S3 Ventures Email Format

Venture Capital and Private Equity PrincipalsTexas, United States11-50 Employees

S3 Ventures is a venture capital and private equity principal firm based in Austin, Texas, founded in 2005. It positions itself as the largest and longest-serving venture capital firm born in Texas with a nationwide investment footprint, concentrating on Business Software and Healthcare Technology. The firm manages over $1 billion in assets and participates in Seed, Series A, and Series B rounds, with initial investments typically from $500,000 to $15 million and the capacity to invest up to $25 million over a company's lifecycle. Its portfolio comprises more than 75 investments that have collectively raised more than $3.5 billion in financing and yielded more than 35 exits valued at over $3 billion.

It operates under a sole-LP structure backed by a philanthropic family foundation, aiming to minimize fundraising distractions and align with founders' needs. It serves founders nationwide, providing patient capital and tangible resources to support growth in high-impact software and healthcare technology companies. In March 2026, S3 Ventures announced a partnership with NJP Ventures to scale its platform.

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