S3 Ventures is the largest venture capital firm focused on Texas, with over $900 million in assets under management. For more than 20 years, they have partnered with visionary founders, investing in Seed, Series A, and Series B rounds. S3 Ventures is committed to fueling innovation and growth within the Texas technology ecosystem, backing ambitious teams with the potential to become market leaders.
Serves as the central hub for all investment activities, including deal sourcing, due diligence, portfolio company management, fundraising, and operational oversight for S3 Ventures.
Located in a prominent downtown Austin office building, offering modern facilities and providing a strategic presence within the city's dynamic entrepreneurial and financial community.
A dynamic, collaborative, and results-oriented environment focused on identifying and nurturing high-potential startups. The culture emphasizes deep market expertise, strong founder relationships, analytical rigor, and a hands-on approach to supporting portfolio companies.
The Austin headquarters is pivotal as it positions S3 Ventures at the epicenter of Texas's rapidly growing technology and startup ecosystem, facilitating direct engagement with entrepreneurs, innovators, academic institutions, and other investment partners.
S3 Ventures primarily focuses its investment activities and operations within the state of Texas. While their direct physical presence is concentrated in Austin, the firm supports Texas-based portfolio companies that may have national or international operations and market ambitions, thus indirectly extending S3's influence beyond the state.
816 Congress Avenue, Suite 1600
Austin
TX
USA
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As of April 2025, S3 Ventures' leadership includes:
S3 Ventures has been backed by several prominent investors over the years, including:
Over the past year, S3 Ventures has strategically enhanced its team with a key partner hire and an internal promotion to Principal, reflecting its continued growth and commitment to deepening its expertise in the Texas venture capital landscape.
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S3 Ventures, like many professional firms, likely uses a standardized email format for its employees. While not publicly confirmed for all staff, common formats in the venture capital industry include combinations of first name, last name, and initials at their domain 's3vc.com'.
[first_initial][last]@s3vc.com (e.g., jsmith@s3vc.com) or [first].[last]@s3vc.com (e.g., john.smith@s3vc.com)
Format
aperman@s3vc.com
Example
75%
Success rate
PR Newswire • July 13, 2023
S3 Ventures announced it led a $6 million seed funding round for Zenus, an Austin-based company developing ethical AI for crowd analytics. This investment highlights S3 Ventures' ongoing commitment to supporting innovative, early-stage technology companies within Texas....more
PR Newswire • February 27, 2024
Atmosphere, a prominent portfolio company of S3 Ventures, announced it has raised $65 million in a Series D funding round. S3 Ventures has been an early and consistent investor in Atmosphere, supporting its growth into a leading free ad-supported streaming TV service for businesses....more
S3 Ventures / Business Wire • August 9, 2023
S3 Ventures announced the promotion of Kelsi Kamin to Principal. This promotion recognizes her significant contributions to the firm's investment success and her role in supporting portfolio companies, further strengthening S3's leadership team....more
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