Jeff Adelson-Yan is an angel investor and operator angel based in New York, United States with one known investment, Gemio.
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Investment focus
- Stage
- Seed
Contacts
Jeff Adelson-Yan portfolio company (1)
- Gemio
Affiliated funds' portfolios
Venture 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 known portfolio sits in sectors Commerce, Consumer, Healthcare and SaaS, and focus areas AdTech, Customer Success, Data Analytics and E-Commerce.
Jeff Adelson-Yan is listed for Seed rounds in the database.
The portfolio and focus above give founders context on whether Jeff Adelson-Yan matches their raise.
Colleagues at Third Prime
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
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Frequently asked questions
Who is Jeff Adelson-Yan?
Jeff Adelson-Yan is an angel investor and operator angel based in New York, United States with one known investment on file, Gemio. The sections above list the sectors, stages and firms attached to that record.
What does Jeff Adelson-Yan invest in?
Listed sectors include Commerce, Consumer, Healthcare and SaaS; listed focus areas include AdTech, Customer Success, Data Analytics and E-Commerce. Those tags come from the companies attached to this profile, so they read as a record of what has been backed rather than a stated preference for what comes next.
What stage does Jeff Adelson-Yan invest at?
The database lists Jeff Adelson-Yan for Seed rounds. 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 Jeff Adelson-Yan listed at?
Jeff Adelson-Yan is listed as Venture Partner at Third Prime. 6 other people in the database share a firm with Jeff Adelson-Yan.
How do I contact Jeff Adelson-Yan?
An email address, a phone number and a LinkedIn page are on file for Jeff Adelson-Yan. 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