Legal Research

#2 rlegaltech500

Thomson Reuters

Multi-product platform — 7 products

Est. 1851 Toronto, Canada Updated 2026-03-11
Unverified by r/legaltech members — this page is based on publicly available information, not hands-on testing or practitioner feedback. Verify your experience with Thomson Reuters

Thomson Reuters is a global company that provides professionals with the intelligence, technology, and human expertise they need to find trusted answers. The company offers a wide range of products and services across various sectors, including legal, tax and accounting, international trade and supply chain, and risk, fraud, and investigations. Thomson Reuters is known for its legal research tools like Westlaw, Practical Law, and advanced generative AI solutions like CoCounsel. In addition, it provides comprehensive tax and accounting software such as ONESOURCE and UltraTax CS. Thomson Reuters also offers media services through Reuters, delivering news and media content worldwide.

Company Info

  • Founded: 1851
  • HQ: Canada
  • Sector: Legal Technology, Tax and Accounting Software

What We Haven’t Verified

This page was assembled from publicly available information. Feature claims and workflow mappings are based on what the vendor and third-party listings publish — not hands-on testing or practitioner feedback.

Platform Products

CoCounsel Legal Research

CoCounsel is Thomson Reuters’ AI legal research assistant, built on the Casetext platform acquired for $650M in 2023. It combines GPT-powered legal AI with Westlaw’s case law database — the first major integration of generative AI into a traditional legal research platform.

Previously known as Casetext, which challenged the legal research market with Parallel Search (AI-powered concept matching) and pricing that undercut Westlaw and LexisNexis. Now bundled with Westlaw as CoCounsel, the standalone pricing advantage is gone, but the AI capabilities have expanded significantly.

What It Does

  • Legal research — AI-powered case law search across 50 states and federal courts
  • Contract review — Automated clause analysis and risk flagging
  • Document review — Concept-based search across document sets (AllSearch)
  • Brief drafting — AI-assisted memo and brief generation
  • Deposition preparation — Automated question generation from case files

Who It’s For

10,000+ organisations from solo practitioners to Am Law 200 firms. Now positioned as the AI layer on top of Westlaw, targeting both existing Thomson Reuters customers and new adopters looking for AI-assisted research.

What We Haven’t Verified

  • Current pricing structure post-acquisition (standalone vs. Westlaw bundle)
  • Accuracy benchmarks for AI-generated legal research vs. manual Westlaw search
  • Whether the original Casetext standalone product remains available
Practical Law Legal Research

Stub entry. Community contributions welcome.

Safe Sign Legal AI

Safe Sign Technologies, founded in 2022, specializes in developing legal-specific large language models (LLMs) tailored for the legal sector. Their AI systems are trained on proprietary legal datasets, emphasizing accuracy, safety, and reliability, and are designed to handle a wide range of legal tasks, including contract negotiation, legal Q&A, and dispute resolution.

Company Info

  • Founded: 2022
  • Team size: 1-10 employees
  • Funding: $250K
  • HQ: United Kingdom
  • Sector: Legal Research

What We Haven’t Verified

This page was assembled from publicly available information. Feature claims and workflow mappings are based on what the vendor and third-party listings publish — not hands-on testing or practitioner feedback.

Thomson Reuters Legal Tracker Other

Stub entry. Community contributions welcome.

Westlaw Legal Research

Stub entry. Community contributions welcome.

Westlaw Edge Other

Stub entry. Community contributions welcome.

Westlaw Legal Calendaring Other

Stub entry. Community contributions welcome.

Community Data

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