
If you’re building a company to solve the world’s hardest climate and energy challenges, you shouldn’t have to do it alone. Greentown is where founders find the labs, the community, and the first customers to move faster — and where a win for one startup is a win for all of us.
Climate & Energy Ambition
You’re developing an innovation that boosts efficiency, reduces emissions, promotes smarter use of resources, or otherwise brings us a step closer to a sustainable future. If your work makes the planet more livable and the economy stronger, you belong here!
Ready to Build
Most of our members are developing a prototype and working to enter their market. We typically support founders from early R&D through commercialization.
Community Fit
Innovation is a team sport! The founders who thrive here are ready to become active members of our community: they show up for each other, sharing equipment tips, warm intros, hard-won lessons, and celebrations, all in the name of our shared mission.

Start Your Application
Fill out the form below to begin the membership process. Questions? Reach out to recruitment@greentownlabs.com
Greentown Labs is committed to increasing the diversity of the climatetech ecosystem. We welcome applications regardless of ethnicity, race, gender, religious beliefs, sexual orientation, age, marital status, veteran status, or disability status.