John Yianni
Partner
Berlin, Germany
John Yianni, Partner is an active investor based in Berlin, Germany. This profile covers what John Yianni backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCInvestor
- Stages
- Seed
- Invests in
- MedTech & Medical Devices
- Location
- Berlin, Germany
- Typical check
- $250K
- Past investments
- 1
Notable investments
How to reach John Yianni
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Round Funded. "John Yianni." Round Funded investor database, updated September 9, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/john-yianni
Frequently Asked Questions
What does John Yianni invest in?
John Yianni invests in MedTech & Medical Devices, typically at Seed. Match your sector and stage, then reach out with a personalized pitch.
What stage does John Yianni invest at?
John Yianni typically invests at Seed. Lead with traction that fits the stage when you reach out.
What is John Yianni's typical check size?
John Yianni 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.