
Blackletter is a radically new kind of law firm, which integrates elite lawyers with frontier technology. Working only on fixed fees, Blackletter is built to deliver strategic, proactive advice and exceptional outcomes. BlackletterOS, the firm's proprietary legal platform, puts frontier AI to work on every matter, while Blackletter's lawyers own every file and every client relationship. Blackletter was co-founded by Jonathan Rosenbluth, David Stewart and Avi Brudner.
| Date | Amount | Type | Investors | Valuation |
|---|---|---|---|---|
| 11/09/26 | $6,000,000 | Seed |
Aidan Gomez Garage Capital Ivan Zhang Jae Lee Lerer Hippeau Ventures ![]() Maple VC Nick Frosst Ripple Ventures Sara Hooker Seven Stars | undisclosed |