Circularity Fuels

Circularity Fuels builds AI-controlled, mass-manufacturable reactors that turn waste carbon and cheap renewable power into drop-in hydrocarbons, starting with affordable sustainable aviation fuel.

Circularity Fuels secures $7 million in seed funding to advance its renewable fuels technology platform. The company, based in Redwood City, California, develops solutions aimed at sustainable energy production.

Nov 2026FinSMEsNews article

Circularity reduces costs for producing sustainable aviation fuel (SAF) using bio-methane derived from dairy farm manure. Dairy farms generate methane from stored cow waste in sealed digesters, converting it into biogas and fertilizer. The technology captures methane—otherwise released or flared—enabling its use as a low-carbon aviation fuel feedstock.

Jun 2026CleanTechnicaNews article

Developers of sustainable aviation fuel (SAF) are expanding feedstock sources to include landfills, wastewater treatment plants, and dairy farms to meet growing demand. The SAF market is projected to reach $66 billion by 2030 and $655 billion by 2050, as airlines pursue net-zero carbon commitments. Current reliance on agricultural byproducts is insufficient to satisfy industry needs.

Nov 2025Waste360News article

Circularity Fuels transforms biogas from a California Central Valley dairy farm into synthesis gas (syngas), a critical input for sustainable aviation fuel (SAF). The process uses a compact electric unit costing one-hundredth of traditional steam methane or autothermal reformers. This approach leverages agricultural waste to produce aviation fuel precursors through advanced chemical conversion.

Sep 2025bulktransporter.comNews article