Circularity Fuels lands $7M seed round

November 10, 2026 |

In California, Circularity Fuels, which earlier this year completed the world’s first end-to-end conversion of raw biogas from dairy manure into sustainable aviation fuel (SAF), announced it has closed a $7 million seed round led by Trucks and DCVC, with participation from Sum Ventures and Automotive Ventures.

The round funds an 18-month push from lab proof to commercial blueprint: Circularity will build and run a demonstration plant that produces jet fuel from biogas every day, complete the engineering design for a 75-barrel-per-day commercial plant and line up the airline fuel contracts needed to break ground. Circularity will also begin licensing the technology behind its Ouro reactor, the electrified core of its fuel-making process, to partners who want to build plants of their own.

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Category: Fuels

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