Portfolio Companies 2026 for Mark B Fitzsimmons: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.
Mark B Fitzsimmons covers 16 companies with a founder-verified check from Mark B Fitzsimmons, concentrated in Fintech, Biotech, SaaS. Round sizes are not disclosed for these companies, so this report lists the verified positions rather than dollar totals.