Harald Keller
Partner at Wellington Partners
Switzerland
Harald Keller, Partner at Wellington Partners is an active investor based in Switzerland. This profile covers what Harald Keller backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPEFinance Operator
- Stages
- Early Stage VenturePre SeedSeed
- Invests in
- MedTech & Medical Devices
- Location
- Switzerland
- Typical check
- $250K
- Past investments
- 1
Notable investments
UroMemsHow to reach Harald Keller
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Cite this page
Round Funded. "Harald Keller." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/harald-keller
Frequently Asked Questions
What does Harald Keller invest in?
Harald Keller invests in MedTech & Medical Devices, typically at Early Stage Venture, Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does Harald Keller invest at?
Harald Keller typically invests at Early Stage Venture, Pre Seed and Seed. Lead with traction that fits the stage when you reach out.
What is Harald Keller's typical check size?
Harald Keller typically writes checks around $250K. 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.