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Our global headquarters is at Greentown Labs is in the Innovation District near downtown Houston.  Greentown Labs is North America’s largest climate tech incubator and opened this location in the energy capital of the world to accelerate the clean energy transition on Earth Day 2021.

Visiting us?  Our campus features a 40,000-square-foot incubator,  offers prototyping lab, office, and community space for up to about 50 climate technology startup companies.

We’re located at 4200 San Jacinto in the old Fiesta building off US59 near the ION. Our office is accessible from both IAH and HOU airports. All visitors should bring identification and expect to sign an NDA upon arrival.

Contact us

  • Our physical address is 4200 San Jacinto Street, Houston, Texas 77004 USA
  • Our mailing address is 2101 Citywest Drive, Houston, Texas 77042 USA.
  • Our office phone number is +1 281-741-5482.  
  • We are open 8:00 AM – 5:00 PM Central Time

How can we help you?

  • Check out our online help.  Help us improve it by using it and suggesting topics.
  • Use the live chat option in the far right corner of your screen.
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  • For member support, feedback, issues or enhancements, submit a ticket.
  • If you are a corporate member looking for your join link, click here. 

5th Annual
GRIT Awards & Best energy workplaces

October 26th, 2021
Online and in person at A.D. Players Theater in Houston