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THOMSON REUTERS NEWS RELEASE Exhibit 99.1 Thomson Reuters Reports Third - Quarter 2021 Results TORONTO , November 2 , 2021 - Thomson Reuters ( TSX / NYSE : TRI ) today reported results for the third quarter ended September 30 , 2021 : • Total company revenue up 6 % / organic revenue up 5 % • • • 0 Revenue for four of five business segments grew 6 % organically Raised full - year 2021 revenue guidance 0 Total company revenue forecast increased to 4.5 % -5.0 % from 4.0 % - 4.5 % " Big 3 " segments revenue forecast increased to approximately 6.0 % from 5.5 % - 6.0 % Raised full - year 2021 free cash flow guidance to approximately $ 1.2 billion from $ 1.1 - $ 1.2 billion Reaffirmed full - year 2022 and 2023 guidance , with minor adjustments to 2022 Change Program spend Change Program on track - achieved $ 132 million run - rate operating expense savings through September 30 Repurchased $ 1.1 billion of company shares under $ 1.2 billion buyback program through October 31 " The momentum we saw in the first half of the year continued into the third quarter with revenue and sales performance above our expectations and consistent across the business . This strong performance reflects how our products fit the needs of our customers , enabling them to better serve their own clients in a rapidly changing workplace . It also demonstrates our leading positions in healthy and growing markets . Based on our strong financial performance and our confidence in the trajectory of the business for the remainder of the year , we have again increased our full - year 2021 revenue guidance , " said Steve Hasker , president and CEO of Thomson Reuters . Mr. Hasker added , " While the third quarter was another strong one , we still have a lot to achieve . We are focused on building a leading content - driven technology company , and our talented teams continue to work ambitiously towards that goal . I am very pleased with our achievements to date and believe we are well positioned to build on this progress in 2022. " Consolidated Financial Highlights - Three Months Ended September 30 Three Months Ended September 30 , ( Millions of U.S. dollars , except for adjusted EBITDA margin and EPS ) ( unaudited ) IFRS Financial Measures ( ¹ ) Revenues Operating profit Diluted ( loss ) earnings per share ( EPS ) Net cash provided by operating activities Non - IFRS Financial Measures ( ¹ ) Revenues Adjusted EBITDA Adjusted EBITDA margin Adjusted EPS Free cash flow 2021 2020 Change Change at Constant Currency $ 1,526 $ 1,443 $ 282 $ 318 6 % -11 % $ ( 0.49 ) $ 0.48 n / m $ 534 $ 581 -9 % $ 1,526 $ 458 30.0 % $ 0.46 $ 1,443 $ 491 6 % 5 % -7 % -7 % 34.0 % -400bp -410bp $ 0.39 18 % 15 % $ 383 $ 541 -30 % ( 1 ) In addition to results reported in accordance with International Financial Reporting Standards ( IFRS ) , the company uses certain non - IFRS financial measures as supplemental indicators of its operating performance and financial position . These and other non - IFRS financial measures are defined and reconciled to the most directly comparable IFRS measures in the tables appended to this news release . n / m : not meaningful