S3 Ventures

S3 Ventures is an Austin-based early-stage venture capital firm founded in 2006 that has become a cornerstone of the Texas startup ecosystem. The firm focuses on investing in transformative B2B technology companies, with particular strength in enterprise software, cybersecurity, and fintech. S3's most notable success was its investment in RetailMeNot, which went public in 2013, and Duo Security, which was acquired by Cisco for $2.35 billion in 2018. The firm typically invests in seed and Series A rounds, partnering with entrepreneurs who are building scalable technology solutions for business customers. S3's investment philosophy centers on backing exceptional founding teams with deep domain expertise and large market opportunities. The firm has been instrumental in helping Austin emerge as a major technology hub, leveraging the city's talent pipeline from the University of Texas and growing tech community. What sets S3 apart is its long-standing presence in the Austin market, deep local network, and track record of helping portfolio companies scale from early-stage startups to successful exits.