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S3 Ventures
Austin, TexasWebsite ↗
S3 Ventures is the largest and longest-serving venture capital firm born in Texas, investing nationwide in early-stage technology companies. Backed by a single philanthropic family, the firm provides patient capital and resources to founders in business software and healthcare technology.
Last raised
Dec 2025
8 mo ago
Latest fund size
$250M
Fund VIII
AUM
$1B
estimated
Funds raised
Capital this firm has raised, newest first
Fund VIII
Dec 2025 · Fund VIII
$250M
Fund VII
Mar 2022 · Fund VII
$250M
Fund V
Jan 2013 · Fund V
—
Fund III
Jan 2010 · Fund III
—
First Fund
Jan 2005
$20M
Recent investments
Companies this firm has funded, newest first
| Company | Round | Amount | Date | Source |
|---|---|---|---|---|
| Earlytrade | — | — | Jun 2026 | |
| RepVueLead | Seed | $5M | May 2026 | |
| Civic EagleLead | Series A | $10M | May 2026 | |
| AvtalLead | Series A | $24M | Mar 2026 | |
| InvestSky | Seed | $4M | Feb 2026 | |
| MontyCloud | Series B | $11.4M | Jan 2026 | |
| Mythic | — | $125M | Dec 2025 | |
| Mavvrik | — | — | Aug 2025 |
Sources
Where this data came from