SixThirty Ventures is a global venture capital firm based in St. Louis that invests in early-stage companies at the intersection of finance, health, and privacy. The firm connects startups with corporate partners across financial services, insurance, and healthcare to help bring their ideas to market.
30% of their portfolio is in Fintech. Deal activity decreased year-over-year (3 deals in the last 12 months vs 7 prior). Average disclosed round size is $15.4M (across 61 rounds with reported amounts).
Portfolio
48
Fund Size
$66M
Top Stage
Seed
Last 12 Mo
3
Team
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
67 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Diameter Pay | Series A | $10M | Jan 2026 |
 Angle Health | Series B | $134M | Dec 2025 |
| AAnglehealth | Seed | $4M | Dec 2025 |
 Aiprise | Series A | $12.5M | Oct 2025 |
 Daylit | Unknown | $110M | Sep 2025 |
 hypt | Seed | — | Sep 2025 |
 Particula | Pre-Seed | $5.5M | Apr 2025 |
| PParticula | Pre-Seed | $5.5M | Apr 2025 |
 Particula | Unknown | $5.5M | Apr 2025 |
 NvisionX | Seed | $4.6M | Jan 2025 |
| Particula | Pre-Seed | $5.5M | Jan 2025 |
| Aiprise | Series A | $12.5M | Jan 2025 |
| Particula | Unknown | $5.5M | Jan 2025 |
 Diesta | Seed | $3.8M | Oct 2024 |
 Armilla AI | Seed | $4.5M | Feb 2024 |
 Armilla AI | Seed | $4.5M | Feb 2024 |
 Osyte | Seed | $4M | Jan 2024 |
 PayGround | Series A | $19.7M | Nov 2023 |
 Accelex | Series A | $15M | Nov 2023 |
 CipherStash | Seed | $3M | Oct 2023 |
 Sandbox | Seed | $4.3M | Feb 2023 |
| Angle Health | Series A | $58M | Jan 2023 |
| CipherStash | Unknown | $3M | Jan 2023 |
 CoverGo | Series A | $15M | May 2022 |
 Pendella | Seed | $5.2M | Mar 2022 |
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Top Co-Investors
Plug and Play Tech Center12 shared
Y Combinator10 shared
Portage Ventures7 shared
Blumberg Capital6 shared
BlackWood6 shared
Correlation Ventures5 shared
Mighty Capital5 shared
TSVC5 shared
Tenity5 shared
Futury Capital5 shared
Vanagon Ventures5 shared
Aflac Ventures5 shared
Fin Capital4 shared
Crew Capital4 shared
Wing Venture Capital4 shared
PruVen Capital4 shared
Companyon Ventures4 shared
Headline3 shared
Mindset Ventures3 shared
Gaingels3 shared
Last updated: 20 October 2026