Harvey reaches $100m ARR - nearly half of top 100 US firms use the platform

Legal AI startup Harvey has hit $100 million in annual recurring revenue just three years after launch.
The platform is now used by 42% of the top 100 US firms and has more than 500 customers in 54 countries.
Legal AI startup Harvey has reached $100 million in annual recurring revenue (ARR) just three years after launch, underscoring its rapid ascent as one of the most prominent players in the post‑ChatGPT legal tech boom.
Founded by former Big Law lawyer Winston Weinberg and ex‑DeepMind research scientist Gabe Pereyra, Harvey marked its third birthday with an update also revealing it now serves more than 500 customers in 54 countries, including 42% of the top 100 US law firms by revenue. Weekly active users have quadrupled over the past year, and the company has grown to 350 employees worldwide.
Harvey has raised more than $700 million in funding, including a $300 million round in June that valued it at $5 billion. That same month it announced a high‑profile partnership with legal research giant LexisNexis - a strategic move to marry Harvey’s AI productivity tools with one of the legal sector’s most extensive content libraries.
In an increasingly competitive market, where rivals such as European‑founded Legora are also vying to become the go‑to general legal AI platform, access to proprietary data could prove to be a crucial differentiator.
Recent product updates for Harvey include "Deep Research" (think ChatGPT's deep research mode but for legal), alongside expanded access to data sources in eight new markets. The company is hiring across its core hubs of San Francisco, New York and London, and is expanding into Sydney, Frankfurt and Bengaluru.
What they said
Weinberg and Pereyra said they want Harvey to be "the platform of choice for law firms and Fortune 500 companies alike", adding "we’ve never been more bullish on the future of Harvey".
Join 10,000+ City law professionals who start their day with our newsletter.
The essential read for commercially aware lawyers.