Founders / David J. Stewart
David J. Stewart
David J. Stewart is a co-founder of Blackletter, a legal AI company based in Toronto. David J. Stewart co-founded Blackletter with Jonathan Rosenbluth and Avi Brudner. Blackletter is listed in the portfolio of Ripple Ventures.
Co-founder of Blackletter.
Blackletter
AI-native law firm pairing automated legal work with lawyer judgement.
- Role
- Co-founder
- HQ
- Toronto, ON
- Status
- Active
- Website
- blackletterfirm.com
Co-founders: Jonathan Rosenbluth, Avi Brudner
Investors: Ripple Ventures
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Data as of November 10, 2026.