.406 Ventures Email Format
Venture Capital and Private Equity PrincipalsMassachusetts, United States51-200 Employees
Based in Boston, Massachusetts, .406 Ventures is a venture capital firm that concentrates on early-stage investments in healthcare, data and AI, and cybersecurity. It positions itself as a lead or co-lead investor, guiding portfolio companies through the critical early years. Its notable lead investments include AbleTo, Carbon Black, Cloud Health, Health Dialog, Iora Health, Mineral Tree, and Veracode, all of which were acquired by larger technology or healthcare organizations. The firm operates with a midsize team and partners with visionary entrepreneurs to advance innovations in its focus areas. In 2026, it announced a strategic collaboration with Optum to align efforts and improve processes.