1
Country: Estonia | Funding: €63.7M
Stargate Hydrogen Solutions offers turn-key electrolysis solutions for the production of green hydrogen with renewable energy.
Stargate Hydrogen Solutions offers turn-key electrolysis solutions for the production of green hydrogen with renewable energy.
2
Country: USA | Funding: $156.6M
Verdagy enables the large-scale production of green hydrogen by innovating water electrolysis technology.
Verdagy enables the large-scale production of green hydrogen by innovating water electrolysis technology.
3
Country: USA | Funding: $798.3M
Electric Hydrogen manufactures electrolyzers and builds hydrogen production plants - HYPRPlant. This fully integrated solution includes all necessary subsystems. The world's most powerful PEM unit ensures ultra-low electrolysis costs. A standard, pre-engineered design is delivered ready for on-site assembly, reducing overall installation costs by up to 60%. Minimal on-site integration reduces project development risks. The company operates a gigafactory in the US, where it manufactures electrolyzer units and is actively developing its own portfolio of hydrogen projects in the US and internationally. It also provides a full range of project development services, from site feasibility assessments to hydrogen production and project financing.
Electric Hydrogen manufactures electrolyzers and builds hydrogen production plants - HYPRPlant. This fully integrated solution includes all necessary subsystems. The world's most powerful PEM unit ensures ultra-low electrolysis costs. A standard, pre-engineered design is delivered ready for on-site assembly, reducing overall installation costs by up to 60%. Minimal on-site integration reduces project development risks. The company operates a gigafactory in the US, where it manufactures electrolyzer units and is actively developing its own portfolio of hydrogen projects in the US and internationally. It also provides a full range of project development services, from site feasibility assessments to hydrogen production and project financing.
4
Country: UK | 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.
5
Country: USA | Funding: $297M
Ohmium designs, manufactures and installs reliable and cost-effective proton-exchange membrane electrolyzers for producing high-purity hydrogen under pressure. These energy plants use water and renewable energy to produce clean hydrogen and are easily scalable from megawatts to gigawatts thanks to their modular design. The electrolyzer uses tap water from an on-site source, purified through filtration, reverse osmosis and ion exchange for deionization, making it suitable for electrolysis. The company's cloud software ensures continuous global remote monitoring and maintenance of the system.
Ohmium designs, manufactures and installs reliable and cost-effective proton-exchange membrane electrolyzers for producing high-purity hydrogen under pressure. These energy plants use water and renewable energy to produce clean hydrogen and are easily scalable from megawatts to gigawatts thanks to their modular design. The electrolyzer uses tap water from an on-site source, purified through filtration, reverse osmosis and ion exchange for deionization, making it suitable for electrolysis. The company's cloud software ensures continuous global remote monitoring and maintenance of the system.
6
Country: Australia | Funding: $166.7M
Hysata develops ultra-high-efficiency hydrogen electrolyzers that intend to achieve the lowest cost of hydrogen. Thanks to high efficiency in an inherently simpler, cheaper and modular system (according to the company) its electrolyzer achieves 95% efficiency, significantly exceeding the International Renewable Energy Agency's 2050 efficiency target. Hysata's electrolyzer design is based on two key innovations: an ultra-low-resistance separator and bubble-free operation. Together, these factors reduce cell resistance and make the cell highly efficient. With the support of leading global strategic and financial investors, Hysata is rapidly moving toward multi-gigawatt production.
Hysata develops ultra-high-efficiency hydrogen electrolyzers that intend to achieve the lowest cost of hydrogen. Thanks to high efficiency in an inherently simpler, cheaper and modular system (according to the company) its electrolyzer achieves 95% efficiency, significantly exceeding the International Renewable Energy Agency's 2050 efficiency target. Hysata's electrolyzer design is based on two key innovations: an ultra-low-resistance separator and bubble-free operation. Together, these factors reduce cell resistance and make the cell highly efficient. With the support of leading global strategic and financial investors, Hysata is rapidly moving toward multi-gigawatt production.
7
Country: Israel | Funding: $107.2M
H2Pro is developing a membrane-free, phase-separated hydrogen electrolyzer (DWE) that enables producing the most affordable and truly green hydrogen. It connects directly to renewable energy sources, reducing production costs. The DWE operates in two phases. In the first phase, renewable electricity enters a bifunctional electrode, where it reduces water molecules, producing hydroxide ions and hydrogen molecules. Meanwhile, to complete the electrochemical circuit, a counter electrode reacts with hydroxide ions, producing water molecules and charging the electrode. As hydrogen is formed, it flows into a separator tank. In the second phase, the charged electrode discharges, while oxygen is formed at the bifunctional electrode. The oxygen flows into a separate tank. When the battery electrode is completely discharged, the cycle begins again from phase 1. H2Pro is currently implementing a 0.5 MW pilot project.
H2Pro is developing a membrane-free, phase-separated hydrogen electrolyzer (DWE) that enables producing the most affordable and truly green hydrogen. It connects directly to renewable energy sources, reducing production costs. The DWE operates in two phases. In the first phase, renewable electricity enters a bifunctional electrode, where it reduces water molecules, producing hydroxide ions and hydrogen molecules. Meanwhile, to complete the electrochemical circuit, a counter electrode reacts with hydroxide ions, producing water molecules and charging the electrode. As hydrogen is formed, it flows into a separator tank. In the second phase, the charged electrode discharges, while oxygen is formed at the bifunctional electrode. The oxygen flows into a separate tank. When the battery electrode is completely discharged, the cycle begins again from phase 1. H2Pro is currently implementing a 0.5 MW pilot project.
8
Country: USA | Funding: $18.6M
Fourier is develops a modular and fully automated hydrogen production system.
Fourier is develops a modular and fully automated hydrogen production system.
9
Country: Singapore | Funding: $4.5M
SunGreenH2 is a deep cleantech company making electrolysers produce 2x green hydrogen using 30x lower precious metals and 10% lower energy.
SunGreenH2 is a deep cleantech company making electrolysers produce 2x green hydrogen using 30x lower precious metals and 10% lower energy.
10
Country: USA | Funding: $2.5M
Tobe Energy is developing a new class of electrolyzers that split water into hydrogen and oxygen. According to the company, their membrane-free system reduces equipment costs by up to 75% and will reduce heat generation, which is a significant source of inefficiency in traditional systems. This is achieved through the use of advanced power electronics that control a high-voltage, low-current system, new anode and cathode configuration and the elimination of exotic materials. Tobe's electrolyzer is currently in the experimental prototype stage and costs $446 per kilowatt (kW), that is 45% less than the cheapest of other leading electrolysis technologies, such as alkaline, proton-exchange membrane, solid oxide and anion exchange systems.
Tobe Energy is developing a new class of electrolyzers that split water into hydrogen and oxygen. According to the company, their membrane-free system reduces equipment costs by up to 75% and will reduce heat generation, which is a significant source of inefficiency in traditional systems. This is achieved through the use of advanced power electronics that control a high-voltage, low-current system, new anode and cathode configuration and the elimination of exotic materials. Tobe's electrolyzer is currently in the experimental prototype stage and costs $446 per kilowatt (kW), that is 45% less than the cheapest of other leading electrolysis technologies, such as alkaline, proton-exchange membrane, solid oxide and anion exchange systems.
11
Country: Canada
HYGN Energy produces hydrogen hybrid engine retrofit kits for truck fleets that reduce fuel consumption and emissions. Its HY-RANGER alkaline electrolyzer modules integrate with existing gasoline and diesel vehicles, adding hydrogen to the engine for improved combustion—without the use of rare earth elements, membranes, or high pressure. Built with UL/CSA-certified components and featuring automotive-grade safety, the kits are quick to install, operate reliably in Canadian conditions, and connect to telematics for performance tracking. The company promises fuel savings of up to 20% and emissions reductions of up to 100%.
HYGN Energy produces hydrogen hybrid engine retrofit kits for truck fleets that reduce fuel consumption and emissions. Its HY-RANGER alkaline electrolyzer modules integrate with existing gasoline and diesel vehicles, adding hydrogen to the engine for improved combustion—without the use of rare earth elements, membranes, or high pressure. Built with UL/CSA-certified components and featuring automotive-grade safety, the kits are quick to install, operate reliably in Canadian conditions, and connect to telematics for performance tracking. The company promises fuel savings of up to 20% and emissions reductions of up to 100%.
13
Country: Israel
Purammon has developed wastewater electrolyzers that produce green hydrogen from wastewater instead of fresh water.
Purammon has developed wastewater electrolyzers that produce green hydrogen from wastewater instead of fresh water.
