Tuff Yen
CEO at Seraph Group
San Mateo, California
Tuff Yen, CEO at Seraph Group is an active investor based in San Mateo, California. This profile covers what Tuff Yen backs, at which stage, and how founders can reach out in 2026.
- Investor type
- AngelVCPEInvestor
- Stages
- Early Stage Venture
- Invests in
- Artificial IntelligenceFintechHealthcare & BiotechDigital Health & HealthTechBiotech & PharmaMedTech & Medical DevicesSaaS & EnterpriseCrypto & Web3
- Location
- San Mateo, California
- Typical check
- $500K
- Past investments
- 36
Notable investments
How to reach Tuff Yen
Angels and operators like Tuff Yen 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 Tuff Yen invest in?
Tuff Yen invests in Artificial Intelligence, Fintech, Healthcare & Biotech and Digital Health & HealthTech, typically at Early Stage Venture. Match your sector and stage, then reach out with a personalized pitch.
How do I contact Tuff Yen?
Unlock Tuff Yen'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.
