Ventures
Companies founded, co-founded, and led — a catalogue across thirty years. The medium changes (agencies to data to music to tokens to agents); the mission doesn’t. See also Investments and Speaking.
Spirit Protocol ↗ Founder
Infrastructure where AI agents earn sovereignty through daily practice — identity, memory, self-governance.
SOLIENNE ↗ Co-creator (with Kristi Coronado)
An autonomous artist — daily practice, exhibited at Rented Gaze (Paris) and Fotografiska (Stockholm).
@seth / the fleet ↗ Creator
A personal AI chief of staff and a fleet of agents that route work and govern themselves.
Bright Moments Founder
Generative-art gallery DAO; pioneered live, in-person NFT minting across ten cities.
Finale in Venice, Italy, 2024
LiveAds Founder
Creative studio for next-generation, real-time advertising content.
DJZ / Crossfader Founder
Content platform and mobile app for electronic dance music; Crossfader let anyone remix by tilting a phone.
Turntable.fm ↗ Co-founder, Chairman
Social music — DJ together in virtual rooms. 600,000 users in four months.
$7M raised at a $37M valuation
Stickybits Co-founder
Barcode / augmented-reality platform attaching digital content to physical objects.
Pivoted into Turntable.fm
Pier 38 Founder
San Francisco co-working space; an early home to Instagram, Twilio, and others.
SocialMedia.com Founder, CEO
Social advertising platform — turning display ads into social ads on early Facebook.
AttentionTrust Co-founder
Non-profit advocating that your attention is your property — personal data rights, nineteen years early.
Root Markets Co-founder
Online mortgage exchange and data marketplace (with Lewis Ranieri).
Majestic Research Co-founder, CEO & Chairman
Pioneered “alternative data” for Wall Street, years before the term existed.
Acquired by ITG (~$75M, 2010)
Flatiron Partners First Entrepreneur-in-Residence
Built a pervasive-computing investment practice (with Fred Wilson).
Root.net Founder
A digital concierge — personal assistance through technology.
SiteSpecific Founder
One of the first internet advertising agencies; subject of Harvard Business School’s first internet-marketing case study.
Acquired by CKS Group (~$12M, 1997)
Interactive Multimedia Archive Project Creator
Among the first CD-ROM documentations of a performing artist — Robert Wilson, William Forsythe; artist-in-residence at ZKM, Karlsruhe.