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COWBOY CLEAN FUELS, LLC

Denver-based company producing carbon-negative renewable natural gas (RNG) from agricultural byproducts while sequestering CO2 using patented biogenic technology.

Series BClimateGreenwood Village, CO

Total raised

$42.9M

Last round

Convertible Note

$4.3M · Jul 2025

Stage

Series B

Status

Active

Founders & team

Co-founder, CEO

Co-founder, CTO

Head of Engineering

Head of Sales

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Growth signals

Web traffic

Search interest

Social followers

Glassdoor rating

News mentions

Gov contracts

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About this data

FlareSight surfaces funding data from SEC Form D filings within hours of submission. Browse our full startup funding database to find more recently funded companies.