Last updated: 15 Mar 2026 · 4 companies indexed
Stacks, Membranes & Components — United Kingdom
4 electrolyzer companies in United Kingdom. European electrolyzer capacity needs to scale from ~1 GW installed (2024) to 100 GW by 2030 per REPowerEU targets. Three dominant technologies compete: PEM (fast response, high cost), alkaline (mature, lower cost), and SOEC (highest efficiency, least mature). Stack costs dropped 40% since 2020 but remain at €500-1,200/kW.
Companies — Showing 1–4 of 4
Company
Lloyd's Register EmeaEU
London, GB·GB821176647
EU Horizon Europe participant working on electrolysis, hydrogen infrastructure, or power-to-X technology. Based in London.
Smart Megawatt Stack Fuel Cell Systems Limited
·13823438
SMART MEGAWATT STACK FUEL CELL SYSTEMS LIMITED — UK hydrogen sector company. Company No: 13823438. Source: Companies House.
Clean Power Hydrogen PLC
Doncaster, GB
Membrane-free electrolyzer technology for green hydrogen.
Johnson Matthey Hydrogen Technologies
London, GB
Fuel cell and electrolyzer catalyst and MEA manufacturer.