List of fuel cell manufacturers

A fuel cell is an electrochemical energy conversion device. Fuel cells differ from batteries in that they are designed for continuous replenishment of the reactants consumed.

This is a partial list of companies currently producing commercially available fuel cell systems for use in residential, commercial, or industrial settings. Fuel cell systems from these manufacturers are currently being used to generate AC or DC electricity, heat, water, or any combination of the three.

Company	Products
Ballard[1]	Ballard Fuel Cells "various products"
Bloom Energy[2]	Bloom Energy Server "BloomBox"
Ceres Power	Solid oxide fuel cell[3][4][5]
Doosan Fuel Cell America[6]	PureCell Model 400 and SOFC[3]
GenCell	GenCell Alkaline FC -5 kW Hydrogen backup and Ammonia based primary power
Horizon	ECOBOC-MR, Aerostack, Hydromax[7]
Intelligent Energy	FCM-800
Mitsubishi Heavy Industries	Solid oxide fuel cell[8]
Plug Power Inc.	GenDrive, GenSure, ProGen[9]
Robert Bosch GmbH[10]	PEMFC and SOFC[4]
Toshiba	Ene-Farm,[11] H2Rex[12]