Founded in 2009 by Sébastien Le Polles and based in Valbonne, Flexfuel Energy Développement (FFED) is a cleantech company specialising in engine depollution and fuel savings. The group designs and supplies two main product lines: hydrogen-based decarbonisation stations (Hy-Carbon) for garages, used to clean clogged engines, and Superethanol-E85 conversion kits, allowing motorists to reduce their CO₂ emissions by over 70% and cut fuel costs by more than 50%.