Firefly Green Fuels

Sustainable Aviation Fuels from Sewage Sludge

San Francisco Bay Area, United Kingdom · Founded 2022 · $7.3M raised

Employees
1–10
Founded
2022
Business Model
B2B
Total Funding
$7.3M
Last Round
$5.0M Venture RoundMay 2025
Rounds
3

About

Firefly Green Fuels is a UK pioneer in sustainable aviation fuel (SAF) made from sewage biosolids using hydrothermal liquefaction technology. Its SAF has a lifecycle carbon intensity over 90% lower than conventional jet fuel and can be produced globally wherever sewage infrastructure exists. Founded by James Hygate OBE and Paul Hilditch, Firefly holds an offtake agreement with Wizz Air.

Summary

Firefly Green Fuels is an Energy company based in San Francisco Bay Area, United Kingdom, founded in 2022. It has raised $7.3M in total across 3 rounds, most recently a $5.0M Venture Round round in May 2025. Investors include Builders Vision, UK Government Green Fuels Programme and Plug and Play.

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