Thomson Reuters

Corporate history and formation

The origins of Thomson Reuters lie in two distinct historical entities. The Thomson side began in 1934 when Roy Thomson founded a newspaper publishing company in Ontario. Through acquisitions, the business expanded into British media, owning titles like The Scotsman and, later, The Times and The Sunday Times. After exiting national newspapers in the 1980s, the renamed Thomson Corporation pivoted to specialized publishing, acquiring legal information provider West Publishing in 1996. The Reuters side was founded in London in 1851 by Paul Julius Reuter as a business transmitting stock market quotations via telegraph. It grew into a global news agency and financial data provider, going public on the London Stock Exchange in 1984.

The Thomson Corporation acquired Reuters Group plc on April 17, 2008, to form Thomson Reuters. The merger was reviewed by competition authorities in the United States, Europe, and Canada. Regulators required minor divestments of certain financial data products to preserve competition but viewed the remedies as small relative to the combined company's scale. The transaction required a waiver of the Reuters Trust's founding principle that no single interest could own more than 15 percent of the company. The waiver was granted to the Thomson family due to Reuters's financial circumstances at the time, with Woodbridge Company acquiring a majority stake.

Business operations and structure

Thomson Reuters operates as a content-driven technology company serving professionals in specific sectors. Its core divisions focus on legal information and software, the Reuters News Agency, and tax and accounting solutions. Historically, it also had large financial and risk and intellectual property divisions, but these have been spun off or sold. The company's strategy has increasingly centred on integrating artificial intelligence into its professional workflow tools. Its flagship AI assistant for legal professionals, CoCounsel, reached one million users by February 2026. The company also offers an integrated platform called ONESOURCE+ that combines tax, trade, legal, and risk management tools.

The company is led by Chief Executive Officer Steve Hasker and Chairman David Thomson. The Thomson family, through the Woodbridge Company, maintains majority control with a 53 percent ownership stake. Following the 2008 merger, the company operated under a dual-listed structure but unified it in 2009. Its shares trade on the Toronto Stock Exchange and, as of February 25, 2025, on the Nasdaq Global Select Market under the symbol TRI. The company was added to the Nasdaq-100 index in July 2025. For the twelve months leading to October 2026, Thomson Reuters reported revenue of approximately US$7.83 billion and a market capitalization of US$45.4 billion.

Major acquisitions and divestitures

Thomson Reuters has been highly active in reshaping its portfolio through acquisitions and sales. In the years following the 2008 merger, it completed over 200 acquisitions to bolster its offerings in legal, tax, and financial data. Significant purchases have included legal know-how provider Practical Law Company in 2013, tax automation firm SurePrep for US$500 million in 2023, and AI legal technology company Casetext for US$650 million in 2023. The company has also made major divestitures to sharpen its strategic focus. It sold its Intellectual Property and Science division in 2016, which became the independent company Clarivate Analytics. Thomson Reuters retained a 45 percent stake in Refinitiv initially and kept the Reuters news agency. In July 2026, the company agreed to sell a 51 percent stake in its Global Print business to the private equity firm KKR for approximately US$500 million, forming a joint venture. Other sales have included its FindLaw business to Internet Brands in 2024 and its healthcare division, which was sold in 2012 and eventually became part of the company Merative.

Technology and artificial intelligence focus

A central pillar of Thomson Reuters's modern strategy is the development and integration of artificial intelligence into its professional software suites. The company promotes its approach as 'Fiduciary-Grade AI,' emphasizing that its AI tools are grounded in authoritative content and domain expertise to deliver defensible results for professionals. Its CoCounsel AI assistant, launched for legal professionals, is a key product that demonstrated significant user adoption, reaching one million users by early 2026 and easing investor concerns about competitive disruption from other AI tools. In March 2026, Thomson Reuters partnered with Smokeball to integrate CoCounsel into that company's legal practice management software.

The company publishes annual reports, such as The Future of Professionals Report and the AI in Professional Services Report, to analyse trends and the impact of AI on legal, tax, and accounting work. These reports highlight that while AI is becoming embedded in professional workflows, its value depends on effective execution and strategy. Thomson Reuters also offers the ONESOURCE+ platform, which uses AI to connect tax, trade, legal, and risk management functions for corporate teams. The company forecasts continued revenue growth tied to its AI investments, with a 2026 outlook predicting organic revenue growth of 7.5 to 8 percent.

Legal proceedings and market position

Thomson Reuters has been involved in significant legal proceedings related to its core intellectual property. In a notable case, the company sued Ross Intelligence, a legal research startup, for copyright infringement. Ross had used material from Thomson Reuters's Westlaw database, including editorial headnotes, to train a competing AI-assisted research service. In September 2026, the United States Court of Appeals for the Third Circuit ruled in favour of Thomson Reuters, rejecting Ross's fair use defense and upholding the copyrightability of the headnotes. The court distinguished this use of copyrighted material from broader litigation concerning generative AI systems.

The company competes in several professional information markets. Its primary historical competitor in financial data was Bloomberg L.P., though its direct exposure to that market was reduced after the Refinitiv divestiture. In the legal information sector, it competes with various providers and also faces pressure from open-access alternatives. The company's subscription-based models have been contrasted with open data aggregators. Following the 2008 merger, the European Commission also conducted an antitrust investigation into Thomson Reuters's practices regarding its Reuters Instrument Codes (RICs) in market datafeeds. The case was settled in 2012 when the company committed to licensing the codes to competitors for a fee.

Financial performance and shareholder returns

Thomson Reuters has maintained a trajectory of revenue growth, particularly in its core professional segments. For the twelve-month period leading to October 2026, the company reported revenue of US$7.83 billion. Its market capitalization stood at US$45.4 billion at that time. The company provides regular financial updates, issuing quarterly earnings reports that detail performance in its legal, tax, and accounting divisions. For the full year 2026, the company forecasted organic revenue growth in the range of 7.5 to 8 percent, citing the tangible benefits of its investments in artificial intelligence.

The company has a history of returning capital to shareholders. In February 2026, Thomson Reuters announced a plan to return up to US$1.205 billion to shareholders. This can be accomplished through mechanisms like share buybacks or dividends. The company's stock listing moved from the New York Stock Exchange to the Nasdaq Global Select Market in February 2025, and it was added to the Nasdaq-100 index later that year. These financial and strategic moves reflect the company's evolution from a traditional information publisher to a technology-focused provider of professional workflow solutions.

Historical evolution of the Thomson business

The Thomson Corporation's history before the Reuters merger involved significant diversification and strategic shifts. Founder Roy Thomson expanded from a single Ontario newspaper into a major media conglomerate. The company also ventured into unrelated sectors, acquiring Britannia Airways in 1965 and participating in North Sea oil and gas exploration in 1971. Following Roy Thomson's death, the company sold its national newspaper titles to Rupert Murdoch's News International in 1981 and exited broadcast media, marking a decisive turn away from consumer media.

This pivot led the company, then called the International Thomson Organization Ltd, into specialized publishing and information services. A key acquisition was the legal publisher Sweet and Maxwell in 1988. The 1989 merger with Thomson Newspapers formed The Thomson Corporation. The 1996 purchase of West Publishing, a major provider of legal research and the Westlaw service, cemented the company's focus on professional information markets. This foundation in legal and regulatory content set the stage for the later merger with Reuters, which added immense scale in financial data and global news.

The Reuters legacy and integration

Founded by Paul Julius Reuter, the company pioneered the use of telegraphy to transmit stock prices between London and Paris. It established a reputation for speed and accuracy, being the first to report the assassination of President Abraham Lincoln in Europe in 1865. Reuters continued to innovate, developing the use of radio for news transmission in 1923. The company was acquired by the British National and Provincial Press in 1941 before going public on the London Stock Exchange in 1984.

Key launches included the Equities 2000 trading system in 1987, the Dealing 2000 2 conversational dealing system in 1992, and the Reuters 3000 Xtra service in 1999. This period also saw the acquisition of Lipper Analytical in 1998, a provider of mutual fund data. The merger with Thomson was driven by the need for greater scale and technological investment to compete with rivals like Bloomberg. Journalistic concerns about the Thomson family's majority ownership were addressed by guarantees that the Reuters Founders Share Company would retain a veto on matters affecting the Reuters Trust Principles of independence and integrity.

Detailed acquisition strategy (2009 2018)

In the decade following the merger, Thomson Reuters executed a prolific acquisition strategy to build out its capabilities. The company completed over 200 acquisitions between 2008 and 2018 alone. The pace was particularly intense in 2009, with purchases including data mining firm Streamlogics, tick data company Vhayu Technologies, and Deloitte's Abacus corporate tax software. This pattern continued in subsequent years, targeting companies that filled specific gaps in technology or geographic coverage. For example, the 2012 acquisition of Dr Tax brought Canada's largest independent tax software developer into the fold, including the UFile and ImpôtExpert consumer products.

The company's targets spanned multiple domains. In legal technology, it bought Practical Law Company in 2013 for its legal know how tools. In financial data, it acquired firms like FX Alliance Inc for foreign exchange trading services and Pricing Partners for derivatives analytics in 2013. Other notable purchases included MarkMonitor for internet brand protection in 2012, and the trade management company Integration Point in 2018. This aggressive buying spree was financed by the company's strong cash flow and was a deliberate strategy to transform from a content aggregator into a provider of integrated workflow software solutions for professionals.

Questions about Thomson Reuters

Is Thomson Reuters a Canadian company?

Yes, Thomson Reuters is a Canadian multinational corporation. It was formed by the merger of Canada's Thomson Corporation and the UK's Reuters Group in 2008. The company is headquartered at 19 Duncan Street in Toronto, Ontario, and is majority-owned by the Thomson family's Canadian holding company, Woodbridge. Its shares are listed on the Toronto Stock Exchange under the symbol TRI.

What does Thomson Reuters do?

Thomson Reuters provides specialized information, software, and technology solutions to professionals. Its main areas of focus are legal research and practice management tools, tax and accounting automation software, and corporate compliance and trade management. The company also owns the Reuters News Agency, one of the world's largest newsgathering organizations. A growing part of its business involves integrating artificial intelligence, like its CoCounsel assistant, into these professional workflows.

Who owns Thomson Reuters?

Thomson Reuters is a publicly traded company, but it is controlled by the Thomson family of Canada. Their holding company, Woodbridge Company, owns 53 percent of Thomson Reuters shares. This majority ownership required a special waiver of the Reuters Trust's historical rule limiting any single owner to 15 percent. The current chairman is David Thomson, and the chief executive officer is Steve Hasker.

What is CoCounsel?

CoCounsel is Thomson Reuters's artificial intelligence-powered assistant designed for legal and business professionals. Launched as part of the company's push into AI, it is built on what the company calls Fiduciary-Grade AI principles, meaning it is designed to use authoritative content for defensible work. By February 2026, CoCounsel had attracted one million users. In March 2026, Thomson Reuters partnered to integrate CoCounsel into Smokeball's legal practice management software.

Where is Thomson Reuters stock listed?

Thomson Reuters stock is listed on the Toronto Stock Exchange (TSX) and the Nasdaq Global Select Market in the United States, under the ticker symbol TRI. The company moved its U.S. listing from the New York Stock Exchange to Nasdaq in February 2025. Its shares were subsequently added to the Nasdaq-100 index in July 2025. As of October 2026, the company had a market capitalization of approximately US$45.4 billion.

What happened to the financial data business of Thomson Reuters?

Thomson Reuters sold a majority stake in its Financial and Risk division to the Blackstone Group in January 2018. This divested unit was rebranded as Refinitiv, with Thomson Reuters retaining a 45 percent ownership stake. The company continued to supply Reuters news and editorial content to the new joint venture. The transaction was approved by the European Commission on 23 July 2018. This strategic sale allowed Thomson Reuters to focus more resources on its other professional divisions, such as Legal and Tax & Accounting.

Sources: Wikipedia and current public reporting, checked by the Yadude Books desk. Last updated 2026-10-23.