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Katie Wallis is an Associate at S3 Ventures, an early-stage venture capital firm. She focuses on identifying and supporting investments in B2B software, fintech, and healthcare technology.
Katie Wallis invests in early-stage companies within B2B software, financial technology (fintech), healthcare technology, and consumer technology sectors as part of the S3 Ventures team.
Katie Wallis works at S3 Ventures, a venture capital firm based in Austin, Texas. She is an Associate on their investment team.
Katie Wallis is an early-stage venture capital investor currently serving as an Associate at S3 Ventures in Austin, Texas. In this role, she manages deal sourcing and due diligence for a firm with over $900 million in assets under management and a portfolio exceeding 50 companies. Promoted from Analyst in early 2025, she evaluates investments across enterprise software, artificial intelligence, and cybersecurity, recently participating in a March 2026 funding round for an AI infrastructure startup. Before joining S3 Ventures, Wallis gained financial modeling experience working in investment banking at Piper Sandler. She holds a Bachelor of Business Administration in Finance from The University of Texas at Austin, graduating from the McCombs School of Business in 2023. Her current focus remains on identifying scalable technology innovations and supporting high-growth enterprise startups within the Texas ecosystem.
Katie Wallis is a key member of the investment team at S3 Ventures, where she holds the position of Associate. Based in Austin, Texas, S3 Ventures is a prominent early-stage venture capital firm dedicated to backing innovative companies that are poised for significant growth. In her capacity as an Associate, Ms. Wallis plays a crucial role in the firm's investment process, from initial deal sourcing and comprehensive due diligence to supporting the strategic development of portfolio companies.
Her primary investment focus areas align with S3 Ventures' core thesis, encompassing high-growth sectors such as B2B software, financial technology (fintech), healthcare technology, and select consumer technology ventures. Katie is deeply involved in researching market trends, evaluating potential investments, and assessing the teams behind promising startups. Her analytical skills and keen eye for innovation are vital in identifying the next generation of industry leaders.
Prior to joining S3 Ventures full-time, Katie Wallis honed her financial acumen as an Investment Banking Analyst at Houlihan Lokey, a global investment bank. This experience provided her with a robust foundation in financial analysis, M&A transactions, and strategic advisory, skills that are directly transferable and highly valuable in the venture capital landscape. She also gained early exposure to the venture capital world through an internship at S3 Ventures, demonstrating her long-standing interest and commitment to supporting entrepreneurial endeavors. Katie is an alumna of the University of Texas at Austin's McCombs School of Business, where she cultivated a strong understanding of business principles and finance.
At S3 Ventures, Katie contributes to the firm's mission of partnering with exceptional founders to build enduring companies. While specific individual investments are often a collaborative effort within the firm, her work is integral to the success of S3's diverse portfolio. She actively engages with founders, providing support and insights that help navigate the challenges of scaling a startup. Her dedication ensures that S3 Ventures continues to identify and nurture companies that are driving innovation and creating substantial market value. Investors and entrepreneurs seeking to connect with a forward-thinking venture capital professional will find Katie Wallis to be an insightful and dedicated resource within the S3 Ventures ecosystem.
