About

Thomson Reuters is a provider of professional information and software serving legal, tax, accounting, trade, risk, and government customers. The company's platform addresses the core problem facing these professionals: completing research, drafting, compliance, and investigation work accurately while handling growing volumes of information and regulation.

At the center of the portfolio is CoCounsel, an AI assistant the company describes as "Fiduciary-Grade AI," which the site says is used by 1 million professionals globally. CoCounsel draws on trusted content sources such as Westlaw legal research and Practical Law guidance, so outputs are grounded in established editorial material rather than open-web data. Founded from the merger of the Thomson and Reuters businesses and headquartered in Toronto, the company also publishes news and research such as its Future of Professionals report.

Key Features

CoCounsel Legal: Combines legal research, analysis, and drafting in one AI workspace built on Westlaw and Practical Law content maintained by more than 650 attorney-editors.

Westlaw: Legal research software supported by roughly 150 years of accumulated editorial expertise, with Westlaw Edge and Westlaw Advantage tiers adding AI-assisted search and verified answers.

CoCounsel Tax and ONESOURCE: Covers tax research, corporate income tax filing, indirect tax (VAT, GST, sales tax) compliance, tax provision, and global e-invoicing through products like ONESOURCE Determination and ONESOURCE Pagero.

Global trade compliance: ONESOURCE Global Classification automates product classification for imports and exports, and Foreign Trade Zone Management centralizes supply-chain data for duty savings.

Risk, fraud, and investigation tools: CLEAR Investigate supports due diligence, continuous monitoring, fraud detection, and collections and recovery workflows.

Matter and workflow management: HighQ provides secure collaboration and automated legal workflows, while Legal Tracker helps corporate legal departments manage matters and reduce outside counsel spend.

Audit and accounting AI: CoCounsel Audit & Accounting standardizes audit workflows, and Ready to Review automates 1040 return preparation for tax firms.

Pricing & Fees

Pricing: Not publicly listed on the pages we reviewed; check the official site for current plans. Thomson Reuters sells through a sales team with configuration tailored to organization size and needs.
Scale of adoption: The company states CoCounsel is chosen by 1 million users globally.
Evidence of results: Published case studies include Justly Prudent reporting five times ROI and doubled litigation capacity, and Harris, Hardy & Johnstone reducing hour-long document reviews to minutes.
Audience coverage: Separate offerings serve law firms, corporate legal departments, tax and accounting firms, businesses, and government users including prosecutors, public defenders, courts, and law enforcement.
Recognition: Thomson Reuters is named a Leader in the 2026 IDC MarketScape for e-invoicing, according to its site.

Who It's For

Thomson Reuters serves professionals in regulated and information-intensive fields. Primary users include attorneys at law firms and corporate legal departments who need research, drafting, and matter management; tax and accounting professionals handling corporate, indirect, and individual returns; trade and supply chain teams managing customs classification and cross-border compliance; and risk, fraud, and investigations specialists conducting due diligence and monitoring. Government audiences such as prosecutors, public defenders, courts, and city attorneys are also addressed with dedicated offerings, as are C-suite roles including general counsel, CFOs, and chief risk officers.

FAQ

What is Thomson Reuters?Thomson Reuters is a provider of professional software, content, and AI tools for legal, tax, trade compliance, risk, and fraud professionals, with flagship products including CoCounsel, Westlaw, Practical Law, and the ONESOURCE suite.

What is CoCounsel?CoCounsel is Thomson Reuters' professional AI assistant, offered in editions such as CoCounsel Legal, CoCounsel Tax, and CoCounsel Audit & Accounting, designed to produce citation-backed work grounded in trusted editorial content.

How much does Thomson Reuters software cost?Pricing is not publicly listed on the pages reviewed; prospective customers contact the sales team for quotes based on their products and deployment needs.

Does Thomson Reuters serve government users?Yes, the company offers solutions for law enforcement, prosecutors, public defenders, city attorneys, and courts, alongside its commercial offerings.

Can Thomson Reuters tools help with international trade compliance?Yes, ONESOURCE Global Classification automates import and export product classification, and related ONESOURCE products handle customs management, e-invoicing, and cross-border tax compliance.

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Key Features

Pricing & Fees

Who It's For

FAQ

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