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StoneMill Ventures operates as a venture capital firm, specializing in early-stage investments within the cybersecurity sector. The firm provides capital and strategic guidance to disruptive companies, focusing on innovations that address evolving digital security threats. They actively engage with portfolio companies to foster growth and market penetration, offering more than just financial backing.
Founded in 2018 by Michael Sutton, StoneMill Ventures emerged from Sutton's extensive experience in cybersecurity, notably following the successful initial public offering of Zscaler. His insight recognized the critical need for dedicated early-stage capital and hands-on expertise for burgeoning cybersecurity startups. Sutton leverages his deep industry background to identify promising founders and technologies in this specialized field.
StoneMill Ventures primarily serves seed-stage cybersecurity startups, partnering with founding teams poised to make significant impacts on digital protection. The firm's long-term vision centers on nurturing a robust ecosystem of next-generation security solutions that can adapt to sophisticated threats. By supporting these innovators, StoneMill aims to contribute to a more secure digital landscape for businesses and individuals globally.
StoneMill Ventures has 9 tracked investments across 7 companies. The latest tracked deal is $14.0M Series A in Feroot Security in November 2025.