Harvey AI Raises $550M Series C+ Led by Lightspeed

Harvey, a San Francisco-based legal AI company, has raised $550 million in Series C+ funding. Lightspeed Venture Partners led the round, which was announced on September 9, 2026, and is denominated in USD.

What Harvey Does

Harvey builds generative-AI tools for law firms and corporate legal teams. Its product spans document analysis, contract review, legal research, and end-to-end workflow agents. The company serves more than 1,000 clients across 60 countries.

Traction and Valuation

Harvey was valued at $8 billion in late 2025. Its client base of over 1,000 organizations across 60 countries makes it one of the more widely adopted legal AI platforms.

Investor Syndicate

The Series C+ round included participation from a broad group of investors:

Lightspeed Venture Partners (lead)
Sapphire Ventures
Andreessen Horowitz
Goldman Sachs Alternatives
Verified Capital
Elad Gil
WndrCo
Evantic
Whale Rock
GIC
Conviction
Coatue
Kleiner Perkins
Sequoia Capital
Diffusion

The syndicate combines venture capital, growth equity, sovereign wealth, and notable individual investors. Existing backers Sequoia, Andreessen Horowitz, Kleiner Perkins, and the OpenAI Startup Fund had previously supported the company.

Round Details

Round type: Series C+
Amount raised: $550,000,000
Currency: USD
Announced date: September 9, 2026
Lead investor: Lightspeed Venture Partners

Why It Matters

Legal AI has become one of the more competitive categories in enterprise software. Harvey's focus on workflow agents and end-to-end legal tasks positions it beyond point solutions for document review. The $550 million raise gives it substantial capital to expand product capabilities and go-to-market reach across its existing 60-country footprint.

For acquisition watchers, Harvey represents a scaled private company in a vertical where incumbents in legal tech, enterprise software, and AI infrastructure may take strategic interest. Its investor list includes several firms with deep enterprise software portfolios, and its valuation places it among the higher-valued private AI application companies.

What to Watch

How Harvey deploys the new capital across product, sales, and international expansion.
Whether the company moves toward an IPO or remains private amid continued late-stage funding.
Competitive dynamics with other legal AI platforms and broader enterprise AI suites.

Harvey's existing backing from Sequoia, Andreessen Horowitz, Kleiner Perkins, and the OpenAI Startup Fund remains part of its investor base.