
S3 Ventures
Largest venture capital firm born in Texas, leading Seed, Series A, and Series B rounds in business software and healthcare technology.
Austin, United States · 64+ investments · 77 portfolio companies
- Headquarters
- Austin, United States
- Founded
- 2005
- Website
- s3vc.com
- AUM
- $1.0B
- Portfolio Companies
- 77
- Total Investments
- 64
- Last Investment
- Aug 2026
- Geographic Focus
- United States
Investment Thesis
S3 Ventures is a Venture Capital firm based in Austin, United States. It has made 64 investments in Healthcare and SaaS, including LibreDigital, Kimbia and Briggo.
Portfolio77















Co-investors24
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24 co-investors across 64 shared portfolio companies — who they back alongside, and how often they lead.
Venture Capital ×20 · Accelerator ×1 · Private Equity ×1 · 35 shared rounds
Investment History
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