Cees-Willem van Rooij
Partner Tacstone Ventures at Tacstone Ventures
Amsterdam, Netherlands
Cees-Willem van Rooij, Partner Tacstone Ventures at Tacstone Ventures is an active investor based in Amsterdam, Netherlands. This profile covers what Cees-Willem van Rooij backs, at which stage, and how founders can reach out in 2026.
Cees-Willem van Rooij is a Partner at Tacstone Ventures, which focuses on digital strategy, process optimization, and IT.
Cees-Willem van Rooij invests in SaaS & Enterprise, typically at Seed and Series A.
- Investor type
- VC
- Stages
- SeedSeries A
- Invests in
- SaaS & Enterprise
- Location
- Amsterdam, Netherlands
- Typical check
- $625K
How to reach Cees-Willem van Rooij
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Round Funded. "Cees-Willem van Rooij." Round Funded investor database, updated November 3, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/cees-willem-van-rooij
Frequently Asked Questions
Who is Cees-Willem van Rooij?
Cees-Willem van Rooij, Partner Tacstone Ventures at Tacstone Ventures is an active investor based in Amsterdam, Netherlands. Cees-Willem van Rooij invests in SaaS & Enterprise, typically at Seed and Series A.
What does Cees-Willem van Rooij invest in?
Cees-Willem van Rooij invests in SaaS & Enterprise, typically at Seed and Series A. Match your sector and stage, then reach out with a personalized pitch.
What stage does Cees-Willem van Rooij invest at?
Cees-Willem van Rooij typically invests at Seed and Series A. Lead with traction that fits the stage when you reach out.
What is Cees-Willem van Rooij's typical check size?
Cees-Willem van Rooij typically writes checks around $625K. Use it as a signal for whether your raise fits their stage.
How do founders reach investors like this?
Round Funded lists active investors with verified, professional contact details for signed-up founders. Filter by sector, stage and location, then send a personalized pitch from your own inbox.
What is Round Funded?
Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.