List of the 50 largest electrolyzer manufacturers Global 
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Get access to our list of the most important global electrolyzer manufacturers as an excel file for 99,99€. The list includes all electrolyzer manufactureres from our database and further information (like executives’ names, contact details, etc.). The list includes free-of-charge updates and additional entries for one year, sent out via email.
Last update: 20th November, 2023
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List of 5 large Electrolyzer Manufactures globally 
Hydrogen plays a crucial role in driving the transition towards cleaner and more sustainable energy solutions. A significant hurdle in the global energy revolution lies in ensuring the widespread availability of hydrogen for low-carbon chemical and fuel production, as well as the production of green steel and meeting energy demands. Adding to this the interest in green hydrogen has increased rapidly worldwide in recent years. Due to this, Hydrogen Electrolyzers present an excellent, cost-effective solution for generating high-quality hydrogen, versatile enough to power a myriad of applications. In the following, five large global Electrolyzer Manufacturers will be presented.
1. ITM Power Plc.
ITM Power is a Sheffield based clean fuel and energy storage company dedicated to designing, producing, and seamlessly integrating electrolyzers. The company’s electrolyzer systems are based on proton exchange membrane (PEM) technology and require just renewable electricity and tap water to produce environmentally friendly green hydrogen. The company stands firmly committed to sustainable energy solutions centered on water electrolysis. ITM Power was the first hydrogen related company to be listed on the “London Stock Exchange”, making the company globally recognized experts in their field.
2. Nel Hydrogen
Nel Hydrogen is a global, dedicated hydrogen enterprise based in Oslo, striving to provide optimal solutions for the production and distribution of hydrogen derived from renewable energy sources. The company stands at the forefront as a globally acclaimed leader in alkaline and PEM water electrolysis technologies. Renowned for its expertise, Nel designs top-tier electrolyzers tailored for diverse applications such as industry, transport, Power-to-X, and beyond.
3. Sunfire GmbH
Sunfire is a globally acclaimed industrial electrolysis company based in Dresden, renowned for its excellence. Sunfire’s advanced electrolyzers are adept at producing renewable hydrogen and syngas, utilizing renewable electricity, water steam, and captured CO2. With a commitment to environmental consciousness, Sunfire’s electrolysis solutions play a pivotal role in enabling climate-conscious businesses and energy-intensive industries to decarbonize entire value chains. The company manufactures Alkaline and solid-oxide electrolysis cell (SOEC) electrolyzers. Sunfire has locations in Germany and Switzerland, with a dedicated team of over 500 employees.
4. Thyssenkrupp Nucera AG & Co. KGaA
The Dortmund based manufacturer of electrolysis products Thyssenkrupp Nucera was founded in 2013 and, since then, has been promoting green hydrogen energy. Their vision is to be the foremost provider in hydrogen and chlorine technologies, envisioning a future where their large-scale solutions shape green value chains, contributing significantly to climate-neutrality and the evolution of a new industry ecosystem. The companies experience in chlor-alkali business appears to be a safe ground for alkaline water electrolysis technology and scale-up. The company has its locations in Germany, Italy, the United States, Saudi Arabia, India, Japan, China, and Australia – employing more than 600 people worldwide.
5. Topsoe A/S
Topsoe is a Lyngby based leading force, dedicated to developing and delivering cutting-edge solutions and technologies that are pivotal in driving the energy transition forward. The company is a trusted name in energy-efficient technologies, presenting an array of solutions spanning hydroprocessing, chemical processing, and air emission control. Topsoe manufactures SOEC electrolyzers, that not only enhances the production of green hydrogen but also optimizes the plant’s overall capacity, all while minimizing technical risks throughout the entire solution life cycle. The company has global locations in Denmark, India, the United States, Brazil, Germany, Indonesia, Canada, China, and more.
Included columns in our list
This list includes all electrolyzer manufacturers from our database, all information that is available on specific web pages, and even more data points (like management). The list includes all publicly available information or data points shared by the companies themselves.
- Company Name
- Legal form
- Revenue [in M€]
- Revenue source
- Focus on electrolyzers (Yes/No)
- Types of electrolyzers