Harvey raises $550M at a $15.5B valuation in a round co-led by Diffusion and Lightspeed
- Raised
- $550M
- Valuation · +41% vs Funding round
- $16B
- Lead investors
- Diffusion
- Place in VP50
- #18
What happened
Harvey, the legal AI company, announced on 9 September 2026 that it had raised $550 million at a valuation of $15.5 billion. Diffusion and Lightspeed Venture Partners co-led the round. The company named Diffusion, Lightspeed, Sapphire Ventures and Whale Rock as new investors. Existing investors that took part included Sequoia, Kleiner Perkins, a16z, Coatue, Conviction, Elad Gil, Evantic, GIC, Goldman Sachs Alternatives, Verified Capital and WNDR.
TechCrunch reported that Harvey had raised more than $1.55 billion in total. It said the previous round, announced in March 2026, was $200 million at an $11 billion valuation, and that Harvey did not name the new round. The company said the money would help law firms, in-house legal teams and professional services firms build and own their intelligence at scale, and its co-founders said they planned to hire and develop the best team in the space. The company gave no breakdown of how the funds would be used, and revenue was not disclosed. It said 80% of Am Law 100 firms used Harvey and that it worked with five of the Fortune 10 in-house legal teams.
Key points
- Harvey raised $550M at a $15.5B valuation, announced 9 September 2026.12
- Diffusion and Lightspeed Venture Partners co-led; Sapphire Ventures and Whale Rock joined as new investors.1
- The March 2026 round was $200M at an $11B valuation, per TechCrunch.2
- TechCrunch put total funding at more than $1.55B; revenue was not disclosed.12
- The company said 80% of Am Law 100 firms use Harvey.1
Why it matters
The $15.5B valuation is the latest priced mark for Harvey, set against the $11B reported for the March 2026 round. TechCrunch said the valuation had nearly doubled in about nine months.
Existing backers including Sequoia, Kleiner Perkins, a16z, Coatue and GIC took part alongside new investors Diffusion, Lightspeed, Sapphire Ventures and Whale Rock. That roster is the institutional shareholder base any secondary sale of the stock would sit within.
Harvey said 80% of Am Law 100 firms use it and that it works with five of the Fortune 10 in-house legal teams. These are company statements about adoption; the revenue behind the valuation was not disclosed.
In context
| Round | Date | Post-money valuation | Raised | Led by |
|---|---|---|---|---|
| Series A | Apr 26, 2023 | $150M | $21M | Sequoia Capital |
| Series B | Dec 19, 2023 | $715M | $80M | Elad Gil and Kleiner Perkins |
| Series C | Jul 23, 2024 | $1.5B | $100M | GV (Google Ventures) |
| Series D | Feb 12, 2025 | $3.0B | $300M | Sequoia |
| Series E | Jun 23, 2025 | $5.0B | $300M | Coatue and Kleiner Perkins |
| Funding round | Dec 4, 2025 | $8.0B | $160M | Andreessen Horowitz |
| Funding round | Mar 25, 2026 | $11B | $200M | GIC and Sequoia Capital |
| Funding round | Sep 9, 2026 | $16B | $550M | Diffusion and Lightspeed Venture Partners |
Updated
Fact-check
- Harvey raised $550 million at a $15.5 billion valuation.Stated by [1] Harvey and [2] TechCrunch, both read directly.Verified
- The round was announced on 9 September 2026.[1] Harvey's post is dated Sep 9, 2026, and [2] TechCrunch's article is dated September 9, 2026.Verified
- Diffusion and Lightspeed Venture Partners co-led the round; Sapphire Ventures and Whale Rock were new investors.[1] Harvey names the co-leads and the four new investors; [2] TechCrunch confirms the co-leads.Verified
- The previous round was $200 million at an $11 billion valuation, announced in March 2026.Stated by [2] TechCrunch.Verified
- Harvey has raised more than $1.55 billion in total and nearly doubled its valuation in about nine months.Stated by [2] TechCrunch; [1] Harvey does not give a total.Verified
- 80% of Am Law 100 firms use Harvey, and it works with five of the Fortune 10 in-house legal teams.Stated by [1] Harvey in its own announcement; these are company claims not repeated by [2] TechCrunch.Verified
Sources
- [1]Harvey (opens in a new tab)Harvey Raises $550M at a $15.5B Valuation to Help Legal Teams Own Their Intelligence80% of Am Law 100 law firms use Harvey
- [2]TechCrunch (opens in a new tab)Harvey hits $15.5B valuation, months after reaching $11Bhas raised more than $1.55 billion total and nearly doubled its valuation in about nine months
