Top 9 Hydrogen Fuel startups in UK
Feb 27, 2026
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31
1
Funding: £549.4M
ITM Power designs and manufactures proton-exchange membrane (PEM) electrolyzers for producing clean hydrogen using renewable electricity and tap water. Hydrogen produced by electrolysis is used in the transportation, Power-to-X projects and industrial processes. The company offers electrolyzers with capacities ranging from 2 to 50 MW. The units work with 30-bar pressure. Thanks to its very high current density, the technology reduces footprint and lowers costs. Combined with high conversion efficiency, it provides flexibility for optimizing project capital and operating costs. ITM has already deployed several commercial plants to customers and is using data to measure in-field product performance.
ITM Power designs and manufactures proton-exchange membrane (PEM) electrolyzers for producing clean hydrogen using renewable electricity and tap water. Hydrogen produced by electrolysis is used in the transportation, Power-to-X projects and industrial processes. The company offers electrolyzers with capacities ranging from 2 to 50 MW. The units work with 30-bar pressure. Thanks to its very high current density, the technology reduces footprint and lowers costs. Combined with high conversion efficiency, it provides flexibility for optimizing project capital and operating costs. ITM has already deployed several commercial plants to customers and is using data to measure in-field product performance.
2
Funding: $57.8M
Bramble Energy is an innovator energy technology company that designs and manufactures high-performance, low-cost, and fuel cell stack
Bramble Energy is an innovator energy technology company that designs and manufactures high-performance, low-cost, and fuel cell stack
3
Funding: £26M
HiiROC is an industrial company that produces hydrogen from biomethane, flare gas, or natural gas with no CO2 emissions.
HiiROC is an industrial company that produces hydrogen from biomethane, flare gas, or natural gas with no CO2 emissions.
4
Funding: £5.1M
Riversimple develops hydrogen fuel-cell cars for clients in the United Kingdom.
Riversimple develops hydrogen fuel-cell cars for clients in the United Kingdom.
5
Funding: £3.3M
PuriFire Labs is pioneering Green Hydrogen and Carbon-Neutral Methanol Production
PuriFire Labs is pioneering Green Hydrogen and Carbon-Neutral Methanol Production
6
Funding: £1M
Clyde Hydrogen methods is a technological business that is developing breakthrough methods for large-scale green hydrogen production.
Clyde Hydrogen methods is a technological business that is developing breakthrough methods for large-scale green hydrogen production.
7
Funding: $1.1M
Ki Hydrogen is a deep-tech venture that develops waste-to-hydrogen technology.
Ki Hydrogen is a deep-tech venture that develops waste-to-hydrogen technology.
8
Supercritical Solutions is developing the world's most efficient electrolyser for hydrogen production
9
Funding: £60K
Origin21 is reducing the cost of green hydrogen using sonication to extract hydrogen from water without the need for an electrolyte. The process is so effective it drastically reduces the energy requirements lowering the levelised cost of green hydrogen.
Origin21 is reducing the cost of green hydrogen using sonication to extract hydrogen from water without the need for an electrolyte. The process is so effective it drastically reduces the energy requirements lowering the levelised cost of green hydrogen.
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