Sigma Prime Ventures

Five Managing Directors — Robert Davoli, Jere Doyle, Paul Flanagan, John Mandile, and John Simon — share the investment committee. The firm operates as a general partnership with no outside limited partners in management, drawing on direct company-building experience across the senior team.

Sigma Prime sources through the operator networks of its Managing Directors, who founded and ran 10 companies collectively. The firm concentrates on the Boston, New York, and Atlanta startup ecosystems — East Coast markets where the partners' personal operating histories and local relationships provide differentiation from West Coast-headquartered funds.

The firm primarily writes direct early-stage checks into technology companies. Its public materials do not describe a fund-of-funds program, secondary purchases, or co-investment vehicles alongside external GPs — positioning it as a direct investor rather than a hybrid allocator.

Sigma Prime invests in early-stage companies, often providing the first institutional capital to startups. The firm's partners' own founder backgrounds lead them to evaluate teams at formation and Seed stages, though they can follow on through later rounds.

The firm does not publish explicit sector exclusions, but its stated focus on SaaS, cloud, mobile, and technology-enabled services suggests it stays away from hard-asset-heavy industries, life sciences, and traditional industrial manufacturing — concentrating instead on enterprise and consumer software models.