Access curated deal flow from 200+ climatetech startups. Connect with founders. Co-invest alongside leading firms.

Get startup introductions based on stage, industry, and check size. Our Deal Flow Digests surface actively fundraising companies. Investor newsletters keep you current on the opportunities that matter.

One-on-one office hours with startups. Investor-to-investor roundtables for sharing theses and co-investment opportunities. The relationships that move deals forward happen here.

Mentor startups and build relationships before term sheets. Join panels, Sector Pitch Days, and Investor Roundtables. Position your firm at the center of the climatetech conversation.

Addressing early-stage climatetech funding gaps in Houston with a focus on underrepresented founders. Investor education, capital channeling, and ecosystem building with DEI at the core.



Florrent makes ultracapacitors with hemp grown by Black and Indigenous farmers. They met their largest investor through Greentown's Deal Flow Digest.
“The Investor Program has led to so many investor conversations. MassVentures is our biggest investor, and that connection was through Greentown Labs.”
“Florrent has a strong team; they listen well; and their technology is making the right advances. We are grateful to Greentown Labs for bringing them to our attention.”


Elemental Recycling turns plastics and tires into high-purity graphene, graphite, and hydrogen. They raised their Series A after being discovered through the Deal Flow Digest.
“It's amazing how many people found us through the Deal Flow Digest.”
“The Deal Flow Digest allows for an easy filter by maturity and fundraising stage. It's a great reference to stay up to date.”