The Global Carbon-free Ammonia Market was valued at USD 154 million in 2025 and is projected to reach USD 23,430 million by 2034, growing at an exceptional Compound Annual Growth Rate (CAGR) of 107.8% during the forecast period. This explosive growth is being fueled by stringent global decarbonization mandates, the urgent need to decarbonize hard-to-abate sectors like agriculture and shipping, and ammonia’s emerging role as a versatile hydrogen carrier and carbon-free fuel.

As the world accelerates its transition to a net-zero future, the focus turns to the pioneering companies developing the technologies and scaling the production of green and blue ammonia. In this blog, we profile the Top 10 Companies in the Carbon-free Ammonia Industry—a dynamic mix of industrial gas giants, engineering leaders, and energy innovators shaping the future of this critical market.

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🔟 1. Topsoe A/S

Headquarters: Lyngby, Denmark
Key Offering: Solid Oxide Electrolyzer Cell (SOEC) technology, Haber-Bosch catalyst technology

Topsoe is a global leader in catalysis and surface science, playing a pivotal role in advancing carbon-free ammonia production. The company’s high-efficiency SOEC technology produces green hydrogen at a significantly lower cost, which is a crucial feedstock for ammonia synthesis. Their advanced catalysts also optimize the traditional Haber-Bosch process for use with renewable hydrogen.

Sustainability Initiatives:

• Developing the world’s largest SOEC electrolyzer manufacturing facility

• Strategic partnerships for large-scale green ammonia projects worldwide

• Aiming to enable a reduction of 30 million tons of CO2 emissions by 2030 through its technologies

Download FREE Sample Report: Carbon-free Ammonia Market – View in Detailed Research Report

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9️⃣ 2. Thyssenkrupp

Headquarters: Essen, Germany
Key Offering: Alkaline Water Electrolysis (AWE) plants, Uhde® ammonia technology

Thyssenkrupp’s subsidiary, thyssenkrupp Uhde Chlorine Engineers, is a world-renowned supplier of electrolysis plants. Their scalable AWE technology, capable of gigawatt-scale deployment, is essential for producing the vast quantities of green hydrogen required for ammonia synthesis. The company’s Uhde® ammonia process is a benchmark in the industry for efficiency and reliability.

Sustainability Initiatives:

• Scaling up electrolysis capacity to several gigawatts per year

• Engineering some of the world’s first and largest green ammonia projects

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8️⃣ 3. Siemens Energy

Headquarters: Munich, Germany
Key Offering: Proton Exchange Membrane (PEM) electrolyzers, integrated power-to-X solutions

Siemens Energy is a key technology provider for the hydrogen economy, with its PEM electrolyzers offering high flexibility and rapid response times, making them ideal for pairing with intermittent renewable energy sources. The company provides integrated solutions that connect renewable power generation directly to hydrogen and ammonia production.

Sustainability Initiatives:

• Investing in industrializing PEM electrolyzer production for mass scale

• Collaborating on flagship projects like the Haru Oni eFuels plant in Chile

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7️⃣ 4. CF Industries Holdings, Inc.

Headquarters: Deerfield, Illinois, USA
Key Offering: Blue and Green Ammonia production

CF Industries is one of the world’s largest ammonia producers. The company is actively decarbonizing its operations by investing in blue ammonia projects, which involve carbon capture and storage (CCS) at its existing facilities, and exploring green ammonia ventures. Its extensive production and distribution network provides a significant advantage in scaling carbon-free ammonia supply.

Sustainability Initiatives:

• Launching a major blue ammonia project at its Donaldsonville, Louisiana complex

• Targeting a 25% reduction in CO2 emissions intensity by 2030

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6️⃣ 5. Linde Engineering

Headquarters: Pullach, Germany
Key Offering: Air separation units, hydrogen plants, ammonia synthesis technology

Linde Engineering brings a comprehensive suite of technologies for carbon-free ammonia production, from air separation to produce nitrogen to hydrogen production via electrolysis or reforming with CCS. The company’s expertise in building large-scale, efficient chemical plants is critical for making green ammonia economically viable.

Sustainability Initiatives:

• Developing concepts for fully integrated green ammonia value chains

• Focusing on technology to reduce the energy consumption of ammonia production

Download FREE Sample Report: Carbon-free Ammonia Market – View in Detailed Research Report

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5️⃣ 6. Yara International

Headquarters: Oslo, Norway
Key Offering: Green Ammonia production, Clean Ammonia division

Yara is a global leader in ammonia and fertilizer production, with a dedicated “Clean Ammonia” division focused on producing carbon-free ammonia for fertilizer, shipping fuel, and power generation. The company is converting parts of its existing asset base to run on renewable energy and building new green ammonia plants.

Sustainability Initiatives:

• Piloting the first containerized green ammonia supply chain for shipping fuel

• Aiming to capture 5-10% of the emerging clean ammonia market by 2030

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4️⃣ 7. Mitsubishi Power

Headquarters: Yokohama, Japan
Key Offering: Ammonia-capable gas turbines, integrated value chain solutions

Mitsubishi Power is a critical player on the demand side, developing gas turbines that can co-fire with ammonia, thus creating a major new market for carbon-free ammonia as a power generation fuel. The company is also involved in developing entire value chains, from production to utilization, particularly in Asia.

Sustainability Initiatives:

• Successfully testing 100% ammonia combustion in a gas turbine

• Forming alliances to establish ammonia fuel supply chains between producers and power generators

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3️⃣ 8. Air Products and Chemicals, Inc.

Headquarters: Allentown, Pennsylvania, USA
Key Offering: Mega-scale green hydrogen/ammonia production projects

Air Products is making some of the largest single investments in the carbon-free ammonia space. The company is developing multi-billion-dollar, world-scale projects in Saudi Arabia, the United States, and Canada to produce green ammonia for export to global markets, leveraging its expertise in gas handling and logistics.

Sustainability Initiatives:

• Committing over $15 billion to clean energy projects, including green ammonia

• Building the world’s largest green hydrogen-to-ammonia facility in NEOM, Saudi Arabia

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2️⃣ 9. Hydrogenious LOHC Technologies

Headquarters: Erlangen, Germany
Key Offering: Liquid Organic Hydrogen Carrier (LOHC) technology for hydrogen transport

While not a direct ammonia producer, Hydrogenious LOHC is a key enabler for the carbon-free ammonia economy. Its LOHC technology allows for the safe and efficient transport of hydrogen, which can then be used in ammonia synthesis. This solves a critical logistical challenge in creating a global green ammonia market.

Sustainability Initiatives:

• Enabling the long-distance transport of green hydrogen from resource-rich to demand-centric regions

• Partnering with major energy and chemical companies to integrate LOHC into hydrogen value chains

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1️⃣ 10. MAN Energy Solutions

Headquarters: Augsburg, Germany
Key Offering: Ammonia-fueled marine engines, turbomachinery

MAN Energy Solutions is driving demand for carbon-free ammonia by developing two-stroke marine engines that can run on ammonia. As shipping seeks to decarbonize, ammonia is a leading fuel candidate, and MAN’s technology is crucial for creating the market pull necessary to justify large-scale green ammonia production.

Sustainability Initiatives:

• Targeting the delivery of the first ammonia-powered engine by 2024

• Committing to a maritime energy transition with decarbonization technologies

Read Full Report: Carbon-free Ammonia Market – View in Detailed Research Report

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🌍 Outlook: The Future of Carbon-free Ammonia is Fundamental to a Net-Zero World

The carbon-free ammonia market is at a pivotal inflection point. While the traditional fertilizer market provides a massive baseline demand, the explosive growth is driven by its new identity as an energy vector. The industry is mobilizing unprecedented levels of investment to build the production facilities and logistics chains of the future.

📈 Key Trends Shaping the Market:

• Gigawatt-scale project announcements in the Middle East, North America, and Australia

• Strategic partnerships between technology providers, energy companies, and offtakers

• Accelerating policy support, including the US Inflation Reduction Act and European Green Deal

• Rapid technological advancements driving down the cost of electrolysis

Read Full Report: Carbon-free Ammonia Market – View in Detailed Research Report

The companies listed above are not only building a new industry—they are constructing the foundation for a decarbonized global economy.

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