Michael O Brien

Portfolio Companies 2026 for Michael O Brien: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.

Michael O Brien covers 8 companies with a founder-verified check from Michael O Brien, concentrated in SaaS, Fintech, Cybersecurity. Round sizes are not disclosed for these companies, so this report lists the verified positions rather than dollar totals.

Michael O Brien — verified positions

Michael O'Brien — related firms and companies (56)

Michael O'Brien profile · All research reports