Sebastian Ribbentrop
Founding Partner at JOIN
London, England
Sebastian Ribbentrop, Founding Partner at JOIN is an active investor based in London, England. This profile covers what Sebastian Ribbentrop backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPE
- Stages
- SeedSeries ASeries BLate Stage Venture
- Invests in
- SaaS & EnterpriseHardware & Deep TechRobotics & AutomationPropTech & Real EstateArtificial Intelligence
- Location
- London, England
- Typical check
- $2M
- Past investments
- 23
Notable investments
ProxyclickBorromin Capital Management GmbHDatapredOptics11 - Fiber optic sensing solutionsGenerative Engineering
Prodsmart
OpteranHypercritical
Flexciton
IPRally
beWanted
CodacyHow to reach Sebastian Ribbentrop
Angels and operators like Sebastian Ribbentrop 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.
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About this profile
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Cite this page
Round Funded. "Sebastian Ribbentrop." Round Funded investor database, updated September 24, 2026.
Stable URL, it will not change: https://www.roundfunded.com/en/investor/sebastian-von-ribbentrop
Frequently Asked Questions
What does Sebastian Ribbentrop invest in?
Sebastian Ribbentrop invests in SaaS & Enterprise, Hardware & Deep Tech, Robotics & Automation and PropTech & Real Estate, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
What stage does Sebastian Ribbentrop invest at?
Sebastian Ribbentrop typically invests at Seed, Series A, Series B and Late Stage Venture. Lead with traction that fits the stage when you reach out.
What is Sebastian Ribbentrop's typical check size?
Sebastian Ribbentrop typically writes checks around $2M. 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.