Westlaw vs DISCO
Side-by-side comparison of AI visibility scores, market position, and capabilities
Thomson Reuters (NYSE: TRI) Westlaw legal research platform with CoCounsel AI ($650M Casetext acquisition); KeyCite citation analysis competing with LexisNexis and Harvey.ai for attorney AI legal research market leadership.
About
Westlaw is a legal research platform owned by Thomson Reuters (NYSE: TRI) — a Toronto, Canada-based information and professional services company generating $6.8+ billion in annual revenue across legal, financial, and risk intelligence segments — providing attorneys, judges, law students, and legal researchers with the most comprehensive legal research database in the US and internationally, offering access to case law dating to the 1800s, statutes, regulations, administrative law, secondary sources (law review articles, practice guides, treatises), and the KeyCite citation analysis tool that verifies whether a legal precedent remains good law and identifies all citing references. Westlaw is one of the two dominant legal research platforms globally (alongside LexisNexis) with the subscription legal research market generating $5B+ annually from law firms, corporate legal departments, courts, and law schools.
AI-powered legal technology company (NYSE: LAW); FY2025 revenue $157M (+8% YoY); Cecilia AI and Auto Review revenue grew 600%+ in Q4 2025 vs Q4 2024; ediscovery, legal hold, and case management platform founded 2013 in Austin TX.
About
CS Disco, Inc. (DISCO) is a legal technology company founded in 2013 by Kiwi Camara, Kent Radford, Gabe Krambs, and Barry Hagan, headquartered in Austin, Texas. The company develops AI-powered cloud-based legal software for ediscovery, legal hold management, document review, case strategy, and compliance. Core products include DISCO Ediscovery, DISCO Hold, DISCO Case Builder, and the Cecilia AI platform for agentic legal AI.
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