Janneke Niessen

Portfolio Companies 2026 for Janneke Niessen: investors, rounds, and co-investor patterns from StartupFundraising.com research, updated for 2026.

Janneke Niessen covers 5 companies with a founder-verified check from Janneke Niessen, concentrated in Climate, AI Infrastructure, SaaS. Round sizes are not disclosed for these companies, so this report lists the verified positions rather than dollar totals.

Janneke Niessen — verified positions

Janneke Niessen — related firms and companies (56)

Janneke Niessen profile · All research reports