1.5 8.7 4.7 26.3 32.7 + Impairment losses on other intangible assets1) 5.8 — 5.8 80.4 82.9 Adjustment items: - Capital gains2) -0.0 — -77.2 -0.7 -0.7 +/- M&A related items 0.7 0.4 2.2 0.6 2.2 + Restructuring costs 3.0 20.8 11.1 44.8 48.7 + War in Ukraine 0.6 0.6 2.1 1.9 2.6 +/- Other items3) 2.3 0.8 3.4 11.5 12.9 Adjusted operating profit (EBITA) 70.2 87.8 199.6 181.3 256.5 1) Impairment losses were recorded in Tieto Indtech in 2026 and in Tieto Banktech and Tieto Caretech in 2025. See Impairment losses. 2) See Acquisitions and divestments. 3) Include right-of-use asset impairment losses and other minor non-recurring items. See also Impairment losses. Other key figures 2026 2025 2026 2025 2025 7–9 7–9 1–9 1–9 1–12 Adjusted earnings per share, EUR 0.46 0.50 1.17 0.95 1.39 Equity per share, EUR 9.82 8.77 9.82 8.77 9.15 Return on equity, 12-month rolling, % 21.4 0.1 21.4 0.1 2.2 Return on capital employed, 12-month rolling, % 17.8 2.6 17.8 2.6 3.8 Equity ratio, % 48.7 46.3 48.7 46.3 49.3 Gearing, % 45.6 53.1 45.6 53.1 51.3 Interest-bearing net debt, EUR million 490.6 551.9 490.6 551.9 555.5 EBITDA, 12-month rolling, EUR million 378.9 228.3 378.9 228.3 251.8 Net debt/EBITDA 1.3 2.4 1.3 2.4 2.2 Capital expenditure, EUR million 14.3 12.7 45.4 43.1 55.9 32 | Tieto Corporation Interim Report 3/2026
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Calculation of alternative performance measures Adjusted earnings per share = Net profit for the period excluding adjustment items, amortization of acquisition-related intangible assets, impairment of goodwill and other intangible assets, and related tax impact per country Weighted average number of shares Adjustment items = Restructuring costs + capital gains/losses + impairment charges + other items affecting comparability Operating profit (EBIT) = Net profit + interests + taxes Operating margin (EBIT), % = Operating profit (EBIT) Revenue Adjusted operating profit (EBITA) = Operating profit (EBITA) + adjustment items Adjusted operating margin (EBITA), % = Adjusted operating profit (EBITA) Revenue Equity per share = Total equity Number of shares at the year-end Return on equity, 12-month rolling, % = Profit before taxes and non-controlling interests – income taxes * 100Total equity (12-month average) Return on capital employed, 12-month rolling, % = Profit before taxes + interest and other financial expenses * 100Total assets – non-interest-bearing liabilities (12-month average) Equity ratio, % = Total equity * 100Total assets – advance payments Gearing, % = Interest-bearing net debt * 100Total equity Interest-bearing net debt = Interest-bearing liabilities – interest-bearing receivables – cash and cash equivalents EBITDA = Operating profit (EBIT) + Depreciation + Amortization + Impairment Net debt/EBITDA = Interest-bearing net debt EBITDA (12-month) Capital expenditure = Acquisitions of intangible assets and property, plant and equipment 33 | Tieto Corporation Interim Report 3/2026
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Quarterly figures Key figures 2026 2026 2026 2025 2025 2025 2025 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Earnings per share, EUR Basic 0.37 0.73 0.51 0.34 0.29 -0.52 0.10 Diluted 0.36 0.73 0.51 0.34 0.29 -0.52 0.10 Adjusted earnings per share, EUR 0.46 0.32 0.39 0.44 0.50 0.19 0.26 Equity per share, EUR 9.82 9.56 9.16 9.15 8.77 8.45 9.32 Return on equity, 12-month rolling, % 21.4 21.1 6.9 2.2 0.1 -1.4 4.7 Return on capital employed,12-month rolling, % 17.8 16.9 7.1 3.8 2.6 1.5 5.6 Equity ratio, % 48.7 48.4 46.9 49.3 46.3 35.6 36.4 Gearing, % 45.6 35.7 35.3 51.3 53.1 78.5 64.2 Interest-bearing net debt, EUR million 490.6 388.8 376.6 555.5 551.9 785.1 708.0 EBITDA, 12-month rolling, EUR million 378.9 381.8 296.3 251.8 228.3 208.3 222.6 Net debt/EBITDA 1.3 1.0 1.3 2.2 2.4 3.8 3.2 Capital expenditure, EUR million 14.3 15.9 15.1 12.8 12.7 14.9 15.4 Income statement 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Revenue 389.6 426.6 448.3 464.2 454.2 463.1 470.8 Other operating income 7.4 66.6 29.5 9.2 5.4 3.6 2.8 Materials and services -83.6 -89.1 -97.3 -95.2 -98.8 -106.7 -106.9 Employee benefit expenses -203.2 -242.0 -247.8 -257.2 -246.7 -280.2 -280.4 Depreciation, amortization and impairment losses -19.4 -14.5 -15.4 -23.0 -22.3 -106.8 -24.5 Other operating expenses -34.4 -35.8 -37.6 -39.3 -35.3 -39.1 -35.7 Operating profit/loss (EBIT) 56.5 111.6 79.6 58.8 56.5 -66.1 26.0 Financial income and expenses -6.7 -8.1 -5.5 -6.9 -8.3 -9.7 -9.3 Profit/loss before taxes 49.8 103.5 74.0 51.9 48.2 -75.8 16.7 Income taxes -9.1 -18.8 -13.5 -11.8 -13.3 14.7 -5.0 Net profit/loss for the period, continuing operations 40.7 84.7 60.6 40.1 34.9 -61.1 11.8 Net profit/loss for the period, discontinued operations -0.7 0.4 -0.6 3.5 -104.3 26.9 -92.3 Net profit/loss for the period 40.1 85.1 60.0 43.6 -69.4 -34.3 -80.5 34 | Tieto Corporation Interim Report 3/2026
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Statement of financial position 2026 2026 2026 2025 2025 2025 2025 EUR million 30 Sep 30 Jun 31 Mar 31 Dec 30 Sep 30 Jun 31 Mar Goodwill 1 339.4 1 318.5 1 327.6 1 309.4 1 417.8 1 407.6 1 454.8 Other intangible assets 244.0 237.5 230.0 216.3 216.8 215.6 303.0 Property, plant and equipment 17.4 17.5 17.5 17.7 20.3 21.5 22.3 Right-of-use assets 61.3 63.3 57.5 63.6 68.9 73.6 79.7 Other non-current assets 55.4 53.9 56.6 58.1 69.1 44.3 25.7 Total non-current assets 1 717.5 1 690.7 1 689.3 1 665.2 1 792.8 1 762.6 1 885.4 Trade receivables and other current assets 296.9 306.0 303.0 317.6 335.4 343.5 337.8 Cash and cash equivalents 231.6 301.5 318.4 146.2 160.1 156.8 245.1 Assets held for sale — — 33.7 118.4 — 601.3 624.7 Total current assets 528.5 607.5 655.1 582.2 495.5 1 101.6 1 207.6 Total assets 2 246.0 2 298.2 2 344.4 2 247.4 2 288.3 2 864.2 3 093.0 Total equity 1 075.4 1 088.1 1 067.6 1 083.8 1 038.9 1 000.5 1 103.6 Non-current loans 655.8 654.5 656.7 659.3 670.0 895.4 606.7 Other non-current liabilities 60.9 66.2 64.4 66.0 65.8 72.0 72.3 Total non-current liabilities 716.7 720.7 721.2 725.3 735.8 967.4 679.0 Trade payables and other current liabilities 374.0 436.0 490.8 344.7 432.8 479.7 575.0 Provisions 12.9 17.0 18.7 27.5 34.3 22.4 17.9 Current loans 67.1 36.4 42.0 46.4 46.4 46.8 346.9 Liabilities associated with assets held for sale — — 4.1 19.8 — 347.3 370.7 Total current liabilities 454.0 489.3 555.6 438.3 513.6 896.2 1 310.4 Total equity and liabilities 2 246.0 2 298.2 2 344.4 2 247.4 2 288.3 2 864.2 3 093.0 Statement of cash flows 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Cash flow from operating activities Net profit/loss for the period 40.1 85.1 60.0 43.6 -69.4 -34.3 -80.5 Adjustments 36.7 -16.8 14.9 41.1 181.0 109.7 162.6 Change in net working capital -56.5 -29.4 14.1 29.6 -51.6 4.3 31.2 Cash generated from operating activities before interests and taxes 20.2 38.8 89.1 114.4 60.0 79.7 113.3 Net financial expenses paid -11.9 -13.8 1.3 -6.5 -2.8 -15.9 -11.0 Income taxes paid -5.6 -4.2 -5.6 -5.4 -12.6 -12.5 -4.9 Cash flow from operating activities 2.8 20.8 84.8 102.5 44.7 51.3 97.3 Cash flow from/used in investing activities -14.8 76.8 126.5 -12.5 184.3 -17.3 -19.5 Cash flow used in financing activities -58.0 -118.3 -43.5 -104.0 -232.9 -114.7 -19.2 Change in cash and cash equivalents -69.9 -20.7 167.8 -13.9 -3.8 -80.6 58.7 Cash and cash equivalents at the beginning of period 301.5 318.4 146.4 160.1 164.1 251.8 195.1 Foreign exchange differences 0.1 3.8 4.3 0.2 -0.2 -7.0 -2.0 Change in cash and cash equivalents -69.9 -20.7 167.8 -13.9 -3.8 -80.6 58.7 Cash and cash equivalents at the end of period 231.6 301.5 318.4 146.4 160.1 164.1 251.8 35 | Tieto Corporation Interim Report 3/2026
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Quarterly figures by segments Revenue by segment 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 152.7 171.8 185.2 199.9 187.8 203.1 215.0 Tieto Banktech 133.5 139.1 140.9 137.9 154.1 140.7 136.9 Tieto Caretech 53.9 57.0 57.5 62.6 54.8 58.0 57.3 Tieto Indtech 54.3 65.4 70.7 69.2 63.2 67.0 67.5 Eliminations -4.7 -6.8 -6.1 -5.4 -5.8 -5.7 -6.0 Group total 389.6 426.6 448.3 464.2 454.2 463.1 470.8 In Q1 2026, comparative information for segment revenue, operating profit (EBIT), adjusted operating profit (EBITA), and depreciations was recast to reflect minor changes, between all segments except Tieto Caretech, arising due to structural changes. Group numbers remained unchanged. Operating profit/loss (EBIT) by segment 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 20.2 14.3 39.2 22.1 14.3 13.2 14.1 Tieto Banktech 23.9 21.1 24.3 21.8 35.3 -71.9 4.9 Tieto Caretech 17.8 14.5 14.4 14.6 13.1 13.8 14.1 Tieto Indtech 3.1 67.3 10.8 11.2 6.6 0.5 6.9 Non-allocated costs -8.5 -5.5 -9.1 -10.8 -12.8 -21.6 -13.9 Group total 56.5 111.6 79.6 58.8 56.5 -66.1 26.0 Operating margin (EBIT) by segment 2026 2026 2026 2025 2025 2025 2025 % 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 13.3 8.3 21.2 11.0 7.6 6.5 6.5 Tieto Banktech 17.9 15.1 17.2 15.8 22.9 -51.1 3.6 Tieto Caretech 33.1 25.4 25.0 23.3 23.8 23.7 24.6 Tieto Indtech 5.6 102.9 15.3 16.2 10.5 0.7 10.2 Operating margin (EBIT) 14.5 26.2 17.8 12.7 12.4 -14.3 5.5 Adjusted operating profit (EBITA) by segment 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 23.8 21.8 21.3 27.7 24.6 20.2 26.1 Tieto Banktech 24.1 21.6 24.4 25.2 43.3 14.8 15.4 Tieto Caretech 17.9 14.4 15.0 18.1 17.4 14.1 14.1 Tieto Indtech 9.7 10.6 10.7 11.3 11.9 6.8 8.0 Non-allocated costs -5.2 -5.1 -5.5 -7.2 -9.4 -12.3 -13.7 Group total 70.2 63.4 66.0 75.1 87.8 43.7 49.8 36 | Tieto Corporation Interim Report 3/2026
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Adjusted operating margin (EBITA) by segment 2026 2026 2026 2025 2025 2025 2025 % 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 15.6 12.7 11.5 13.8 13.1 10.0 12.1 Tieto Banktech 18.1 15.6 17.3 18.3 28.1 10.5 11.2 Tieto Caretech 33.1 25.3 26.0 28.9 31.7 24.4 24.7 Tieto Indtech 17.9 16.2 15.1 16.3 18.9 10.2 11.8 Adjusted operating margin (EBITA) 18.0 14.9 14.7 16.2 19.3 9.4 10.6 Depreciation by segment 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 3.3 3.4 3.5 4.3 4.2 4.4 4.4 Tieto Banktech 2.4 2.6 2.6 2.5 2.6 2.9 2.8 Tieto Caretech 1.2 1.3 1.4 1.4 1.3 1.3 1.2 Tieto Indtech 0.7 0.9 1.0 1.1 1.0 1.1 1.2 Group functions 0.8 0.7 1.1 1.3 1.6 1.8 1.8 Group total 8.5 9.0 9.6 10.7 10.6 11.5 11.4 Amortization of other intangible assets by segment 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 0.0 -0.1 0.1 0.0 0.0 0.0 0.0 Tieto Banktech 2.8 2.7 2.6 2.2 2.1 2.8 3.2 Tieto Caretech 0.8 0.8 0.8 0.8 0.8 0.8 0.8 Tieto Indtech 0.3 0.2 0.2 0.1 0.1 0.1 0.0 Group functions 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Group total 3.9 3.6 3.6 3.1 3.0 3.7 4.1 Amortization of acquisition-related intangible assets by segment 2026 2026 2026 2025 2025 2025 2025 EUR million 7–9 4–6 1–3 10–12 7–9 4–6 1–3 Tieto Tech Consulting 0.9 1.0 0.8 2.2 2.8 2.9 2.9 Tieto Banktech 0.5 0.6 0.6 3.4 4.7 4.8 4.8 Tieto Caretech 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Tieto Indtech — — 0.0 0.7 1.1 1.1 1.1 Group functions — — — — — — — Group total 1.5 1.7 1.5 6.3 8.7 8.8 8.8 37 | Tieto Corporation Interim Report 3/2026
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For further information, please contact: Tomi Hyryläinen, Chief Financial Officer, tel. +358 50 555 0363, tomi.hyrylainen (at) tieto.com Tommi Järvenpää, Head of Investor Relations, tel. +358 40 576 0288, tommi.jarvenpaa (at) tieto.com A webcast for analysts and media will be held on 27 October at 10.00 a.m. EET (9.00 a.m. CET, 8.00 a.m. UK time). Endre Rangnes, President and CEO, and Tomi Hyryläinen, CFO, will present the results online in English. The live webcast can be followed via this link:Tieto Q3 webcast or on the company's website. To take part in the questions and answers session after the presentation you will need to dial in by phone. You can access the webcast by registering on this link. After the registration you will be provided phone numbers, user ID and a conference ID to access the conference. The event is recorded and it will be available on demand later during the day. Tieto publishes its financial information in English and Finnish. Tieto Corporation DISTRIBUTION Nasdaq Helsinki Nasdaq Stockholm Principal Media Tieto is a leading software and digital engineering services company with global market reach and capabilities. We provide customers across different industries with mission-critical solutions through our specialized software businesses Tieto Caretech, Tieto Banktech and Tieto Indtech as well as Tieto Tech Consulting business. Our around 13 000 talented vertical software, design, cloud and AI experts are dedicated to empowering our customers to succeed and innovate with latest technology. Tieto’s annual revenue is approximately EUR 2 billion. The company’s shares are traded on the NASDAQ exchange in Helsinki and Stockholm. www.tieto.com Business ID: 0101138-5 Keilalahdentie 2-4 PO Box 2 FI-02101 ESPOO, FINLAND Tel +358 207 2010 Registered office: Espoo E-mail: ir (at) tieto.com www.tieto.com 38 | Tieto Corporation Interim Report 3/2026