Greentown Labs in Somerville, MA is the largest climatetech accelerator in the world, serving as a launchpad for energy and climate startups driving the clean energy transition. As a world-class incubator, Greentown provides early-stage companies with lab space, coworking areas, machine shops, electronics labs, and business resources—all under one roof. Located just outside Boston, Greentown connects climatetech entrepreneurs with a powerful network of corporate partners, investors, and ecosystem leaders to help scale breakthrough technologies that address the climate crisis.