
Greentown Boston
100,000 sq. ft. of purpose-built labs including prototyping space, a wet lab, a machine shop, office and event space, and more

We’re the experts on scaling climatetech and energy startups.
That’s a pretty great combination.
Greentown Labs membership gives climatetech startups the community, resources, and connections they need to grow.
Greentown was founded in the spirit of community. Our first four startups worked alongside each other late into the night, sharing equipment, ideas, and encouragement.
Fifteen years and 700+ startups later, members still say the community is their favorite part.
What does it look like in practice?
It looks like helping a fellow member edit a grant proposal, borrowing another startup’s equipment, and sharing investor contacts. It looks like holding a door, striking up a conversation, and swapping ideas with your neighbors. It looks like a vibrant, humming workspace united by a shared mission of creating solutions for the world’s greatest challenges.

“Having the supportive team at Greentown has been the biggest collective resource. Having people really care about the success of your company is unlike anything else.”
We know that building a climatetech company means navigating a lot of different worlds at once: corporate partners, investors, manufacturers, service providers, technical advisors, fellow founders. Those relationships take years to build on your own. At Greentown, they’re already here, and they’re actively looking for startups like yours to work with.
From the corporate partner hosting office hours down the hall, to the advisor who’s scaled a company just like yours, to the manufacturer ready to help you get to pilot, the Greentown ecosystem exists to connect you with the right people at the right moment.

They’re hosting Lunch + Learns, holding office hours, and genuinely eager to meet you. These relationships lead to real outcomes: pilots, R&D partnerships, and customers.
From curated introductions to Deal Flow Digest features to Sector Pitch Days, our investor program is built to help you find the capital you need and navigate the fundraising process with confidence.
We know early-stage founders with lean teams have to wear many hats—and we’ve lined up the experts who can help you navigate it all.
Legal, HR, manufacturing, prototyping software, and business services—curated specifically for early-stage climatetech startups, at discounted or no cost.

100,000 sq. ft. of purpose-built labs including prototyping space, a wet lab, a machine shop, office and event space, and more

Tap into all things innovation in the energy capital of the world, including prototyping space, a machine shop, and community and event space

We host more than 350 members-only events each year, all designed to equip our members with the knowledge, resources, and connections they need to succeed.

“The value has changed over the years, because we started as five people in a backyard. At that time, it was about building the network—I really love the networking events. Then later on, it was about getting in touch with corporate partners, like Sumitomo. Lately, it’s been primarily two things: the Investor Program, which has been very helpful, we’ve had a number of our investors come through the Deal Flow Digest.
And then the second thing is hiring—we get a lot of referrals through Greentown, either through Greentown’s website or people tell me, ‘Oh, I heard about you at Greentown Labs.’ That’s really helpful for me. Finding people who want to work in climatetech can be tricky, and Greentown has a really great ecosystem around it.”
Apply for membership and get access to labs, resources, investors, and a community of founders building the future of climate.