Greentown Labs | 50,808 followers on LinkedIn. The world's largest climatetech and energy incubator | Greentown Labs is a 501(c)(3) nonprofit accelerating climatetech innovation and commercialization by empowering entrepreneurs and enabling collaboration. As the world's largest climatetech and energy startup incubator—with locations in Somerville, Mass. and Houston, Texas—Greentown convenes the climatetech ecosystem to provide entrepreneurs the community, connections, and resources they need to thrive. Greentown is home to more than 200 startups and has supported more than 600 since its founding in 2011; these startups have collectively created more than 13,500 jobs and raised more than $9.6 billion in funding.