An operator angel based in Zurich, Switzerland, Stef van Grieken has 2 known investments: Ahead Health and viso.ai.
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Investment focus
- Stage
- Seed
- Sector
- AIHealthcareSaaS
- Focus
- Computer VisionDigital HealthProtein Design
Contacts
Stef van Grieken portfolio companies (2)
- Ahead Health
- viso.ai
Investor Profile
The known portfolio sits in sectors AI, Healthcare and SaaS, and focus areas Computer Vision, Digital Health and Protein Design.
Stef van Grieken appears in Seed rounds across the known deals.
Reviewing the investment history helps decide whether there is a realistic fit before reaching out.
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Frequently asked questions
Who is Stef van Grieken?
Stef van Grieken is an operator angel based in Zurich, Switzerland with 2 known investments on file, among them Ahead Health and viso.ai. The sections above list the sectors and stages attached to that record.
What does Stef van Grieken invest in?
Listed sectors include AI, Healthcare and SaaS; listed focus areas include Computer Vision, Digital Health and Protein Design. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Stef van Grieken invest at?
The known deals of Stef van Grieken include Seed rounds. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
How do I contact Stef van Grieken?
A LinkedIn page is on file for Stef van Grieken. It is readable inside RaiseHunt after you create an account. The database holds no email address and no phone number for this profile.
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Data: RaiseHunt investor dataset · Snapshot 6 September 2026 · How this data is built · Report a correction or request removal