Top 50 Electrolyzer

The startup has developed an electromagnetic electrolyzer that efficiently splits water into hydrogen and oxygen, enabling the production of methane from excess renewable energy. This technology provides industries with a safer and more environmentally friendly fuel alternative for applications in transportation, shipping, and mining.

Ohmium manufactures proton exchange membrane (PEM) electrolyzers that convert water and renewable energy into high-purity green hydrogen, addressing the need for sustainable energy solutions across various industries. Their modular systems enable scalable hydrogen production, enhancing operational efficiency and supporting decarbonization efforts in power, transportation, and industrial applications.

Electric Hydrogen manufactures and commissions 100MW electrolyzer plants that produce green hydrogen at a cost of $1/kg, making it economically viable for industries to transition from fossil fuels. By significantly reducing the production costs and installation timelines of electrolyzers, the company enables critical sectors like steel and chemicals to decarbonize efficiently.

The startup has developed a low-temperature electrolysis technology that converts CO emissions into fossil-free e-fuels and chemicals using renewable electricity. This process provides industries such as aviation and manufacturing with cost-effective, sustainable feedstocks, addressing the need for cleaner alternatives to traditional fossil fuels.

Versogen develops a scalable anion exchange membrane (AEM) electrolyzer that utilizes water and renewable energy to produce green hydrogen, addressing the need for zero-emission solutions in hard-to-abate industries. By employing earth-abundant materials, the technology offers a reliable and cost-effective method to significantly reduce industrial carbon emissions.

Hystar develops polymer electrolyte membrane electrolyzers for large-scale green hydrogen production, utilizing high-efficiency stacks in a modular design for flexible implementation. This technology addresses the need for sustainable hydrogen solutions to support the transition to renewable energy sources.

Oort Energy manufactures hydrogen electrolyzers that utilize proprietary electrolysis technology to produce green hydrogen from solar energy in an off-grid setup. Their systems significantly lower the cost of green hydrogen production, facilitating its adoption for decarbonizing industrial processes.

Verdagy develops a patented single-cell electrolyzer technology that enables efficient, large-scale production of green hydrogen by pairing with variable energy sources. This approach addresses the high operational costs and inflexibility of traditional electrolysis methods, delivering the lowest levelized cost of hydrogen in the industry.

STOFF2 develops and manufactures electrolyzers designed for the efficient production of green hydrogen. These systems integrate hydrogen generation with energy storage, enabling cost-effective grid-serving utilization of fluctuating renewable energy sources. The company provides flexible, high-performance solutions to support the decarbonization efforts across various industries requiring reliable CO2-neutral hydrogen.

The startup has developed a nitrogen electrolyzer technology that generates aqueous ammonia from air and water at ambient conditions, enabling on-site production of both liquid anhydrous ammonia fuel and aqueous ammonium solutions for fertilizers. This platform provides a sustainable and flexible solution for clients seeking decentralized electrochemical ammonia production and fertilizer manufacturing.

HydrogenPro designs and manufactures high-pressure alkaline electrolyzers that efficiently convert renewable energy into hydrogen, addressing the need for sustainable energy storage solutions. Their technology enables scalable production of hydrogen with low environmental impact, supporting industries in achieving their sustainability goals.

Power to Hydrogen develops anion exchange membrane (AEM) electrolyzers that integrate with renewable energy sources to produce low-cost hydrogen and pressurized oxygen without the use of precious metals. This technology enhances the economic viability of industrial hydrogen applications and optimizes energy output from solar and wind installations.

Amoy Island Hydrogen specializes in the manufacturing of proton exchange membrane (PEM) electrolyzers and testing instruments, facilitating efficient hydrogen production through water electrolysis. The company addresses the need for reliable and high-performance hydrogen generation equipment in various applications, including hydrogen refueling stations and semiconductor production.

HYDGEN develops AEM and PEM electrolyzers that enhance green hydrogen production efficiency by up to 2.5 times while reducing energy consumption by 20% compared to traditional systems. This technology addresses the high costs of green hydrogen production, enabling industries to transition to sustainable energy sources more effectively.

This startup specializes in renewable hydrogen production through water electrolysis, providing a zero-carbon alternative for industrial, transportation, and power sector clients. By developing hydrogen projects, the company enables facilities to utilize emission-free fuel, reducing their carbon footprint and operational costs.

<name>REMA</name> <description>REMA develops anion exchange membrane (AEM) electrolyzers that merge alkaline electrolyzer robustness with PEM flexibility to produce green hydrogen at higher temperatures and power densities. Their plug‑and‑play units, ranging from 2.5 kW to 50 kW, are designed for scalable manufacturing using standard injection‑molding processes, reducing capital expenditure and operating costs. By lowering production costs toward $2 per kilogram, REMA aims to make green

SunGreenH2 develops electrolysers that produce twice the amount of green hydrogen while utilizing 30 times fewer precious metals and consuming 10 times less energy. This technology addresses the high costs and resource intensity associated with traditional hydrogen production methods.

Electrogenos develops a unique manufacturing process for green hydrogen electrolysers, significantly reducing production costs and factory deployment times. Their proprietary architecture simplifies the electrolyser stack, enabling fully automated, continuous factory operations. This approach delivers lower stack prices per kilowatt, making sustainable hydrogen energy more accessible across various industrial applications.

Enapter manufactures hydrogen generators using patented Anion Exchange Membrane (AEM) technology, enabling efficient production of green hydrogen from renewable energy sources. Their modular AEM Electrolysers, ranging from 2.4 kW to 100 MW, facilitate scalable hydrogen production while optimizing energy management through an integrated software toolkit.

This company utilizes modular electrolyzer technology to convert captured CO2 into clean, low-carbon methanol powered by renewable energy. This process provides a low-cost solution for decarbonizing sectors like chemicals, shipping, and aviation. The resulting e-methanol is designed as a drop-in ready fuel and chemical feedstock for various industrial applications.

Hydrogen Optimized manufactures RuggedCell™ high-power water electrolyzers that convert renewable electricity into clean hydrogen at scale, addressing the need for low-cost hydrogen production in industrial applications. Their technology enables efficient operation with minimal maintenance, ensuring high uptime and adaptability to variable power inputs from sources like solar and wind.

Micro Hydrogen provides a grid‑independent electrolyzer platform that directly uses on‑site wind or solar power to produce green hydrogen. Its modular system, scalable from 10 kW to multi‑megawatt, includes turnkey design, installation and remote monitoring, enabling renewable developers and industrial operators to generate hydrogen on‑site without grid connection or transport.

Produces clean hydrogen using alkaline electrolysis powered by renewable electricity, enabling the decarbonization of heavy industry. This technology provides a sustainable alternative to fossil fuels, reducing greenhouse gas emissions in sectors such as steel, cement, and chemicals.

Electric Hydrogen builds large‑scale alkaline electrolyzer systems that convert electricity to hydrogen with over 80 % round‑trip efficiency at pressures up to 30 bar. The modular, 10 MW‑scalable hardware includes an integrated digital control platform for real‑time monitoring, predictive maintenance, and rapid integration with renewable power and existing hydrogen infrastructure. This turnkey solution lowers capital and operating costs for heavy‑industry and utility customers seeking to replace gray hydrogen with green production.

H2MB designs, builds, and operates large‑scale electrolysis plants that convert renewable electricity into green hydrogen using modular PEM and alkaline stacks optimized for intermittent wind and solar inputs. It offers high‑pressure storage, truck and pipeline delivery, and fuel‑cell integration services, all monitored through a cloud‑based analytics dashboard for performance and carbon‑offset tracking. The company serves transportation fleet operators, utility‑scale power generators, and heavy‑industry processors in the Canadian prairie region seeking low‑cost, zero‑emission hydrogen.

Dynelectro develops a proprietary solid oxide electrolysis (SOEC) technology that extends the lifespan of electrolyzers by over five times, enabling efficient production of green hydrogen from renewable energy sources. This approach addresses the high costs and intermittent power challenges associated with traditional hydrogen production methods, facilitating a transition to cleaner energy solutions.

Dioxycle develops modular electrolyzer technology that transforms carbon dioxide emissions into sustainable ethylene, a key feedstock for various everyday products. This process enables the recycling of over 800 million tons of CO₂ annually, significantly reducing reliance on fossil fuel-derived ethylene.

Battolyser Systems produces a flexible electrolyser with integrated battery capacity that generates 100 green hydrogen by utilizing low-cost renewable energy and instantly switching between hydrogen production and electricity discharge. This technology addresses the challenge of high Levelized Cost of Hydrogen LCOH by enabling hydrogen production only when electricity prices are favorable, while also allowing for revenue generation through electricity trading.

Green Hydrogen Systems specializes in the development of electrolysers that convert renewable electricity into green hydrogen, a clean energy carrier. This technology addresses the need for sustainable energy solutions by providing a method to store and transport energy without carbon emissions.

Cavendish Renewable Technology (CRT) develops next-generation Anion Exchange Membrane (AEM) electrolysers with proprietary electrocatalysts for efficient, low-cost green hydrogen production. Their technology addresses the high costs and inefficiencies associated with traditional hydrogen production methods, enabling on-demand hydrogen generation for various applications.

This startup manufactures metallic mats designed for energy applications, offering high-surface-area electrodes for electrolyzers, current collectors in batteries, and substrates for heterogeneous catalysis. These metallic mats enhance the performance and sustainability of electrochemical processes for next-generation energy storage and conversion.

NovaMea supplies modular digital power‑management units (CPUs) that control anion‑exchange membrane electrolyzers with advanced algorithms, real‑time diagnostics, and adaptive load‑balancing to align operation with intermittent renewable power. The integrated hardware and patented electrolyzer components improve conversion efficiency, lower total cost of ownership, and extend component life for industrial and utility‑scale green hydrogen producers.

Monarch Energy develops utility-scale green hydrogen projects using electrolyzer technology that combines clean electricity and water to produce zero-emissions hydrogen. This approach addresses the need to decarbonize the 10 million tonnes of hydrogen consumed annually by industrial users in the U.S.

Aepnus uses electrochemical salt‑splitting technology to convert sodium sulfate waste streams into caustic soda and sulfuric acid on‑site. The process lowers energy consumption, eliminates waste disposal steps, and reduces dependence on external chemical suppliers. By integrating the electrolyzers into existing plants, customers can cut operating costs, mitigate regulatory risk, and secure their chemical supply chain.

Exion Hydrogen designs and manufactures advanced water electrolyzers for green hydrogen production. Their technology enables efficient and scalable on-site hydrogen generation, supporting industrial decarbonization and renewable energy integration.

Marine Dolphin provides a deep‑sea electrolysis platform that splits seawater into hydrogen and oxygen at ~3,000 m depth, using ambient hydrostatic pressure to compress hydrogen to 300 bar without external compressors. The system incorporates a salt‑tolerant anion‑exchange membrane electrolyzer and an oxygen‑energy recovery unit, enabling low‑energy, offshore green hydrogen production integrated with renewable power sources for oil‑gas, wind and maritime operators.

Celadyne Technologies develops durable membranes for electrolyzers and fuel cells, enhancing their efficiency and longevity for industrial applications. By improving hydrogen production and utilization, the company addresses the high carbon emissions associated with heavy-duty transportation and industrial processes.

Pioneers non-precious metal catalysts and electrodes for alkaline and anion exchange membrane (AEM) electrolysis, using proprietary nanotechnology to improve efficiency and scalability in green hydrogen production. This approach reduces reliance on critical raw materials, lowers production costs by up to 20%, and supports decarbonization efforts across hard-to-abate industries.

Stargate Hydrogen Solutions provides turn-key alkaline electrolysis systems for the production of green hydrogen using renewable energy sources. Their technology addresses the need for decarbonization in industries such as heavy transport and steelmaking, where traditional electrification methods are insufficient.

Hysata develops hydrogen electrolyzers that utilize advanced membrane technology to efficiently convert water into green hydrogen, addressing the reliance on fossil fuels for energy. Their electrolyzers aim to lower production costs and increase the scalability of green hydrogen, facilitating a transition to sustainable energy sources.

Carbonade utilizes a patented, ultra-efficient electrochemistry process to convert captured CO2 into valuable hydrocarbon products like Sustainable Aviation Fuel (SAF) and e-Methanol. This single-step solution offers significantly higher energy efficiency and stability compared to conventional multi-step carbon utilization methods. The technology provides a cost-effective pathway for hard-to-abate sectors to produce sustainable carbon-based products compatible with existing infrastructure.

EVOLOH sells standardized stack modules, such as the Nautilus TM stack, designed to reduce project delays and cost overruns for Engineering, Procurement, and Construction (EPC) firms. These modules simplify plant design and integration by allowing integrators to utilize standard, widely-available Balance of Plant (BOP) components. This approach results in lower factory and stack costs compared to future competitor projections while maintaining domestic supply chains.

Newtrace develops patent-pending electrolyzers that utilize precision fluid engineering to produce ultrapure green hydrogen through a zero-carbon process. This technology reduces manufacturing costs by 30% and eliminates the need for rare earth metals, addressing the high costs and environmental impact associated with traditional hydrogen production methods.

Produces green hydrogen using solar-powered electrolysis, converting water into hydrogen without carbon emissions. This technology addresses the need for sustainable and affordable hydrogen production, supporting the transition to a low-carbon energy system.

NovaMea develops electrochemical systems for the low-cost production of green hydrogen from water and electricity. This technology addresses the need for sustainable energy storage and conversion solutions in the transition to a cleaner energy economy.

DHT designs and builds green hydrogen production systems for industrial clients, supplying electrolyzers and delivering integrated EPC projects. It also produces hydrogen-derived products such as sustainable aviation fuel, fertilizers, methanol, and metal manufacturing inputs, aiming to lower costs through R&D on electrolyzer efficiency.

Hefei Momentum Conservation develops and manufactures key materials and components for proton exchange membrane (PEM) water electrolysis, including iridium-based catalysts and porous transport layers. Their technology enhances electrolysis efficiency, significantly reducing the cost of green hydrogen production.

Intelli Electric designs and manufactures high-power AC/DC rectifiers and DC/DC power supplies specifically for hydrogen production through water electrolysis. Their technology optimizes power delivery for various load characteristics, enhancing efficiency in over 500 hydrogen projects across more than 80 countries.

Endua develops hydrogen electrolysis technologies for on-site production of green hydrogen, enabling decentralized energy storage solutions that provide reliable power for remote industries. Their modular power banks offer multi-day energy storage, effectively replacing diesel generators and reducing reliance on traditional fuel supply chains.

Clyde Hydrogen Systems develops decoupled electrolysis technology that produces high-pressure green hydrogen by separating the generation of hydrogen and oxygen, allowing for greater flexibility and efficiency. This approach addresses the challenges of existing electrolysers, including high costs, safety risks from gas mixing, and the need for mechanical compression.