3 Founders Backed by Joseph Rothman (2026)

Joseph Rothman founders (3)

Joseph Rothman founders covers 3 founders on Canary, CoPromote and Rockerbox. The most common sectors are Consumer Social (1), Media (1) and SaaS (1). Every founder below links to a profile with their company, backers, and the filings behind each round.

• Founders listed: 3
• Companies represented: 3
• Top sector: Consumer Social (1 founders)
• Top location: New York, NY (3 founders)
• Sectors represented: 3

• Charles Fraenkl — Canary
• Jamie Cullinane — CoPromote
• Patrick O'Toole — Rockerbox

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• Joseph Rothman · New York, NY (3 founders)

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