S3 Ventures
Overview
S3 Ventures is the largest venture capital firm focused on Texas. The firm empowers entrepreneurs with patient capital and resources to grow high-impact companies in business technology, digital experiences, and healthcare technology. S3 leads seed, Series A, and Series B investments, ranging from $500K to $10M, with the capacity to invest $20M+ over the life of a company.
Investments
| Company | Date | Stage | Lead |
|---|---|---|---|
| Atmosphere | Feb 2023 | Series D | Lead |
| Vendelux | Jul 2026 | Series B | Co-investor |
| Hydrolix | Apr 2025 | Series C | Co-investor |
| Mythic | Dec 2025 | Series D | Co-investor |
| Sully.ai | Jan 2025 | Series A | Co-investor |
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Key People
Charlie Plauche
General Partner
Aaron Perman
Partner
Eric Engineer
Partner
Sector & Stage Mix
Industry, funding stage, and valuation band breakdowns.
FAQ
Where is S3 Ventures based?
S3 Ventures is headquartered in Austin, Texas, United States.
When was S3 Ventures founded?
S3 Ventures was founded in 2005.
How many portfolio companies does S3 Ventures have?
S3 Ventures has 61 portfolio companies in Caplight's dataset.
What are some companies in S3 Ventures's portfolio?
Portfolio companies visible on Caplight include Atmosphere, Vendelux, Hydrolix, Mythic, Sully.ai.
What was S3 Ventures's most recent investment shown here?
S3 Ventures's most recent investment in this portfolio sample was in Vendelux in 2026.
What sectors does S3 Ventures focus on?
S3 Ventures focuses on Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Enterprise Software, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, Healthcare & Life Sciences, FinTech, Healthcare & Life Sciences, Healthcare & Life Sciences, Cybersecurity, Enterprise Software, FinTech, FinTech, Media, Entertainment & Gaming, Healthcare & Life Sciences, Healthcare & Life Sciences, Enterprise Software, Frontier & Industrial Tech, Healthcare & Life Sciences, AI, Data & Cloud Infrastructure, Enterprise Software, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Media, Entertainment & Gaming, Enterprise Software, Enterprise Software, Enterprise Software, FinTech, FinTech, Cybersecurity, Frontier & Industrial Tech, Enterprise Software, Real Estate & PropTech, Frontier & Industrial Tech, Enterprise Software, AI, Data & Cloud Infrastructure, Cybersecurity, FinTech, AI, Data & Cloud Infrastructure, Healthcare & Life Sciences, Enterprise Software, Enterprise Software, Enterprise Software, FinTech, AI, Data & Cloud Infrastructure, Enterprise Software, Enterprise Software, AI, Data & Cloud Infrastructure, Energy & Sustainability, AI, Data & Cloud Infrastructure, Enterprise Software, AI, Data & Cloud Infrastructure, Healthcare & Life Sciences, Frontier & Industrial Tech, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Frontier & Industrial Tech, Enterprise Software, Real Estate & PropTech, Frontier & Industrial Tech, FinTech, Enterprise Software, Enterprise Software, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Enterprise Software, Enterprise Software, Media, Entertainment & Gaming, Frontier & Industrial Tech, Enterprise Software, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Frontier & Industrial Tech, Cybersecurity, FinTech, Frontier & Industrial Tech, Real Estate & PropTech, Enterprise Software, Enterprise Software, Enterprise Software, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Enterprise Software, AI, Data & Cloud Infrastructure, Enterprise Software, Enterprise Software, Frontier & Industrial Tech, FinTech, Enterprise Software, Frontier & Industrial Tech, Enterprise Software, AI, Data & Cloud Infrastructure, AI, Data & Cloud Infrastructure, Enterprise Software, AI, Data & Cloud Infrastructure, Healthcare & Life Sciences, Enterprise Software, Enterprise Software, Enterprise Software, Frontier & Industrial Tech, Enterprise Software, Enterprise Software, Enterprise Software, Enterprise Software, AI, Data & Cloud Infrastructure, Enterprise Software, Frontier & Industrial Tech, Enterprise Software, Frontier & Industrial Tech.
What company stages does S3 Ventures focus on?
S3 Ventures typically invests at the Early stage.