U.S. FEDFunding
Harvey raises $550M at $15.5B valuation and buys Guardrails AI
Harvey announced a $550 million funding round at a $15.5 billion valuation on September 9, 2026, co-led by new investors Diffusion and Lightspeed Venture Partners. Existing backers including Sequoia, Kleiner Perkins and a16z participated, alongside new investors Sapphire Ventures and Whale Rock. Harvey also said it acquired San Francisco agent-security startup Guardrails AI, its fourth acquisition of 2026, on undisclosed terms.
Announcement (Harvey) → · Reuters, Artificial Lawyer, Legal IT Insider +1
Key points
- The round values Harvey at $15.5 billion, up from $11 billion in a $200 million round in March.Reuters
- Round co-led by Diffusion and Lightspeed; new investors include Sapphire Ventures and Whale Rock.HarveyReuters
- Harvey acquired Guardrails AI; co-founders Shreya Rajpal and Zayd Simjee join Harvey with their team.ReutersArtificial Lawyer
- Financial terms were not disclosed; the purchase is Harvey's fourth acquisition of 2026.ReutersArtificial Lawyer
- Co-founder Winston Weinberg said annual recurring revenue has crossed $400 million, Non-Billable reported.Non-Billable
- Harvey said the raise follows its post-trained open-weight model and Harvey LAB benchmark launch.HarveyLegal IT Insider
Sources5 articles across 5 outlets · 10 in the cluster
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Harvey
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Non-Billable
Reuters