James Ruben
Founder, CEO at Building Something New
San Francisco, California
James Ruben, Founder, CEO at Building Something New is an active investor based in San Francisco, California. This profile covers what James Ruben backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelFounderInvestor
- Stages
- Pre SeedSeed
- Invests in
- Fintech
- Location
- San Francisco, California
- Typical check
- $150K
- Past investments
- 2
Notable investments
How to reach James Ruben
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Frequently Asked Questions
What does James Ruben invest in?
James Ruben invests in Fintech, typically at Pre Seed and Seed. Match your sector and stage, then reach out with a personalized pitch.
How do I contact James Ruben?
Unlock James Ruben's verified email on Round Funded and send a personalized pitch. We surface only deliverable contacts so your outreach lands.
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