Artificial Intelligence · Profile from AI Research Companion
Harvey
The San Francisco legal-AI company, founded in 2022 by a litigation associate (Winston Weinberg) and an AI research scientist (Gabe Pereyra), that was seeded by the OpenAI Startup Fund, launched with a firm-wide deployment at Allen & Overy before most lawyers had heard of GPT-4, and became the best-funded application company in professional services. Harvey sells a platform of assistants, document vaults and workflow agents to large law firms, in-house legal teams and professional-services firms under enterprise contracts. It went from a ~$715m valuation (December 2023) to ~$15.5bn (September 2026) in under three years, with annual recurring revenue (ARR) reported at ~$100m (August 2025), ~$190m (end of 2025) and above ~$400m (September 2026, secondary coverage; unconfirmed). Its central strategic questions are whether a "wrapper" on other labs' models can hold a premium against the labs themselves, the legal-content incumbents (Thomson Reuters, LexisNexis) and a fast-moving rival, Legora.
At a glance
- Founded
- Summer 2022, San Francisco, by Winston Weinberg (CEO; formerly a securities and antitrust litigation associate at O'Melveny & Myers) and Gabe Pereyra (president; formerly a research scientist at Google DeepMind and Meta)
- Headquarters
- San Francisco; offices in New York, London and other cities, with Bangalore (2026, reported) and further offices announced (verify list)
- Ownership / structure
- Private. Investors include the OpenAI Startup Fund, Sequoia Capital, Kleiner Perkins, Elad Gil, GV, Coatue, Andreessen Horowitz, Conviction, GIC, Goldman Sachs Alternatives, Lightspeed, Diffusion, Sapphire Ventures and Whale Rock (company and reported)
- Leadership (2026)
- Winston Weinberg (co-founder, CEO); Gabe Pereyra (co-founder, president); Gordon Moodie (chief product officer from July 2023, formerly a Wachtell, Lipton, Rosen & Katz corporate partner; verify current title)
- AI products
- Assistant (research, drafting, Q&A); Vault (bulk document review and analysis); Knowledge (research over legal sources, incl. LexisNexis content from 2025); Workflows and Agents; Spaces; Contract Intelligence; Horizon Scanning; Intake, Connector Library and Legal Work Orchestration (new, September 2026); Tenet, a legal model post-trained on Moonshot's open-weight Kimi K3 (research preview, August 2026)
- Scale
- 82 employees (March 2024, reported); ARR ~$100m (August 2025, company); ~$190m (end of 2025, reported); ~$300m (May 2026, Sacra estimate); above ~$400m (September 2026, secondary coverage; unconfirmed by the company); customers ~1,300 → >3,000 over 2026 (reported, verify); used by ~80% of the Am Law 100 and five of the Fortune 10 (company, September 2026)
- Capital raised
- ~$1.7bn across nine rounds (sum of reported rounds): $5m seed led by the OpenAI Startup Fund (November 2022); ~$21–23m Series A led by Sequoia (April 2023; sources differ); $80m Series B at $715m (December 2023); $100m Series C at $1.5bn led by GV (July 2024); $300m Series D at $3bn (February 2025); $300m Series E at ~$5bn (June 2025); $160m at ~$8bn led by a16z (December 2025); $200m at $11bn (March 2026); $550m at $15.5bn (9 September 2026)
- Key partnerships
- OpenAI (seed investor, early GPT-4 access, model supplier); Microsoft Azure (hosting, 2024); Anthropic and Google models via AWS Bedrock and Google Vertex (May 2025); LexisNexis (content and Shepard's Citations alliance, June 2025); Fireworks AI (Tenet post-training, 2026); A&O Shearman, PwC and many large firms as launch customers
- Signature moves (incl. failures)
- Founding and the OpenAI Startup Fund seed (2022); Allen & Overy and PwC as launch customers (2023); the Sequoia and Kleiner rounds and the "mystery" years (2023); the GV Series C and the Azure platform (2024); going multi-model beyond OpenAI (2025); the LexisNexis alliance (2025); the Reddit usage controversy and the valuation ramp (2025); the 2026 acquisition spree; Tenet on Kimi K3 (2026); the $15.5bn round and the Legora race (2026)
10 strategic moves analysed
Each one gets a full strategy file in the companion: context, the decision, the financing, what happened, and the lesson.
2022
Founding and the OpenAI Startup Fund Seed
Founding / funding round
2023
Allen and Overy and PwC Launch Customers
Launch / customer win
2023
Sequoia and Kleiner Rounds and the Quiet Years
Funding round
2024
GV Series C and the Azure Platform
Funding round / launch
2025
LexisNexis Alliance
Partnership
2025
Multi Model Shift Beyond OpenAI
Partnership / supplier change
2025
Reddit Usage Controversy and the Valuation Ramp
Funding rounds / controversy
2026
15 5bn Round and the Legora Race
Funding round / competition
2026
Acquisition Spree
Acquisition
2026
Tenet on Kimi K3 and the Own Model Question
Model release (research preview)