The Global Green Hydrogen Market was valued at USD 2.06 Billion in 2024 and is projected to reach a staggering USD 46.2 Billion by 2031, accelerating at a phenomenal Compound Annual Growth Rate (CAGR) of 57.3% during the forecast period. This explosive growth is driven by urgent global decarbonization commitments, a surge in demand from hard-to-abate industries like steel and chemicals, and significant technological advancements in electrolyzer efficiency and production scale.

As nations and corporations pledge to achieve net-zero emissions, green hydrogen—produced via electrolysis powered by renewable electricity—has emerged as the cornerstone fuel for a sustainable future. In this blog, we profile the Top 10 Companies in the Green Hydrogen Industry—a dynamic mix of established energy giants, specialized electrolyzer manufacturers, and integrated energy solution providers who are building the backbone of the global hydrogen economy.

---

🔟 10. thyssenkrupp AG

Headquarters: Essen, Germany
Key Offering: Large-scale Alkaline Water Electrolysis (AWE) plants, Chlorine electrolysis technology

thyssenkrupp’s Uhde Chlorine Engineers division is a global powerhouse in large-scale electrolysis, with a track record spanning decades. The company offers integrated plant solutions for green hydrogen and green ammonia production, leveraging its advanced alkaline electrolyzer technology renowned for high efficiency and durability.

Key Projects & Initiatives:

• Partnered with E.ON and Gasunie on the ‘Westküste 100’ project, Germany’s first major hydrogen hub.

• Supplying 2+ GW of electrolyzers to the NEOM green hydrogen project in Saudi Arabia, one of the world’s largest.

• Investing in gigawatt-scale manufacturing capacity to meet soaring global demand.

Download FREE Sample Report: Green Hydrogen Market – View in Detailed Research Report

---

9️⃣ 9. McPhy Energy S.A.

Headquarters: Grenoble, France
Key Offering: McLyzer alkaline electrolyzers, Hydrogen refueling stations (HRS), Solid-state hydrogen storage solutions

A French pioneer, McPhy Energy provides a comprehensive suite of hydrogen solutions, from production to distribution and storage. Its modular alkaline electrolyzer systems are designed for industrial-scale applications, while its refueling stations support the growth of hydrogen mobility across Europe.

Key Projects & Initiatives:

• Selected to supply a 16 MW electrolyzer to the HySTER green hydrogen project in Belgium for industrial decarbonization.

• Developing high-capacity solid-state hydrogen storage technology to address the energy sector’s storage challenges.

---

8️⃣ 8. HydrogenPro AS

Headquarters: Porsgrunn, Norway
Key Offering: High-pressure alkaline electrolyzers

HydrogenPro specializes in advanced, high-pressure alkaline electrolysis systems engineered for superior efficiency and lower lifetime costs. Its technology is particularly well-suited for integration with variable renewable energy sources like wind and solar, making it a favored choice for gigawatt-scale projects.

Key Projects & Initiatives:

• Entered a strategic partnership with Glencore to develop and finance large-scale green hydrogen projects in Europe and North America.

• Supplying multi-hundred MW electrolyzers to major green hydrogen initiatives in the U.S. and Scandinavia aimed at ammonia and steel production.

---

7️⃣ 7. Cummins Inc.

Headquarters: Columbus, Indiana, USA
Key Offering: PEM electrolyzers under the ‘Accelera’ brand, Fuel cell systems, Hydrogen internal combustion engines

Following its acquisition of Hydrogenics, Cummins has become a fully integrated player in the hydrogen value chain. The company offers Proton Exchange Membrane (PEM) electrolyzers and is a leader in hydrogen fuel cell technology for heavy-duty transportation, providing a complete zero-emission solution.

Key Projects & Initiatives:

• Building a 500 MW PEM electrolyzer manufacturing plant in Minnesota, USA, to boost North American production capacity.

• Supplying a 25 MW PEM electrolyzer for the HyCC hydrogen plant in the Netherlands, which will produce green hydrogen for sustainable aviation fuel (SAF) production.

Download FREE Sample Report: Green Hydrogen Market – View in Detailed Research Report

---

6️⃣ 6. LONGi Green Energy Technology Co., Ltd.

Headquarters: Xi’an, China
Key Offering: ALK and PEM electrolyzers, Integrated “PV + Hydrogen” system solutions

Building on its status as the world’s largest solar panel manufacturer, LONGi has aggressively entered the green hydrogen space. The company leverages its deep expertise in renewables to offer vertically integrated solutions, combining its high-efficiency solar modules with its own electrolyzers for optimized green hydrogen production.

Key Projects & Initiatives:

• Established a dedicated hydrogen subsidiary and launched its own series of large-scale alkaline and PEM electrolyzers.

• Pioneering “solar-to-hydrogen” projects in China, demonstrating the commercial synergy between low-cost solar PV and green hydrogen production.

---

5️⃣ 5. Siemens Energy AG

Headquarters: Munich, Germany
Key Offering: Silyzer PEM electrolyzers, Integrated Power-to-X solutions, Grid stabilization services

Siemens Energy is a key technology enabler for the hydrogen economy, offering its proprietary PEM electrolyzer systems that are highly responsive and ideal for coupling with intermittent renewable power. The company provides end-to-end solutions from electricity generation to hydrogen production, storage, and re-electrification.

Key Projects & Initiatives:

• Partnering with Air Liquide on the 200 MW Air Liquide Normand’Hy electrolyzer project in France, one of Europe’s largest.

• Collaborating with Porsche and others on the ‘Haru Oni’ eFuels project in Chile, using green hydrogen to produce synthetic fuels for motorsports.

---

4️⃣ 4. Nel Hydrogen

Headquarters: Oslo, Norway
Key Offering: Alkaline and PEM electrolyzers (Nel A Series & M Series), Hydrogen fueling stations

Nel Hydrogen boasts one of the longest histories in the industry and offers a technology-agnostic portfolio. As a pure-play hydrogen company, it provides both Alkaline and PEM electrolyzers, along with hydrogen fueling solutions. It is known for its scalable, modular designs that cater to projects ranging from megawatt to gigawatt scale.

Key Projects & Initiatives:

• Building a fully automated, 500 MW electrolyzer manufacturing facility in Michigan, USA, with plans to expand to 4 GW capacity.

• Selected to supply 200 MW of PEM electrolyzers to a major green ammonia project in the United States.

---

3️⃣ 3. Air Liquide

Headquarters: Paris, France
Key Offering: Large-scale electrolysis plants (ALK & PEM), Liquid hydrogen logistics & storage, Hydrogen refueling infrastructure

Air Liquide is an industrial gases giant with a massive global footprint and decades of experience in hydrogen production and logistics. The company is pivoting aggressively to green hydrogen, investing billions in large-scale electrolysis projects and building out a comprehensive clean hydrogen value chain for its extensive industrial and mobility customer base.

Key Projects & Initiatives:

• Investing over €8 billion in the low-carbon hydrogen supply chain by 2035.

• Developing a 200 MW electrolyzer in Normandy, France (Normand’Hy), to decarbonize its local refinery operations and supply other industries.

---

2️⃣ 2. Plug Power Inc.

Headquarters: Latham, New York, USA
Key Offering: PEM electrolyzers, Fuel cell systems for material handling and mobility, Green hydrogen production plants

Plug Power is a vertically integrated leader that has evolved from a fuel cell provider to a comprehensive green hydrogen ecosystem player. The company is constructing a network of hydrogen production plants across North America and Europe to supply its own fueling stations and external customers, creating a self-reinforcing market.

Key Projects & Initiatives:

• Aiming to produce 500 tons per day of green hydrogen by 2025 and 1,000 tons per day by 2028 across its global network.

• Building multiple 15-ton-per-day production plants in the U.S. and a 100 MW electrolyzer in Belgium in partnership with Ardian.

---

1️⃣ 1. Linde plc

Headquarters: Woking, United Kingdom
Key Offering: World-scale electrolysis plants, Cryogenic hydrogen storage and transportation, Engineering and construction services

Linde stands as the world’s largest industrial gas company and a premier engineering firm for hydrogen projects. Its unparalleled global scale, engineering expertise, and logistics capabilities position it as the ultimate integrator for the green hydrogen market, capable of executing the most complex, gigawatt-scale projects from start to finish.

Key Projects & Initiatives:

• Operates the world’s largest PEM electrolyzer (24 MW) in Leuna, Germany, supplying green hydrogen to the local chemical industry.

• Partnering in multiple $1-billion+ projects, including the Hydrogen City complex in Texas, USA, which will feature over 600 MW of electrolyzers.

Get Full Report Here: Green Hydrogen Market – View in Detailed Research Report

---

🌍 Outlook: The Future of Green Hydrogen Is Here and It’s Accelerating

The green hydrogen market is not just growing; it’s undergoing a fundamental transformation from pilot projects to gigawatt-scale industrial reality. While costs remain a challenge, the pace of innovation, manufacturing scale-up, and strategic policy support are closing the economic gap faster than anticipated.

📈 Key Trends Shaping the Market:

• Gigawatt-Scale Project Proliferation: Announcements for 100+ MW projects are becoming standard, with multi-gigawatt “Hydrogen Valleys” and export hubs planned in Australia, the Middle East, and South America.

• Supply Chain and Manufacturing Race: Companies are investing billions to secure critical material supplies (e.g., iridium, platinum) and build automated gigafactories for electrolyzers, driving costs down by over 50% by 2030.

• Sector Coupling Intensifies: Green hydrogen is becoming the crucial link between renewables and heavy industry, with firm offtake agreements from steelmakers (e.g., Hybrit, SALCOS) and ammonia producers creating a stable demand foundation.

• Policy Support Reaches Critical Mass: The U.S. Inflation Reduction Act’s $3/kg production tax credit, the EU’s Hydrogen Bank auctions, and similar initiatives in Asia are de-risking investments and attracting unprecedented capital.

Get Full Report Here: Green Hydrogen Market – View in Detailed Research Report

The companies profiled above are not merely participants in an emerging market; they are the architects and builders of a new global energy system. Their technologies, capital, and commitment are decarbonizing the backbone of the global economy—one molecule of green hydrogen at a time.

---

About 24chemicalresearch:

24chemicalresearch is a leading provider of market intelligence, delivering comprehensive reports, actionable insights, and data analysis across the global chemicals, materials, and energy sectors. Our expert-driven research helps businesses navigate complex markets, identify opportunities, and make informed strategic decisions in a rapidly evolving industrial landscape.