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Q3 Excellent quarter with record-high profitability and orders received Interim Report January–September 2026 Kai Öistämö, President & CEO Heli Lindfors, CFO
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Excellent quarter with record-high profitability and orders received Interim Report January–September 2026 2 Q3/2026 • Excellent third quarter of 2026, with record high order intake, solid net sales growth, and very strong profitability • Industrial Measurements once again performed exceptionally, driving the group’s overall results • Xweather continued to grow steadily • Weather, Energy, and Environment achieved very strong order intake • Guidance updated on October 12: Net sales estimate narrowed to 610–630 MEUR and EBITA estimate raised to 110–120 MEUR 162.9 (154.0) MEUR +6% 24.9% (18.2%) Order book Net sales 164.6 (119.6) MEUR +38% Orders received 215.0 (Dec 31, 2025: 185.8) MEUR +16% October 27, 2026 EBITA%
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Customer focus Innovation & renewal Strong together Integrity MEGATRENDS PURPOSE STRATEGIC PRIORITIES Taking every measure for the planet Instruments and intelligence for climate action Expand and accelerate in industrials Lead in weather across observations and insights Transform with AI SUCCESS DRIVERS Customer understanding and commercial excellence Product and technology leadership Excellence in supply chain Purpose-driven culture and talent VALUES Grow recurring revenue and services Resilient societies Energy transition & decarbonization AI everywhere 3October 27, 2026
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October 27, 2026Interim Report January–September 2026 4 Strong growth across markets and regions, further boosted by AI-related investments in data centers, semiconductors, and power. New product and service launches strengthen the offering for growth markets. New collaborations with industry leaders NVIDIA and CME Group expand the reach and impact of Xweather’s data and AI-driven intelligence. The Atmo acquisition is progressing as planned and is expected to close in Q4. Xweather Leading the future of AI-driven weather insights Weather, Energy and Environment Strengthening global leadership in weather observations The EUR 25 million airport weather modernization project in Indonesia, Vaisala’s largest aviation weather project to date, is entering the implementation phase, with most deliveries expected over the next three years. Industrial Measurements Broad-based growth, boosted by AI-driven investments
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Financials
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Record high order intake, solid net sales growth, and very strong profitability Interim Report January–September 2026 6 119.6 164.6 154.0 162.9 18.2% 24.9% 0 5 10 15 20 25 30 0 20 40 60 80 100 120 140 160 180 Q3/25 Q4/25 Q1/26 Q2/26 Q3/26 Orders received Net sales EBITA% • Orders received increased 38% Y/Y • Order book EUR 215.0 million, 16% above the level at the end of 2025 • Order book for 2026 EUR 103.5 million • ARR EUR 60.9 million, 9% above the level in Q3/2025 • Net sales increased by 6% Y/Y • Gross margin 61.5% (54.4%) % • U.S. tariff refunds, a decreased impact from U.S. tariffs, increased net sales, and a favorable sales mix • EBITA 24.9 (18.2) % of net sales. • ROCE 23,3% in January–September 2026 (18,5% in the comparison period) %MEUR October 27, 2026
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Industrial Measurements: record-high net sales and profitability October 27, 2026Interim Report January–September 2026 7 • Orders received increased by 24% Y/Y • Growth in all market segments and regions, particularly in industrial and power markets • Order book EUR 54.5 million, 30% above the level at the end of 2025 • Increase in large data center and power-related orders and new long-term service contracts has shifted the order book profile • Net sales increased by 28% Y/Y • Driven by strong demand from data center, semiconductor, battery manufacturing, and power industries • Gross margin improved to 65.8 (61.2) % • Net sales growth and favorable sales mix • EBITA% 31.7 (25.6) % • Exceptional EBITA margin driven by strong net sales and improved gross margin 61.5 76.0 60.7 77.8 61.2% 65.8% 40 44 48 52 56 60 64 68 0 10 20 30 40 50 60 70 80 90 Q3/25 Q4/25 Q1/26 Q2/26 Q3/26 Orders received Net sales GM% %MEUR
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Xweather: strong growth Interim Report January–September 2026 8 • Annual recurring revenue EUR 60.9 million, 9% above the level in Q3/2025 • Net sales increased by 9% Y/Y • Driven by the insurance industry and sales to developers and API customers • Gross margin improved to 79.0 (75.5) %, following net sales growth • EBITA% 9.4 (6.9) % • Acquisition of Atmo, Inc., announced in Q2/2026, has progressed as planned, and the transaction is expected to close in Q4/2026 14.4 15.7 75.5% 79.0% 50 55 60 65 70 75 80 85 0 2 4 6 8 10 12 14 16 18 20 Q3/25 Q4/25 Q1/26 Q2/26 Q3/26 Net sales GM% %MEUR October 27, 2026
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Weather, Energy, and Environment: very strong orders received Interim Report January–September 2026 9 58.0 88.6 79.3 70.9 45.6% 46.8% 30 38 46 54 0 20 40 60 80 100 Q3/25 Q4/25 Q1/25 Q2/26 Q3/26 Orders received Net sales GM% • Orders received increased by 53% Y/Y • Supported by the EUR 25 million airport weather project in Indonesia • Order book EUR 160.5 million, 12% above the level at the end of 2025 • Order book for 2026 EUR 66.0 million • Net sales decreased by 11% • Strong comparison period in Q3/2025 with large weather radar deliveries in Europe • Gross margin improved to 46.8 (45.6) % • Favorable sales mix • EBITA% 17.3 (20.2) % %MEUR October 27, 2026
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Strong cash flow Interim Report January–September 2026 10 92.8 117.2 3.7 16 8.4 51.6 57.4 46.6 Q4/25 Result for the period Non-cash items Change in NWC Financial items & taxes Investing activities Financing activities & FX Q3/26 Change in cash (MEUR)• Cash flow from operating activities increased to EUR 84.4 (58.9) million in January–September 2026. • Increased net result, tariffs received, and timing of tax payments • Cash conversion 1.1 in January–September 2026 • Free cash flow ~EUR 76 million in January–September 2026 October 27, 2026
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January–September 2026: 6% net sales growth in constant currencies October 27, 2026Interim Report January–September 2026 11 • Net sales increased by 4% (+6% in constant currencies) • Operating expenses increased by 5% compared to the previous year • Growth-driven costs and investments in Industrial Measurements and Xweather sales and marketing, as well as M&A expenses • Corporate and non-operative items were EUR -2.2 (- 7.2) million (not included in the reportable segments’ figures) • Positively impacted by a total of EUR 4 million in U.S. tariff refunds related to 2025. • High profitability • EBITA% 18.5 (15.7), EBIT% 17.2 (13.9) • U.S tariff refunds, lower tariff levels, increased net sales and a favorable sales mix • Earnings per share increased to EUR 1.58 (1.14) MEUR 1-9/2026 1-9/2025 2025 Net sales 451.4 434.6 596.9 Cost of goods sold -185.7 -194.0 -267.2 Gross profit 265.7 240.6 329.7 Operating expenses 189.5 180.6 -245.3 Other operating income and expenses 1.5 0.5 0.7 Operating result (EBIT) 77.8 60.5 85.1 Share of result in associated company - - 0.2 Financial income and expenses -2.6 -6.7 -8.2 Result before taxes 75.2 53.8 77.1 Income taxes -17.8 -12.3 -17.4 Result for the period 57.4 41.5 59.8
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Strong financial position October 27, 2026Interim Report January–September 2026 12 • Statement of financial position at the end of September 2026 EUR 623.0 million • Low leverage in the balance sheet • Cash and cash equivalents totaled EUR 117.2 million (EUR 92.8 million at the end of 2025) • 2025 dividends (EUR 0.86 per outstanding share) were paid on April 2, 2026 MEUR 1-9/2026 1-9/2025 2025 Equity per share 9.92 8.45 8.99 Return on equity, % 22.3 18.0 18.8 Solvency ratio, % 58.3 52.8 55.7 CAPEX* 8.7 16.0 21.4 Net debt -20.0 38.0 14.3 Gearing, % -5.5 12.4 4.4 * Excluding impact of acquired businesses
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Market and business outlook
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Growth Market outlook for 2026 Interim Report January–September 2026 14 Industrial Life science Power Markets for Xweather subscription sales Stable October 27, 2026 Meteorology Aviation Renewable energyDecline
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Net sales Business outlook for 2026 updated on October 12, 2026 Interim Report January–September 2026 15 Vaisala estimates that its full-year 2026 net sales will be in the range of EUR 610–630 million(earlier EUR 600–630 million) Operating result Vaisala estimates that its full-year 2026 EBITA will be in the range of EUR 110–120 million(earlier EUR 95–110 million) October 27, 2026 The business outlook excludes impacts of the planned Atmo, Inc. acquisition and potential significant changes in market conditions.
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Disclaimer The forward-looking statements in this release are based on the current expectations, known factors, decisions and plans of Vaisala's management. Although the management believes that the expectations reflected in these forward-looking statements are reasonable, there is no assurance that these expectations would prove to be correct. Therefore, the results could differ materially from those implied in the forward-looking statements, due to for example changes in the economic, market and competitive environments, regulatory or other government-related changes, or shifts in exchange rates. Interim Report January–September 2026 16October 27, 2026