Climate solutions start where the work happens.
Greentown puts founders next to labs, investors, and first customers — everything it takes to turn breakthrough hardware into deployed infrastructure.
Great tech dies in the gap.
Your science works. But labs cost a fortune, investors don't get hardware timelines, and corporates want a pilot but won't commit. You're building alone, burning cash on problems that aren't technical.
Most climate hardware companies don't die because the tech fails. They die in the gap between lab and market.
Greentown closes the gap.
Labs. Network. Launchpad.
Not a coworking space. Not an accelerator with a Zoom link. A place where physical climate tech gets built, tested, and pushed to market.
We believe in ‘and.’
Most incubators give you space. Greentown gives you a neighborhood. When climate companies cluster — same city, same building — a battery company learns from a materials company, a water startup finds a pilot partner at lunch, an investor sees three deals in one visit.
This isn't philosophy. It's data.
Your tech AND the right people next to you. That's what turns prototypes into infrastructure.
The Greentown network~30%
typical climate hardware survival rate
90%+
inside Greentown
Talk is cheap. Here’s the record.
$X B+
raised by member companies
XXX+
technologies deployed in the real world
XXX+
companies launched
“The partner we met in the hallway became our first customer. No pitch event did that. Proximity did.”
“We needed a lab that could handle molten slag at 1,400 degrees. Greentown had one. That's not something you find on a coworking tour.”
“The investor who led our Series B walked through the lab on a Tuesday. We had a term sheet by Thursday.”
“Greentown didn't just give us space — they put us in front of the exact companies that needed what we were building.”
Pick your lane.
Founders
You need labs, a network, and a real path to your first customer. Not advice.
Founder programsCorporates
See what's next before your competitors. Structured pilots, early access, front-row seat.
PartnershipsInvestors
Climate deals with traction, not just decks. Real facilities, real pilots, real customers.
PortfolioEcosystem Builders
Bring climate innovation to your region. Plug in without rebuilding from scratch.
Greentown nodesTwo hubs. More coming.
Boston
Where it started. Largest climate tech hub in North America. MIT, Harvard, and the region's energy ecosystem at the doorstep.
BostonHouston
Energy capital meets climate tech. If your product needs to plug into heavy industry, this is where you prove it.
HoustonNew locations follow demand, not hype.
The floor is busy.
A running feed of what's actually happening inside Greentown right now — company launches, upcoming events, funding milestones, new partnerships. Updated regularly.
Shop floor, not showroom.
Greentown was built by founders who needed a lab at midnight and didn't have one. That DNA hasn't changed.
People share equipment. Teams share lessons. When someone cracks a supply chain problem, the company next door knows by Friday. Function over form. Results over polish.
We're not building a tech campus. We're getting solutions into the world.
The green revolution will be built by hand.
Thousands of founders. Thousands of products. A system that doesn't exist yet — until they build it.
This is where they come to get it done.