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Willem van der Zee

Investor profile

Angel

Willem van der Zee has backed 1 European tech company across 1 funding round in 2025, joining rounds totalling €1.0M. Most active in AI. Data as of Nov 2026.

Deals
1
distinct rounds
Companies
1
backed
Active span
2025
1 yr
Total round €
€1.0M
sum of rounds joined

Deals by year

distinct rounds / year
Willem van der Zee — deals by year — interactive chart.
Data table
Willem van der Zee — deals by year
20251

Top sectors

by deals
Willem van der Zee — top sectors — interactive chart.
Data table
Willem van der Zee — top sectors
AI1

Stages

by deals
Willem van der Zee — stages — interactive chart.
Data table
Willem van der Zee — stages
Other1

Countries

by deals
Willem van der Zee — countries — interactive chart.
Data table
Willem van der Zee — countries
Germany1

Co-investment network

shared rounds
Co-investment network — interactive chart.
Willem van der Zee — 1 dealsWillem van der ZeeSIVentures — 1 shared deals · click to openSIVenturesWolfgang M. Neumann — 1 shared deals · click to openWolfgang M. Neumann

Hover a node for shared-deal counts; click a co-investor to open its profile.

Best viewed on a larger screen.

Frequent co-investors

shared rounds

Portfolio

top 30 by total round €
CompanyCountryRoundsTotal €
OnsaiGermany1€1.0M

Biggest deals

top 10 by amount
CompanyStageAmountDate
OnsaiOther€1.0M2025-08
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