S3 Ventures

S3 Ventures is the largest venture capital firm focused on Texas, based in Austin. Founded in 2005 by Brian R. Smith, S3 Ventures has raised over $900 million across seven funds. The firm primarily invests in early-stage companies, ranging from seed to Series B rounds, with initial investments between $500,000 and $10 million and the potential to invest over $20 million throughout a company's lifecycle​ (S3 Ventures)​​ (S3 Ventures)​. S3 Ventures focuses on three main sectors: business technology, digital experiences, and healthcare technology. They aim to back entrepreneurs who are reimagining how the world works, lives, and heals. Some notable investments include Alkami Technology, Favor Delivery, and TVA Medical​. The firm's unique structure is supported by a single philanthropic limited partner, allowing S3 Ventures to provide patient and flexible capital without the typical fundraising distractions faced by traditional VC firms. This model helps them dedicate more resources and time to their portfolio companies, contributing to the success of startups like Alkami Technology and Acessa Health. The team at S3 Ventures includes experienced professionals like General Partner Charlie Plauche and Venture Partner Eric Engineer, who bring diverse backgrounds in investment banking, technology, and entrepreneurship to the firm.