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.
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.
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.