Greentown Labs
Renewable Energy Semiconductor ManufacturingMassachusetts, United States51-200 Employees
Greentown Labs is a nonprofit organization dedicated to accelerating climatetech innovation by offering startups access to labs, equipment, customers, capital, talent, community, and leadership resources. It positions itself as the world's largest climatetech and energy startup incubator, hosting over 250 startups and supporting more than 675 since its founding in 2011, with a reported 88 percent survival rate. Based in Somerville, Massachusetts, the organization functions as a mid-sized nonprofit focused on ecosystem-building for climate-focused entrepreneurship. Its customers are climate tech and energy startups seeking an integrated environment to develop their technologies and connect with potential customers and partners. In 2026 the organization announced Go Make 2026 in collaboration with Shell Catalysts & Technologies and Technip Energies, illustrating active collaboration with major industry players to advance industrial decarbonization.