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Harvey, the legal AI company, has raised $550m in a funding round that values it at $15.5bn. The company first announced the round on 9 September 2026, and has now sent the announcement to Law Week.
The round
The round was co-led by Diffusion and Lightspeed Venture Partners. New investors are Diffusion, Lightspeed, Sapphire Ventures and Whale Rock. Existing investors Sequoia, Kleiner Perkins, a16z, Coatue, Conviction, Elad Gil, Evantic, GIC, Goldman Sachs Alternatives, Verified Capital and WNDR also took part.
Harvey said the raise followed the release of its first post-trained open-weight model and the launch of Harvey LAB, its Legal Agent Benchmark. It said the money will speed up its work helping law firms, in-house legal teams and professional services firms to build and own their intelligence at scale.
Who uses it
Harvey said 80 percent of Am Law 100 law firms use its platform, alongside many in-house legal teams, including five of the Fortune 10. The announcement does not give revenue, headcount or customer numbers for the UK.
What the founders said
Co-founders Winston Weinberg and Gabe Pereyra said: “The opportunity for companies to accelerate their competitive advantage with AI has never been higher. Harvey wants to be the global partner legal teams turn to for this work, and we plan to hire and develop the best team in the space to support our clients through the next wave of AI transformation.”
Context
The round comes as firms move generative AI from pilots into everyday work, as we reported in firms move generative AI from pilot to everyday practice. Our piece on what legal automation should actually replace looks at where the tools fit.