Accelerating the Clean Energy Transition in the Energy Capital of the World
Houston is an energy hub unlike any other, capable of leading the way in renewable energy and the decarbonization of our planet.
Where the Work Happens
4200 San Jacinto Street
30,000 sq ft facility in the Ion Innovation District with prototyping lab, office space, and community and event areas.
Labs and Shops
Prototyping Lab
More than 5,000 sq ft of open-concept lab space for R&D to rapid prototyping, preparing for manufacturing and commercial development.
Machine Shop
Band saws, laser cutter, and the equipment startups need to build their hardware.
Keysight Electronics Lab
Dedicated space for electronics assembly, soldering, testing, and measuring.
Stanley Black & Decker Tool Shop
Tools from the brands Stanley, DEWALT, Irwin, Lenox, and Craftsman.
Outdoor Lab
Available for tests and experiments that benefit from exposure to the elements.
More Than Just Space
We know that climatetech startups need a supportive network of corporate partners, investors, industry experts, and fellow entrepreneurs to succeed, alongside a litany of hardware, software, and professional resources. That's why we work hard to help you forge the connections and get the tools you need.
- Collaborative community of climatetech entrepreneurs
- Introductions to strategic corporate partners
- Investor Program
- Free and discounted software licenses
- Academic and scientific articles
- Manufacturing and supply chain support via FORGE
- Trainings and Lunch + Learns
- CEO network
- Speaker Series
- Industry and market research reports
- Office hours with industry experts
- Marketing and brand promotion
- Community intranet
- Social community events
- Flexible event space
- Phone booths and conference rooms
- Outdoor courtyard
- Shared kitchen
- Bike storage
- Managed mail and receiving
- Loading dock with waste channels
2026 Membership Rates
What Founders Say
“Greentown is in the energy capital of the world and gives unparalleled access to major industry players, other founders I can talk to, and resources including introducing me to investors. Every month, there's an event going on that really helps me connect with all the players in the ecosystem. We have had our most rapid growth after coming to Houston and joining Greentown Labs, in terms of partnership, in terms of deployment. Greentown has supported us in a very important way.”
“We had been looking for the best way to launch a team and hub and then learned about Greentown Labs, and it couldn't have been any better. I've been around climatetech for more than 20 years, and there are a lot of incubators around the country, but I've never experienced one that was the 'real deal' like Greentown Houston is.”
“I've really enjoyed my time as a Greentown member. It's been a lot of fun. I really enjoy the people who are around us and the Greentown team. The lab is great for the stage we are now, which is single-product development. What I've found most useful is the amount of events. I always pop out and I see a bunch of people who I know, from the investor side of things or the customer side of things. I meet new people all the time here.”