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Who is the largest manufacturer of electrolysers | Manufacturers & Official Website 2025

Code: MTA4309 Publication Date: Jun 2025

Who is the largest manufacturer of electrolysers?

According to ÂÌñÉç internal database and industry insights, the global electrolysers market is set to witness extraordinary growth, projected to expand from around USD 2.8 billion in 2024 to over USD 16.9 billion by 2031, registering a CAGR of around 6.7%. This surge is driven by increasing global commitments to decarbonization and the rapid scale-up of green hydrogen production.

Key trends bolstering demand include declining renewable electricity costs, integration of electrolyzers with solar and wind farms, and innovations in alkaline, PEM, and solid oxide technologies. The market is also being catalyzed by industrial decarbonization efforts in sectors like steel, ammonia, and refining, where hydrogen plays a critical role.

List of the manufacturer of electrolysers

1. Cummins Inc.

Company NameCummins Inc.
HeadquartersColumbus, Indiana, USA
Established Year1919
Official Website

Globally diversified power technology company that entered electrolysis by acquiring Hydrogenics. Offers PEM and alkaline electrolyser systems like the HyLYZER, and is expanding gigawatt-scale facilities.

2. ITM Power plc

Company NameITM Power plc
HeadquartersSheffield, England
Established Year2000
Official Website

Designs and manufactures PEM electrolysers; operates one of the world's largest electrolyser factories. Known for multi-megawatt NEPTUNE systems deployed in Europe and Japan.

3. Linde plc

Company NameLinde plc
HeadquartersWoking, UK (legal in Ireland)
Established Year1879
Official Website

Largest industrial gas company globally, active in large-scale hydrogen infrastructure including electrolysis. A key member of the Hydrogen Council.

4. Thyssenkrupp Nucera

Company NameThyssenkrupp Nucera
HeadquartersDortmund, Germany
Established Yearroots in the 1960s
Official Website

A world leader in alkaline electrolyser systems, Thyssenkrupp Nucera has over 600 projects and more than 10 GW installed. Known for large-scale green hydrogen plants such as the 1 GW Neom project in Saudi Arabia.

5. Topsoe

Company NameTopsoe
HeadquartersKgs. Lyngby, Denmark
Established Year1940
Official Website

Pioneer of Solid Oxide Electrolyser Cell (SOEC) technology, delivering high-temperature electrolysis for industrial green hydrogen applications.

6. Sunfire

Company NameSunfire
HeadquartersDresden, Germany
Established Year2010
Official Website

Develops high-efficiency industrial electrolysers including SOECs, with focus on large-scale renewable hydrogen and syngas production.

7. Nel ASA

Company NameNel ASA
HeadquartersOslo, Norway
Established Year1927
Official Website

Specialist in electrolyser technology with roots in alkaline electrolysis. It has global installations and operates through entities like Proton On Site and H2 Logic.

8. Enapter

Company NameEnapter
HeadquartersBerlin, Germany
Established Year2017
Official Website

Manufacturer of modular Anion Exchange Membrane (AEM) electrolyzers designed for scalable, on-site hydrogen production without noble metals.

9. Siemens Energy

Company NameSiemens Energy
HeadquartersMunich, Germany
Established Year2020 (spinout from Siemens)
Official Website

One of Europe's largest PEM electrolyser producers, targeting 3 GW annual capacity. Offers the Silyzer series tailored for industrial green hydrogen projects.

10. Hysata

Company NameHysata
HeadquartersWollongong, Australia
Established Year2021
Official Website

Innovator in electrolyser technology, aiming to cut green hydrogen costs significantly. Developing advanced electrolyser stacks to reach cost-competitive rates.

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