Keith Hamlin is a Managing Partner at Third Prime, whose known portfolio counts 19 companies.
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Investment focus
Contacts
Affiliated funds' portfolios
Managing Partner at Third Prime, whose known portfolio counts 19 companies
- Chaos Labs
- Monite
- Acctual
- Komi
- CalmWave
- Benable
- Bone
- UnityAI
- Verisoul
- January
- Limited
- Paywatch
- and 7 more
Investor Profile
The listing covers sectors AI, FinTech, Healthcare and Real Estate, and focus areas AI Applications, AI Infrastructure, Credit and Embedded Finance. Startups operating in these areas may find Keith Hamlin relevant.
Stage-wise, the deals at Third Prime cluster around Pre-Seed, Seed and Series A rounds.
The firm portfolio and the focus above give founders context on whether Keith Hamlin matches their raise.
Colleagues at Third Prime
Jeff Adelson-Yan
Venture Partner
New York, United States
Benji Rosenblatt
Vice President
New York, United States
Christian Kaczmarczyk
Principal
New York, United States
Wes Barton
Cofounder and General Partner
Nashville, United States
Keith Hamlin
Cofounder and General Partner
New York, United States
Michael Kim
General Partner
New York, United States
Steve Parker Jr.
Venture Partner
Nashville, United States
Frequently asked questions
Who is Keith Hamlin?
Keith Hamlin is a venture capital investor based in New York, United States, listed as Managing Partner at Third Prime. The known portfolio of that firm counts 19 companies. That portfolio belongs to the firm, not to Keith Hamlin personally.
What does Keith Hamlin invest in?
Listed sectors include AI, FinTech, Healthcare and Real Estate; listed focus areas include AI Applications, AI Infrastructure, Credit and Embedded Finance. Those tags come from the portfolios of the firms this profile is attached to, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Keith Hamlin invest at?
Third Prime appears in Pre-Seed, Seed and Series A rounds across its known deals, and Keith Hamlin is listed there as Managing Partner. Stage is the strongest single filter when you build a target list: an investor with no record at your stage rarely starts with you.
Which firm is Keith Hamlin listed at?
Keith Hamlin is listed as Managing Partner at Third Prime. 7 other people in the database share a firm with Keith Hamlin.
How do I contact Keith Hamlin?
An email address, a phone number and a LinkedIn page are on file for Keith Hamlin. The address stays masked on this page and is readable inside RaiseHunt after you create an account.
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Data: RaiseHunt investor dataset · Snapshot 5 September 2026 · How this data is built · Report a correction or request removal