Top 50 Green Hydrogen

The startup produces low-carbon hydrogen through electrolysis powered by renewable energy sources, providing a zero-emission fuel alternative for mobility, construction, and hard-to-electrify industries. This technology enables significant decarbonization efforts, contributing to a sustainable net-zero future.

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.

The startup has developed a technology-enabled platform for clean hydrogen production that integrates proprietary software and hardware to optimize efficiency and reduce costs. This platform aims to make clean hydrogen production economically viable, addressing the high costs associated with traditional hydrogen production methods.

Everfuel produces green hydrogen by electrolyzing water, enabling a clean energy source for mobility and industrial applications. The company aims to significantly reduce greenhouse gas emissions in hard-to-abate sectors, supplying up to 8 tons of green hydrogen daily to customers across Europe.

H2-Greenforce specializes in the production, distribution, and storage of green hydrogen using renewable energy sources, providing a scalable solution for various hydrogen applications. The company addresses the need for sustainable energy alternatives by facilitating the transition to hydrogen fuel, thereby reducing greenhouse gas emissions and supporting local economies through job creation.

The startup develops hydrogen panels that generate hydrogen gas by utilizing solar energy to split water molecules, capturing moisture from the air. This technology provides a sustainable energy source at a lower cost, complementing traditional solar panels and addressing the need for clean energy alternatives.

Ki Hydrogen operates a biomass‑electrolysis platform that simultaneously produces green hydrogen and biogenic carbon dioxide from lignocellulosic feedstocks such as agricultural and forestry waste. By integrating renewable electricity with abundant biomass, the system delivers hydrogen at approximately $2 per kilogram and CO₂ at $100 per tonne, targeting cost‑effective supply of these building blocks for decarbonising steel, chemicals, aviation fuels, and other heavy‑industry processes. Revenue is generated through the sale of the hydrogen and carbon products to industrial customers seeking low‑carbon inputs.

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.

Gen2 Energy produces and distributes green hydrogen using renewable energy sources, employing a logistics system that includes proprietary smart containers and blockchain technology for traceability. The company addresses the need for emission-free energy in Europe by providing a reliable supply of certified green hydrogen for industrial applications and transportation.

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.

Protium Green Solutions develops and operates green hydrogen production and infrastructure to provide zero-emission energy services, supporting organizations in their transition to net zero carbon emissions. By leveraging electrolysis technology, Protium aims to produce 1GW of green hydrogen in the UK by 2030, addressing the growing demand for sustainable energy solutions in various sectors, including aviation and commercial transport.

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.

Lhyfe produces green hydrogen through water electrolysis powered by renewable energy sources, ensuring zero CO2 emissions during the process. This technology provides a sustainable alternative to fossil fuels for mobility and industrial applications, facilitating the transition to decarbonized energy systems.

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.

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.

The startup develops green hydrogen and power-to-gas projects that produce renewable synthetic methane from green hydrogen and captured carbon dioxide. This technology enables the decarbonization of the heavy transportation sector by establishing a clean P2X gas production and distribution network in Finland, reducing reliance on fossil fuels.

EverWind Fuels is developing solar and wind farms to produce green hydrogen from 100% renewable resources, providing a carbon-free energy source. This initiative addresses the urgent need to reduce global CO2 emissions and dependence on fossil fuels, supporting a transition to sustainable energy solutions.

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.

Ambient Fuels develops custom-engineered green hydrogen solutions to facilitate the decarbonization of heavy industries. By providing a zero-carbon energy source, the company helps clients meet stringent emissions targets and enhance energy security.

P2X Solutions produces green hydrogen and synthetic fuels using Power-to-X technology, facilitating the transition to cleaner energy sources. The company is constructing industrial-scale production plants in Finland, targeting a total hydrogen production capacity of 1 GW by 2031 to meet growing energy demands and reduce carbon emissions.

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.

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.

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.

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.

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.

Norwegian Hydrogen develops and operates green hydrogen production facilities, utilizing renewable energy sources to generate hydrogen for zero-emission applications across various sectors, including transportation and industrial use. The company addresses the need for sustainable energy solutions by providing infrastructure that supports the transition to a low-carbon economy.

pHydrogen offers a cost-effective green hydrogen production technology using earth-abundant materials like iron and seawater. Their proprietary neutral electrolyte enables efficient electrolysis with reduced capital and operational expenses, making scalable hydrogen generation more accessible for industrial applications.

H2Pro develops a decoupled, membraneless electrolysis method for green hydrogen production, significantly reducing costs and enhancing operational flexibility. This technology addresses the need for affordable, scalable green hydrogen to support renewable energy integration and achieve net-zero emissions.

SoHHytec has developed a self-sustainable system that utilizes solar energy to produce renewable hydrogen, oxygen, heat, and electricity on-site, addressing the inefficiencies and environmental impact of traditional hydrogen production methods. Their solution, the Arb, offers a scalable and cost-effective approach to energy independence while minimizing land use.

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.

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.

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.

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.

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.

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.

Provides a SaaS platform for designing, simulating, and assessing early-stage green hydrogen projects, integrating data-driven energy models with on-demand consulting support. This tool enables energy developers to reduce project risks, cut assessment costs by 50-75%, and streamline decision-making through automated analysis and auditable reporting.

This company develops products based on Smart Tank technology to enable safe, accessible, and scalable generation and storage of green hydrogen. Their integrated solution allows businesses and consumers to produce their own on-site green hydrogen fuel using only water and renewable electricity. The technology addresses key concerns around production safety, storage, and efficiency monitoring to facilitate the switch from carbon-based fuels.

Equatic utilizes a proprietary electrolytic process to remove atmospheric carbon dioxide by leveraging seawater. This process permanently sequesters the captured carbon as stable mineral carbonates while simultaneously producing revenue-generating green hydrogen as a co-product. The technology offers a low-cost pathway for large-scale carbon dioxide removal (CDR) coupled with clean energy generation.

Rega Energy develops and operates biomethane and green hydrogen plants to provide sustainable energy solutions for high-emission industries such as cement, steel, and textiles. By replacing fossil fuels with renewable alternatives, the company aims to significantly reduce carbon emissions and facilitate the transition to a sustainable economy.

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 company develops Smart Tank technology for the safe, accessible, and scalable generation and storage of green hydrogen. Their integrated system allows businesses and consumers to produce on-site green hydrogen fuel using only water and renewable electricity. The solution removes complex distribution challenges by enabling point-of-use production and storage while monitoring safety and efficiency via IoT software.

Greenzo Energy manufactures electrolyzers for green hydrogen production and provides integrated solutions for renewable energy projects, including ammonia and fuel cell technology. The company addresses the need for zero-emission energy services, helping organizations transition to sustainable energy sources and reduce greenhouse gas emissions.

Spiral Hydrogen builds centrifugal electrolyzers that eliminate gas bubbles, achieving up to 95% HHV efficiency at high current densities (3 A cm⁻²). The plug‑and‑play system uses porous electrodes and in‑situ catalyst redeposition to deliver low‑cost, long‑life green hydrogen for industrial producers and heavy‑industry decarbonization.

HyCC produces green hydrogen through large-scale water electrolysis, targeting the decarbonization of heavy industries. By providing a sustainable energy source, the company addresses the need for emission-free solutions in sectors such as steel production and transportation.

This company develops and operates green hydrogen hubs to supply and decarbonize industry, mobility, and communities. They also engineer integrated hydrogen system solutions for buildings to foster energy self-sufficiency and achieve net-zero targets. Additionally, the company offers plug-and-play hydrogen products and financing options to accelerate the energy transition.

The startup develops hydrogen production reactor systems that utilize a reactant-based method to separate hydrogen from water, generating renewable green hydrogen and advanced ceramic materials. By capturing produced heat for cogeneration, the systems provide clean energy solutions for industrial applications, reducing emissions and enabling sustainable power for homes and offices.

QD-SOL utilizes proprietary nanoparticle photocatalysts to produce green hydrogen directly from sunlight and water, significantly reducing production time and eliminating the need for electricity. This technology addresses the high costs and environmental impact associated with traditional hydrogen production methods, offering a scalable and sustainable solution.

Hydros Power develops hydrogen fuel cell hybrid energy systems and decentralized green hydrogen production technologies to enhance energy efficiency and reduce carbon emissions in mobility and off-grid applications. Their solutions address the challenges of hydrogen storage and distribution, enabling users to generate and utilize green hydrogen independently.

Ecolectro utilizes patented alkaline exchange materials to produce green hydrogen through a membrane-based electrolysis process, significantly reducing production costs by 33%. This technology addresses the high costs and environmental impact associated with traditional hydrogen production methods, making clean hydrogen a viable alternative.