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
Angels and operators like Harald Keller reply to specific, personalized notes that show real traction, not mass blasts. Build a verified list, write a note that fits their thesis, and track replies, all on Round Funded Accelerator.
Connect with 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 I contact Harald Keller?
Unlock Harald Keller's verified email on Round Funded Accelerator and send a personalized pitch. We surface only deliverable contacts so your outreach lands.