James M Ziemba

Portfolio Co Investors 2026 for James M Ziemba: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.

James M Ziemba covers 16 companies with a founder-verified check from James M Ziemba, concentrated in SaaS, AI Infrastructure, Climate. Round sizes are not disclosed for these companies, so this report lists the verified positions rather than dollar totals.

James M Ziemba — verified positions

James M Ziemba — related firms and companies (56)

James M Ziemba profile · All research reports