Endeavor Colorado
Cowboy Clean Fuels logo
Climate, Energy & Critical Minerals

Cowboy Clean Fuels

Denver, COEst. 2020Clean & Renewable Energy
Founded
2020
Stage
Series B
Team size
10-30 employees
Sector
Climate, Energy & Critical Minerals

About

Cowboy Clean Fuels produces carbon-negative renewable natural gas using waste agricultural byproducts converted via a biogenic process in deep geologic formations, simultaneously sequestering CO2. Founded by Ryan Waddington, the company closed a $7.5M Series A in 2023 and a ~$13M Series B in 2024.

Funding

Last roundSeries B
Amount raised$13M

Funding detail is compiled from public sources and may lag recent activity.