Skip to main content

Harvey

Category: AI in Legal

An AI-powered platform for legal and professional services that leverages generative AI to automate and enhance legal workflows including drafting, research, contract analysis, due diligence, and compliance. Harvey was founded in 2022. The company is led by Winston Weinberg. Based in San Francisco, USA. Team size: 500+. Total funding raised: $1.21B. Latest round: Series G (Mar 2026). Key investors include ["Sequoia Capital","Kleiner Perkins","GIC","Andreessen Horowitz","OpenAI Startup Fund","Google Ventures (GV)","Coatue"].

Founded
2022
Headquarters
San Francisco, USA
Team size
500+
Total funding
$1.21B

Value proposition

Transforms legal practice by automating routine tasks (drafting, document review, research) while maintaining legal precision, enabling lawyers to focus on high-value strategic work. Reduces time spent on document analysis, improves accuracy, and scales institutional knowledge across organizations.

Products and solutions

["Assistant - AI-powered drafting, analysis, and research with domain-specific capabilities","Vault - Secure document storage, organization, and bulk document analysis","Workflows - Visual builder for custom legal process automation (25,000+ custom workflows created)","Knowledge - Research across 200+ legal knowledge sources spanning 60+ jurisdictions","Agent Builder - Custom AI agents for complex multi-step legal tasks","Shared Spaces - Real-time collaboration platform for firm-client work","Mobile App - iOS/Android app with voice prompting and document scanning","Microsoft 365 Integrations - Deep integration with Word, Outlook, and SharePoint"]

Unique value

First-mover advantage with exclusive early access to OpenAI's GPT-4 (nearly a year before public release), enabling development of custom-trained case law models covering all U.S. case law. Unique combination of legal domain expertise (CEO is former litigator) and AI research leadership (Co-founder from DeepMind/Meta AI). Multi-model architecture supporting OpenAI, Anthropic Claude, and Google Gemini, with proprietary evaluation frameworks for legal accuracy.

Target customer

Leading law firms (AmLaw 100/Global 100), corporate legal departments at Fortune 500 enterprises, and professional services firms requiring sophisticated legal AI capabilities.

Industries served

["Legal Services (Law Firms)","Corporate Legal Departments","Professional Services","Financial Services","Technology","Healthcare & Life Sciences","Energy & Utilities","Telecommunications"]

Technology advantage

Proprietary multi-source reasoning engine that performs iterative, agentic searches across large document sets, combining public legal databases with firm-specific knowledge. Workflow Builder enables law firms to codify institutional knowledge into reusable AI-powered processes. 200K+ daily queries and 1.3M+ files processed daily demonstrate enterprise-grade scalability. Deep integrations with existing legal technology stack (iManage, NetDocuments, LexisNexis) reduce switching costs.

How they differentiate

Exclusive early access to OpenAI's GPT-4 (nearly a year before public release) with custom-trained case law models covering all U.S. case law. Multi-model architecture supporting OpenAI, Anthropic Claude, and Google Gemini with proprietary evaluation frameworks for legal accuracy. Unique founding team combining legal domain expertise (former O'Melveny & Myers litigator) with AI research leadership (ex-DeepMind/Meta). Deep integrations with existing legal technology stack (iManage, NetDocuments, LexisNexis) and Workflow Builder enabling firms to codify institutional knowledge into reusable AI-powered processes.

Main competitors

["Thomson Reuters CoCounsel","Spellbook","Lexis+ AI"]

Key partnerships

["OpenAI - Strategic foundation model partner with custom legal model training program","Microsoft Azure - Infrastructure and go-to-market partner via Azure OpenAI Service","PwC - Strategic alliance providing access to 4,000+ legal professionals across 100+ countries","A&O Shearman - Exclusive launch partner with co-development and revenue-sharing model for custom legal tools","LexisNexis - Content partnership integrating 200+ legal knowledge sources","Harbor Global - Implementation and enablement services partner","60+ AmLaw 100 firms - Early adopter partnerships including Reed Smith, Paul Weiss, and others"]

Notable customers

["A&O Shearman","Paul Weiss","PwC","Comcast","Verizon","KKR","Deutsche Telekom","Gleiss Lutz"]

Major milestones

["Raised $5M seed from OpenAI Startup Fund (Nov 2022) as one of first investments","Series A led by Sequoia Capital for $21M (Apr 2023)","Series B raised $80M at $715M valuation led by Elad Gil and Kleiner Perkins (Dec 2023)","Series C raised $100M at $1.5B valuation led by Google Ventures (Jul 2024)","Series D raised $300M at $3B valuation led by Sequoia Capital (Feb 2025)","Series E raised $300M at $5B valuation co-led by Kleiner Perkins and Coatue (Jun 2025)","Series F raised $160M at $8B valuation led by Andreessen Horowitz (Dec 2025)","Series G raised $200M at $11B valuation co-led by GIC and Sequoia Capital (Mar 2026)","Strategic partnership with PwC for global rollout across 4,000+ legal professionals","A&O Shearman became first law firm to deploy generative AI enterprise-wide using Harvey (2022)","Surpassed $1.2B in total funding raised across all rounds (Mar 2026)","Reached $190M ARR and 1,000+ customers globally (Jan 2026)"]

Growth metrics

Reached $190M ARR by January 2026 (up from $10M in December 2023 and $100M in August 2025). 4x ARR growth in 2024. Expanded from 40 customers in early 2024 to 235 customers in 42 countries by early 2025, then to 1,000+ customers in 60+ countries by 2026. Weekly active users grew 4x year-over-year. 200K+ daily queries and 1.3M+ files processed daily. 60+ AmLaw 100 firms as customers. Named to CNBC Disruptor 50 list (2025) and TIME100 Most Influential Companies.

Market positioning

Premium enterprise-grade legal AI platform targeting large law firms (AmLaw 100/Global 100) and Fortune 500 legal departments. Holds 30.6% mindshare in legal AI market vs. CoCounsel's 9.9%. Higher pricing but more comprehensive capabilities than competitors. Co-development partnerships with leading firms (A&O Shearman, Paul Weiss) creating competitive moats through workflow integration and revenue-sharing arrangements.

Geographic focus

Primarily North America (United States) and Europe (UK), with presence in 60+ countries globally. Key markets include US, UK, and expanding Asia-Pacific presence through strategic partnerships. Customers span 60+ countries with 235 customers across 42 countries as of early 2025, growing to 1,000+ customers globally by 2026.

Patents and IP

No publicly registered patents disclosed as of March 2026. The company's competitive moat is built on proprietary training data, custom model development with OpenAI (10+ billion tokens of legal context), early access to frontier models, and workflow automation IP rather than patented technology.

About Winston Weinberg

Winston Weinberg is the co-founder and CEO of Harvey. Before founding the company in 2022, he was a securities and antitrust litigation associate at O'Melveny & Myers LLP (2021-2022). A former junior lawyer, he leveraged his legal background to identify inefficiencies in legal workflows, leading to the creation of Harvey with his roommate Gabriel Pereyra. He holds a Juris Doctor from USC Gould School of Law (2018-2021) and a Bachelor of Arts from Kenyon College (2013-2017). Under his leadership, Harvey has raised over $1.2B in funding and achieved an $11B valuation as of March 2026.

Official website: