Industrial DeNOx Systems and Services Global Market Report 2025

The industrial DeNOx systems and services market size has grown strongly in recent years. It will grow from $5.91 billion in 2024 to $6.42 billion in 2025 at a compound annual growth rate (CAGR) of 8.7%. The growth in the historic period results from increasing industrialization, growing power generation demand, rising environmental regulations, expansion of manufacturing sectors, and increasing awareness about air pollution.

The industrial DeNOx systems and services market size is expected to see strong growth in the next few years. It will grow to $8.85 billion in 2029 at a compound annual growth rate (CAGR) of 8.4%. The growth in the forecast period results from rising adoption of selective catalytic reduction, growing investment in renewable energy projects, increasing focus on emission control, expansion of automotive and construction industries, and rising government incentives for clean technologies. Major trends in the forecast period include technology advancements in selective catalytic reduction and selective non catalytic reduction systems, innovations in low nitrogen oxide burners, developments in IoT enabled emission monitoring, research in advanced catalyst materials, and sustainable DeNOx solutions.

The rising industrialization is expected to drive the growth of the industrial DeNOx systems and services market in the coming years. Industrialization is the process of transforming an economy from primarily agricultural to one based on the manufacturing of goods, supported by the development of industries, infrastructure, and technological advancements. The increase in industrialization is fueled by growing demand for mass production of goods due to expanding global populations and urbanization. Industrial DeNOx systems and services help reduce nitrogen oxide emissions from manufacturing and energy processes, ensuring cleaner operations and compliance with environmental regulations. For example, in September 2025, Trading Economics, a U.S.-based platform providing economic data, reported that industrial output in Saudi Arabia grew 6.5 percent year-on-year in July 2025, accelerating from a revised 6.1 percent growth recorded in June. Therefore, rising industrialization is driving growth in the industrial DeNOx systems and services market.

Leading companies in the industrial DeNOx systems and services market are investing in high-performance gas purification systems for applications such as glass line production to improve emission control efficiency, reduce nitrogen oxide output, and comply with strict environmental regulations. A high-performance gas purification system is advanced technology designed to remove harmful gases and impurities, including nitrogen oxides (NOx), from industrial exhaust streams to ensure cleaner emissions and regulatory compliance. For instance, in October 2024, GEA Group AG, a Germany-based engineering company, received a contract for Line II, which includes a state-of-the-art GEA gas cleaning system integrating a DeNOx reactor along with storage, transport, and reagent dosing components. This system achieves a significant reduction in nitrogen oxide (NOx) emissions to 500 mg/Nm³, supporting Pilkington’s compliance with stringent environmental regulations and sustainability goals. GEA’s technical collaboration also prepared the plant for future energy efficiency improvements, including potential integration of a waste heat recovery system.

In September 2024, Somas Instrument AB, a Sweden-based manufacturer of control and on/off valves, partnered with Accelleron to enhance service support for valves used in exhaust aftertreatment systems, including selective catalytic reduction (SCR) and exhaust gas recirculation (EGR). Under this partnership, Accelleron was appointed as the authorized global service provider for Somas’ marine customers, with trained engineers ensuring reliable maintenance and performance. The collaboration strengthens global service capabilities and operational reliability for DeNOx systems in the marine sector. Accelleron is a Switzerland-based provider of turbocharging, fuel injection, and digital solutions for the marine and energy industries.

Major players in the industrial denox systems and services market are Siemens AG, Mitsubishi Heavy Industries Ltd., Alstom SA, Johnson Matthey Plc, Yara International ASA, Doosan Enerbility Co. Ltd., GE Power, Bilfinger SE, Black & Veatch Holding Company, Emerson Electric Co., FLSmidth & Co. A/S, KBR Inc., Topsoe A/S, Isgec Heavy Engineering Limited, Babcock & Wilcox Enterprises Inc., Steinmüller Engineering GmbH, Ducon Technologies Inc., Burns & McDonnell Engineering Company Inc., Hitachi Zosen Inova AG, and Kanadevia.

North America was the largest region in the industrial DeNOx systems and services market in 2024. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in industrial DeNOx systems and services report are Asia-Pacific, Western Europe, Eastern Europe, North America, South America, Middle East and Africa. The countries covered in the industrial DeNOx systems and services market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report’s Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

The rapid escalation of U.S. tariffs and the resulting trade tensions in spring 2025 are significantly impacting the utilities sector, particularly in power generation, grid infrastructure, and renewable energy projects. Higher duties on imported equipment such as turbines, transformers, solar panels, and battery storage systems have increased capital and operational costs for utility providers, forcing them to reconsider project timelines or pass on expenses to consumers through higher energy rates. The water and waste management segments are also affected, with tariffs driving up the cost of essential machinery, piping, and treatment technologies. Additionally, retaliatory tariffs have disrupted global supply chains for critical raw materials like rare earth metals used in clean energy technologies, further complicating the transition to sustainable energy sources. The sector must now prioritize domestic sourcing, digitalization, and efficiency-driven innovations to manage escalating costs while ensuring energy security and regulatory compliance.

The industrial DeNOx systems and services market research report is one of a series of new reports that provides industrial DeNOx systems and services market statistics, including the industrial DeNOx systems and services industry global market size, regional shares, competitors with the industrial DeNOx systems and services market share, detailed industrial DeNOx systems and services market segments, market trends, and opportunities, and any further data you may need to thrive in the industrial DeNOx systems and services industry. This industrial DeNOx systems and services market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenarios of the industry.

Industrial DeNOx systems and services refer to technologies and solutions designed to reduce nitrogen oxide emissions from industrial processes and power plants. These systems use methods such as selective catalytic reduction or selective non catalytic reduction to convert harmful nitrogen oxide gases into harmless nitrogen and water. They play a vital role in meeting environmental regulations and improving air quality.

The main services of industrial DeNOx systems and services are installation and engineering services, maintenance and repair services, replacement and retrofit services, and consulting and advisory services. Installation and engineering services refer to the design, setup, and integration of DeNOx technologies into industrial facilities to reduce nitrogen oxide emissions and comply with environmental regulations. The key technologies include selective catalytic reduction, selective non catalytic reduction, low nitrogen oxide burners, and others. These systems are delivered through on site installation, remote monitoring, and turnkey solutions. Major applications include power plants, industrial boilers, cement plants, chemical plants, refineries, and others, with primary end uses in industrial facilities, power plants, and marine applications.

The industrial DeNOx systems and services market consists of revenues earned by entities by providing services such as consulting and feasibility studies, system design and engineering, installation and commissioning, operation and maintenance, performance testing and monitoring, catalyst management and replacement, reagent supply and handling, emergency repair and troubleshooting, operator training, and retrofit and upgrade services. The market value includes the value of related goods sold by the service provider or included within the service offering. The industrial DeNOx systems and services market also includes sales of injection lances and nozzles, ammonia or urea storage tanks, dosing skids and pumps, ductwork and expansion joints, fans and blowers, continuous emissions monitoring systems (CEMS), control panels and instrumentation, and sootblowers. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

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