Alex Kleiner
Partner at Rubicon Technology Partners
New Haven, Connecticut
Alex Kleiner, Partner at Rubicon Technology Partners is an active investor based in New Haven, Connecticut. This profile covers what Alex Kleiner backs, at which stage, and how founders can reach out in 2026.
- Investor type
- VCPE
- Stages
- SeedSeries ASeries BLate Stage Venture
- Invests in
- FintechPaymentsSaaS & EnterpriseConsumer & RetailE-commerce & D2CClimate & EnergyDeveloper Tools & DataHardware & Deep Tech
- Location
- New Haven, Connecticut
- Typical check
- $2M
- Past investments
- 9
Notable investments
How to reach Alex Kleiner
Angels and operators like Alex Kleiner 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.
Frequently Asked Questions
What does Alex Kleiner invest in?
Alex Kleiner invests in Fintech, Payments, SaaS & Enterprise and Consumer & Retail, typically at Seed, Series A, Series B and Late Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
How do I contact Alex Kleiner?
Unlock Alex Kleiner's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
Similar investors
Browse all investorsIs this you? Email team@roundfunded.com to update or remove your profile.
