Top 33 Green Hydrogen Companies to Watch: Leading Providers Shaping the Future in 2025 and Beyond

Discover key innovators and market leaders in the fast-growing green hydrogen industry. This analysis spotlights 33 standout companies driving the clean hydrogen revolution with new technologies and global partnerships. Explore the current landscape, major players, and opportunities in decarbonization. For in-depth data and competitive analysis, access the full Green Hydrogen Market report.

1. Adani Green Energy Limited

Adani Green Energy is a pioneering developer of integrated renewable energy projects. Leveraging vast solar and wind assets, Adani is rapidly expanding its green hydrogen endeavors to support India's decarbonization goals. The company’s scale and leadership in renewables make it a formidable player in green hydrogen production.

2. Air Liquide S.A.

Air Liquide stands out for its advanced gas and technology expertise, providing industrial-grade green hydrogen solutions worldwide. With investments in electrolysis and hydrogen infrastructure, Air Liquide supports diverse sectors in transitioning to clean hydrogen energy.

3. Air Products and Chemicals, Inc.

Air Products is a global frontrunner, excelling in large-scale hydrogen projects and innovative supply-chain solutions. Their experience with hydrogen liquefaction and transport strengthens their pivotal role in commercial green hydrogen applications.

4. Avaada Energy Pvt. Ltd.

Avaada Energy quickly gained recognition for its integrated renewable energy and green hydrogen initiatives in Asia. The company’s strategic focus on sustainability positions it as a vital partner for industrial and mobility sectors seeking green alternatives.

5. Ballard Power Systems Inc.

Ballard Power Systems is renowned for pioneering proton exchange membrane (PEM) fuel cell technology. As green hydrogen adoption accelerates, Ballard’s solutions are critical for powering fuel cell vehicles and scalable stationary power.

6. Bloom Energy Corporation

Bloom Energy leverages solid oxide electrolyzer technology to produce high-efficiency, low-cost green hydrogen. Their modular approach aids distributed power generation and commercial deployment across varied sectors.

7. Cummins Inc.

With robust expertise in fuel cell and electrolyzer modules, Cummins provides versatile solutions for heavy-duty transport, industry, and energy storage. Their focus on scaling up electrolyzer technology is facilitating commercial green hydrogen projects globally.

8. CWP Global

CWP Global is known for financing and delivering transformative renewable energy and hydrogen projects. Its major developments in the Middle East and Australia are set to drive regional supply chain and export innovation.

9. ENAPTER s.r.l.

ENAPTER produces highly modular, scalable electrolysis systems using anion exchange membrane (AEM) technology. With a focus on affordability and decentralization, ENAPTER enables small and large-scale green hydrogen production worldwide.

10. ENGIE SA

ENGIE merges expertise in renewables with substantial investments in green hydrogen infrastructure. Its ambitious projects across Europe and APAC accelerate the adoption of clean energy in power, mobility, and industry.

11. Green Hydrogen Systems A/S

A leader in efficient, containerized electrolysis, Green Hydrogen Systems delivers flexible solutions for on-site production and industrial integration. Their robust technology appeals to sectors requiring scalable and reliable green hydrogen supply.

12. Hiringa Energy Limited

Hiringa Energy is advancing hydrogen refueling networks and green hydrogen generation in New Zealand and Australia. Their focus on transportation infrastructure underpins regional decarbonization and mobility solutions.

13. HydrogenPro ASA

HydrogenPro specializes in large-scale alkaline electrolyzers, providing robust, high-efficiency systems for heavy industry and export markets. Their innovation in scaling production is vital as demand for green hydrogen accelerates globally.

14. Iberdrola, S.A.

Iberdrola leverages its leading renewable portfolio to drive green hydrogen projects aimed at decarbonizing industry and transport. Its ongoing investments in electrolyzers cement its strategy of fostering integrated clean energy ecosystems.

15. ITM Power PLC

ITM Power is a pioneering developer of PEM electrolyzers, enabling high-purity hydrogen for industrial, mobility, and power-to-gas applications. Their modular approach supports the fast deployment of customized hydrogen solutions.

16. Iwatani Corporation

As a major hydrogen supplier in Asia, Iwatani leads the build-out of end-to-end green hydrogen infrastructure, including fueling stations and industrial supply chains. Their expertise in distribution positions them as a key contributor to hydrogen mobility in the region.

17. Kawasaki Heavy Industries, Ltd.

Kawasaki is at the forefront of hydrogen liquefaction and transport technologies. Its innovations enable long-distance shipment of green hydrogen, supporting large-scale import-export operations essential to global market development.

18. Larsen & Toubro Limited

Larsen & Toubro is accelerating the engineering and construction of green hydrogen infrastructure. Their experience with complex industrial projects bolsters rapid deployment in emerging markets with ambitious decarbonization targets.

19. Linde PLC

Linde is a global leader in industrial gases, leveraging its legacy to innovate in green hydrogen production and supply chains. Its broad project portfolio includes electrolysis deployment and infrastructure across multiple continents.

20. McPhy Energy S.A

McPhy Energy’s focus on integrated hydrogen production and storage solutions makes it a critical enabler for industrial and mobility sectors. Its multi-megawatt electrolyzers support Europe’s transition to sustainable energy.

21. Messer SE & Co. KGaA

Messer is advancing the sustainable production and distribution of industrial and specialty gases, including green hydrogen. With a global presence, Messer supports industrial decarbonization and clean fuel transitions.

22. Nel ASA

With expertise spanning alkaline and PEM electrolysis, Nel ASA drives innovation in scalable green hydrogen systems. Their solutions serve diverse industries, from refueling networks to renewable integration.

23. NEOM Company

NEOM is leading an ambitious giga-scale hydrogen project in Saudi Arabia, seeking to transform the region into a global green hydrogen hub. Its vision leverages renewable resources and state-of-the-art infrastructure.

24. Ohmium International, Inc.

Ohmium focuses on manufacturing advanced modular PEM electrolyzers for flexible, decentralized green hydrogen production. Their solutions are tailored for industrial, commercial, and mobility needs worldwide.

25. Plug Power Inc.

Plug Power is at the nexus of hydrogen fuel cell and electrolyzer development, serving materials handling, mobility, and stationary power markets. Its integrated value chain approach ensures seamless green hydrogen adoption in logistics and industry.

26. PowerCell Sweden AB

PowerCell Sweden specializes in innovative fuel cell stacks for automotive, marine, and stationary applications. Their role in clean tech drives efficient utilization of green hydrogen across end-use industries.

27. Reliance Industries Limited

Reliance Industries is scaling up renewable and green hydrogen projects as part of its vision for energy transformation in India. Its integrated assets and investment in electrolyzer technology strengthen India’s position in the global hydrogen economy.

28. Saudi Arabian Oil Company (Saudi Aramco)

Saudi Aramco brings vast expertise in global energy logistics to its green hydrogen initiatives, focusing on large-scale export and supply chain integration. The company’s investments support energy transition efforts in the Middle East and abroad.

29. Siemens AG

Siemens leads the development of cutting-edge electrolyzer technologies and turnkey hydrogen plants. Its digital and automation capabilities drive efficiency in large-scale hydrogen production for industrial clients.

30. Thermax Limited

Thermax merges process engineering with clean energy expertise, offering integrated biomass gasification and hydrogen solutions. Its strengths in customized process design support industrial decarbonization in growing markets.

31. Topsoe A/S

Topsoe is recognized for advanced catalysts and solid oxide electrolyzer innovation. The company's deep chemical processing knowledge supports efficient green hydrogen production at scale.

32. Toshiba Corporation

Toshiba pioneers solid oxide fuel cell and electrolyzer technologies, contributing to resilient and scalable hydrogen ecosystems. Their R&D prowess fosters breakthroughs in next-generation, low-emission energy systems.

33. Uniper SE

Uniper is actively developing green hydrogen hubs and providing renewable-based energy to heavy industry and power sectors. Their integrated approach enables robust commercial offtake and supports Europe’s climate objectives.

Conclusion: Unlock Strategic Growth with Green Hydrogen Market Intelligence

The green hydrogen market is set for explosive growth, with leading companies driving new technologies, investments, and integrated value chains. To make informed decisions and identify the best partnership and investment opportunities, leverage the actionable competitive analysis found in the Green Hydrogen Market by Production Process, Technology, End-Use Industry, Application – Global Forecast 2025-2030. Access the latest insights now to stay ahead in the rapidly evolving green hydrogen industry.