Harvey raises $550M Series H at $15.5B valuation for legal AI platform

krisfredrickson · x · 2026-09-09

Legal AI company Harvey raised a $550M Series H at a $15.5B valuation, co-led by Lightspeed and Diffusion Capital. The company has evolved from an AI assistant into a platform handling complex legal work end-to-end, serving 3,000+ organizations including 80% of the Am Law 100 and five of the Fortune 10, targeting the $6T professional services market.

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