Third Prime is an early-stage venture capital firm based in New York and Nashville, founded in 2016. The firm focuses on 'real-economy infrastructure' verticals — fintech, proptech, and crypto/blockchain — backing entrepreneurs at the seed and Series A stages.
38% of their portfolio is in Fintech. Deal activity decreased year-over-year (1 deals in the last 12 months vs 3 prior). Average disclosed round size is $15.1M (across 52 rounds with reported amounts).
Portfolio
46
Fund Size
—
Top Stage
Series A
Last 12 Mo
1
Team
JA
Jeff Adelson-Yan
...
SP
Steve Parker, Jr.
...
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
55 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Inspiren | Series B | $100M | Sep 2025 |
 Alternative Payments | Unknown | $22M | Apr 2025 |
| Inspiren | Series A | $35M | Mar 2025 |
 First Resonance | Unknown | — | Dec 2024 |
 Galleon | Pre-Seed | $1.5M | Apr 2024 |
 Sonarverse | Seed | $7M | Mar 2024 |
| JJanuar ApS | Seed | $1.6M | Feb 2024 |
 Medallion | Series A | $13.7M | Dec 2023 |
 Salt Labs | Seed | $8M | Dec 2023 |
 AbbeyCross | Seed | $6.5M | Dec 2023 |
 Acctual | Seed | $3.9M | Nov 2023 |
 Finerio Connect | Unknown | $6.5M | Oct 2023 |
 Kafene | Series B | $12.6M | Oct 2023 |
 Monite | Seed | $5M | Mar 2023 |
 Finerio | Unknown | $6.5M | Jan 2023 |
 Paywatch | Growth | $9M | Dec 2022 |
 Immunefi | Series A | $24M | Sep 2022 |
| Kafene | Series B | $18M | Sep 2022 |
| AbbeyCross | Pre-Seed | $2.5M | Aug 2022 |
 FairPlay AI | Series A | $10M | Jul 2022 |
| IInflection Points | Series A | $12.6M | Jul 2022 |
 GamerGains | Seed | $5.8M | Apr 2022 |
 January | Series A | $10M | Mar 2022 |
 Valr | Series B | $50M | Mar 2022 |
 LoanStreet | Series B | $25M | Feb 2022 |
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Top Co-Investors
Gaingels7 shared
Valar Ventures5 shared
Fin Capital4 shared
Nyca Partners4 shared
Primary Venture Partners3 shared
Story Ventures3 shared
Nevcaut Ventures3 shared
Rosecliff3 shared
Coinbase Ventures3 shared
CMT Digital3 shared
Winklevoss Capital Management3 shared
Y Combinator3 shared
Plug and Play Tech Center3 shared
Zero Infinity Partners3 shared
Studio VC2 shared
Avenir Growth2 shared
Lightspeed Venture Partners2 shared
Xfund2 shared
Two Sigma Ventures2 shared
Restive Ventures2 shared
Last updated: 8 September 2026