CoCounsel

What CoCounsel does

CoCounsel is Thomson Reuters' AI-powered legal technology portfolio, launched in 2023, that delivers agentic AI-driven legal research, contract review, document analysis, tax research, audit support, and manufacturing compliance solutions. The platform is built on Anthropic Claude technology and is tightly integrated with Thomson Reuters' proprietary legal databases, most notably Westlaw (maintained by over 1,200 full-time attorney-editors) and Practical Law, which together provide the curated, citation-backed content that distinguishes CoCounsel from generic AI tools. Core capabilities include a Deep Research feature that performs multi-step planning and iterative searches with transparent reasoning logs, Contract Policy Compliance with document upload, Knowledge Search with Westlaw integration, jurisdiction-specific tools for Canada and the UK, and an agentic AI architecture that automates multi-step professional workflows.

The product portfolio comprises CoCounsel Legal (the flagship for attorneys and in-house counsel), CoCounsel Tax and CoCounsel Audit (extending the platform to tax and accounting professionals), and ONESOURCE+ (a manufacturing compliance platform powered by CoCounsel). CoCounsel targets corporate legal departments, law firms of various sizes, accounting firms, and manufacturing compliance teams, with primary use cases spanning legal research, contract review, litigation support, multi-state tax compliance, and supplier risk screening. Distribution is anchored by Thomson Reuters' enterprise field sales organization, embedded integration as a standard feature of Westlaw, and cross-selling through the ONESOURCE+ channel.

The business model is subscription-based, priced per attorney seat at approximately $3,000/year for standard enterprise plans, with premium tiers at $1,000+/user/month and annual billing. The go-to-market emphasizes professional-grade features such as verifiable citations, audit trails, and enterprise security, positioning CoCounsel as supporting rather than replacing human expertise. Reported operational metrics include up to 240 hours saved annually per legal professional, 85% of Deep Research users finding more key information than with traditional methods, and ONESOURCE+ delivering 50% reduction in product classification time, 2.5x faster free trade agreement processing, and 92% fewer false positives in supplier risk screening. Note: aggregate firmographic inputs in the source describe a different, smaller San Antonio entity with the same name; the investment analysis above is grounded in the detailed product and corporate information identifying CoCounsel as a Thomson Reuters product.

Name

CoCounsel

Legal name

CoCounsel (AI Legal Product by Thomson Reuters Corporation)

Website

https://cocounsel.co

Company type

Private

Founded year

2023

Operating status

Operating

Headcount range

1–10 employees

Short description

CoCounsel is Thomson Reuters' agentic AI legal technology suite, built on Anthropic Claude and integrated with Westlaw and Practical Law, serving corporate legal departments, law firms, accounting firms, and manufacturing compliance teams with legal research, contract review, tax, and audit tools.

Ownership category

akta.pro rank

Product category

Legal Technology Software

NAICS

Software Publishers (5132)

SIC

Services-Management Services (8741)

akta.pro primary industry

Regulatory Readiness & Audit Automation (e.g., EU AI Act, NIST AI RMF, ISO/IEC 42001) (HDAAAMAE)

Keywords

• Legal AI assistant
• Legal research software
• Contract review automation
• Document analysis platform
• Tax compliance software

Headquarters

HQ city

San Antonio

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Marketing or Sales, Infrastructure, Operations

Revenue model

1. Subscription - Per Attorney License: CoCounsel operates on a subscription model with per-attorney pricing. Enterprise plans are available for law firms and corporate legal departments, typically billed annually.
2. Enterprise Subscriptions: Enterprise-grade subscriptions with higher price points for larger organizations requiring additional features, security, and support.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

CoCounsel is an AI-powered legal technology platform from Thomson Reuters that provides legal research, contract review, document analysis, and compliance workflows for attorneys and corporate legal teams. Built on agentic AI (Anthropic Claude) and integrated with Thomson Reuters' proprietary Westlaw and Practical Law databases, it delivers citation-backed analysis with enterprise-grade security and audit trails. The product suite includes CoCounsel Legal, CoCounsel Tax, CoCounsel Audit, and powers the ONESOURCE+ platform for manufacturing compliance.

Product overview

CoCounsel is Thomson Reuters' AI-powered legal technology portfolio comprising CoCounsel Legal (core product), specialized vertical solutions (CoCounsel Tax, CoCounsel Audit), and the manufacturing-focused ONESOURCE+ platform. CoCounsel Legal serves as the primary AI assistant for legal research and document analysis, integrating with Thomson Reuters' proprietary databases Westlaw and Practical Law. The product line leverages agentic AI and generative AI capabilities to automate complex workflows including contract review, legal research, compliance checking, and tax/accounting research. Key features include Deep Research with multi-step planning, Contract Policy Compliance with document upload, Knowledge Search with Westlaw integration, Companies Search for UK cases, and Concise Answer for rapid research responses.

Differentiator

Problem solved

Functional benefit

Brands

• CoCounsel Legal: AI-powered legal research and document analysis tool designed to streamline contract review for commercial attorneys, integrated with Westlaw and Practical Law databases.
• CoCounsel Tax
• CoCounsel Audit
• Deep Research

Products and services

• CoCounsel Legal AI-powered legal research and document analysis platform from Thomson Reuters that streamlines complex contract review, legal research, and compliance workflows for attorneys and in-house legal teams. Integrates with Westlaw and Practical Law databases.
• CoCounsel Tax Next-generation tax research tool from Thomson Reuters designed to support tax and accounting professionals by preserving analytical context and producing review-ready outputs. Part of the agentic AI evolution in tax tools.
• CoCounsel Audit Audit support tool from Thomson Reuters designed to assist audit professionals by preserving analytical context and producing review-ready outputs. Leverages agentic AI to automate and streamline audit workflows.
• ONESOURCE+ Manufacturing compliance platform powered by CoCounsel AI, offering tax, trade, legal, and risk compliance solutions. Includes product classification, free trade agreement processing, and supplier risk screening capabilities.
• Claims Explorer Advanced AI tool integrated with Westlaw Precision and CoCounsel, offering advanced search, natural language processing, real-time updates, and seamless collaboration for legal research and case management.

Quantifiable outcome

• 85% of users find more key information compared to traditional research methods
• +4 more outcomes

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability7 records

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• Anthropic (Claude)coreTechnology or Integration · 12 May 2026Thomson Reuters has integrated CoCounsel Legal with Claude, Anthropic's AI product. This integration powers CoCounsel's next-generation AI platform capabilities, enabling advanced agentic AI features for complex legal work including multi-step planning and iterative searches.
• WestlawcoreTechnology or IntegrationCoCounsel integrates with Westlaw's curated database maintained by over 1,200 full-time attorney-editors. The Deep Research feature accesses Westlaw content to provide citation-backed analysis. CoCounsel is now standard in Westlaw.
• Practical LawcoreTechnology or IntegrationCoCounsel integrates with Practical Law, Thomson Reuters' legal know-how resource, enabling comprehensive legal research and document capabilities for users.
• ONESOURCE+ (Manufacturing Compliance)coreTechnology or IntegrationThomson Reuters ONESOURCE+ platform is powered by CoCounsel AI for manufacturing-specific tax and trade compliance intelligence, delivering metrics such as 50% reduction in product classification time and 92% fewer false positives in supplier risk screening.

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Emerging players

• Ironclad: Ironclad is a digital contracting platform that has embedded AI throughout the contract lifecycle management workflow, including AI-assisted contract review and redlining for in-house legal teams. It overlaps with CoCounsel's contract review capabilities but is broader in scope as a full CLM platform, making it a partial rather than direct competitor.
• Robin AI: Robin AI is a legal AI assistant for contract drafting and review, combining proprietary models with workflow tooling and offering in-house legal teams faster turnaround on commercial agreements. It targets the same Contract Review/Contract Policy Compliance use case as CoCounsel but with a more focused, self-serve product positioning.
• Eve: Eve is an AI legal platform focused on plaintiff-side personal injury and mass tort law firms, automating demand letter drafting, medical record review, and case chronology. It is an emerging peer because it addresses the same legal-AI value proposition as CoCounsel but targets a narrow plaintiff practice area rather than enterprise defense-side workflows.

Broad incumbents

• LexisNexis (Lexis+ AI / Protégé): LexisNexis is the other dominant legal information services incumbent alongside Thomson Reuters, operating Lexis+ AI and the Protégé AI suite for legal research and drafting. It competes with CoCounsel through overlapping AI legal research capabilities and a comparable enterprise distribution footprint, but as part of a much broader portfolio including news, risk, and compliance data.
• Wolters Kluwer: Wolters Kluwer is a global information services company with a substantial Legal & Regulatory division (including Kluwer Arbitration, VitalLaw, and Practical Compliance products) and embedded AI capabilities. It is a broad incumbent peer because it serves the same legal and tax professional customer base with overlapping research and compliance content, though it is less concentrated in AI legal assistants than Thomson Reuters.
• vLex: vLex is an international legal research platform with Vincent AI, combining case law, legislation, and curated legal content across multiple jurisdictions with AI-driven research and summarization. It is a broad incumbent peer to CoCounsel Legal because both deliver AI-assisted legal research on top of curated legal content libraries, though vLex has deeper international coverage and a different distribution model.

Direct peers

• Luminance: Luminance is an AI legal platform specializing in contract review, due diligence, and compliance for law firms and corporate legal teams, with particular strength in UK and European markets. It directly competes with CoCounsel on AI contract analysis use cases, especially for cross-border and regulated-industry work.
• Spellbook: Spellbook is an AI-powered contract drafting and review assistant built specifically for commercial lawyers, using large language models to redline, suggest clauses, and accelerate contract workflows. It competes directly with CoCounsel's Contract Review and Contract Policy Compliance capabilities on the same in-house and law firm customer base.
• Harvey: Harvey is a venture-backed AI platform purpose-built for elite law firms and corporate legal teams, built on frontier foundation models and positioned as the leading independent legal AI assistant. It directly competes with CoCounsel Legal on the same target customers (law firms and in-house counsel) with overlapping features around legal research, document review, and contract analysis.

Others

• Casetext: Casetext was a leading AI legal research startup (Cocoa/CoCounsel) that Thomson Reuters acquired in 2023, and its technology and team were folded into the CoCounsel product. Listed as OTHERS because it is no longer an independent competitor, but its prior product positioning was a near-perfect overlap with CoCounsel Legal.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about CoCounsel