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.
41% of their portfolio is in Fintech. Deal activity decreased year-over-year (1 deal in the last 12 months vs 6 prior). Average disclosed round size is $19.2M (across 74 rounds with reported amounts).
Portfolio
55
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
79 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Verisoul | Series A | $9M | Dec 2025 |
 Inspiren | Series B | $100M | Sep 2025 |
 Alternative Payments | Unknown | $22M | Apr 2025 |
| Inspiren | Series A | $35M | Mar 2025 |
 Twentyeight Health | Series A | — | Jan 2025 |
 First Resonance | Unknown | — | Dec 2024 |
 Yellow Card | Series C | $33M | Oct 2024 |
 Datch | Series A | $15M | Aug 2024 |
 Galleon | Pre-Seed | $1.5M | Apr 2024 |
 ValidMind | Seed | $8.1M | Mar 2024 |
 Sonarverse | Seed | $7M | Mar 2024 |
| JJanuar | 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 |
 Fairplay | Seed | $4.5M | Jan 2023 |
 Paywatch | Growth | $9M | Dec 2022 |
 ImmuneFi | Series A | $24M | Sep 2022 |
| Yellow Card | Series B | $57M | Sep 2022 |
| Kafene | Series B | $18M | Sep 2022 |
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Top Co-Investors
Gaingels13 shared
Valar Ventures11 shared
Lux Capital6 shared
Primary Venture Partners6 shared
Fin Capital6 shared
Story Ventures5 shared
Nevcaut Ventures5 shared
Rosecliff5 shared
Founders Fund5 shared
Camber Creek4 shared
Brookfield Corporation4 shared
Tishman Speyer4 shared
Nyca Partners4 shared
Winklevoss Capital Management4 shared
FJ Labs4 shared
Plug and Play Tech Center4 shared
Company Ventures4 shared
RRE Ventures3 shared
Sequoia Capital3 shared
Polygon Ventures3 shared
Last updated: 20 October 2026