The Global Automotive Emission Control Catalyst Market was valued at USD 12.2 Billion in 2022 and is projected to reach USD 18.9 Billion by 2029, growing at a Compound Annual Growth Rate (CAGR) of 6.4% during the forecast period (2023–2029). This growth is being driven by stringent global emission regulations, the rising demand for cleaner transportation solutions, and the ongoing shift toward electrification and advanced after-treatment technologies in both passenger and commercial vehicles.

As the automotive industry pushes forward with efforts to reduce environmental impact and comply with evolving standards like Euro 7 and EPA Tier 3, the focus turns to the innovators behind emission control catalysts. These components are essential for converting harmful exhaust gases into less toxic substances, helping vehicles meet regulatory thresholds while supporting the broader goal of sustainable mobility. In this blog, we profile the Top 10 Companies in the Automotive Emission Control Catalyst Industry—a blend of chemical powerhouses, engineering specialists, and technology pioneers who are advancing catalyst efficiency and durability to power a greener future on the roads.

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🔟 1. CDTi Advanced Materials

Headquarters: Oxnard, California, USA
Key Offering: Advanced mixed metal oxide catalysts, diesel particulate filters, and selective catalytic reduction (SCR) systems

CDTi Advanced Materials stands out for its innovative approaches to emission control, particularly in heavy-duty diesel applications. The company develops proprietary catalyst formulations that enhance performance while reducing reliance on precious metals like platinum and palladium. Their technologies are integrated into exhaust systems for trucks, buses, and off-road equipment, helping fleet operators achieve significant reductions in NOx and particulate matter emissions.

Sustainability Initiatives:

• Development of low-precious-metal catalysts to minimize environmental mining impacts

• Partnerships with OEMs to integrate catalysts in hybrid and electric vehicle after-treatment

• Commitment to recycling catalyst materials to support a circular economy in automotive manufacturing

Download FREE Sample Report: Automotive Emission Control Catalyst Market – View in Detailed Research Report

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9️⃣ 2. Clariant AG

Headquarters: Basel, Switzerland
Key Offering: Three-way catalysts, NOx adsorbers, and zeolite-based emission control additives

Clariant plays a crucial role in the catalyst market by providing specialized additives and base materials that improve the efficiency of emission control systems. Their products are widely used in gasoline and diesel engines, focusing on enhancing conversion rates for hydrocarbons, CO, and NOx. With a strong emphasis on R&D, Clariant supports automakers in meeting global emission norms through durable and cost-effective solutions.

Sustainability Initiatives:

• Investment in eco-friendly catalyst substrates derived from renewable resources

• Collaboration with regulatory bodies to develop catalysts compliant with future zero-emission standards

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8️⃣ 3. Klarius Products Limited

Headquarters: Coventry, United Kingdom
Key Offering: Catalytic converters, diesel oxidation catalysts (DOC), and exhaust after-treatment systems

Klarius is a key supplier of complete emission control modules, serving the aftermarket and OEM sectors across Europe and beyond. Known for its robust manufacturing capabilities, the company produces catalysts that are engineered for high thermal stability and long service life, particularly in challenging operating conditions like urban driving cycles.

Sustainability Initiatives:

• Expansion of catalyst recycling programs to recover precious metals and reduce waste

• Innovation in lightweight catalyst housings to improve fuel efficiency and lower overall vehicle emissions

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7️⃣ 4. Ecocat India Pvt Ltd

Headquarters: Pune, India
Key Offering: Platinum group metal catalysts, SCR systems, and retrofit emission solutions

Ecocat India specializes in tailored emission control technologies for the Asian market, where rapid vehicle growth meets tightening regulations. Their catalysts are optimized for two-wheelers and small cars, offering high efficiency in compact designs. The company’s focus on local production helps reduce costs and supports India’s push toward cleaner air in densely populated cities.

Sustainability Initiatives:

• Local R&D centers developing catalysts for electric-hybrid transitions

• Goal to achieve 20% reduction in catalyst production emissions by 2025 through green manufacturing

Download FREE Sample Report: Automotive Emission Control Catalyst Market – View in Detailed Research Report

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6️⃣ 5. Eberspächer Group

Headquarters: Esslingen am Neckar, Germany
Key Offering: Exhaust systems with integrated catalysts, close-coupled converters, and urea SCR technology

Eberspächer excels in holistic exhaust solutions that incorporate advanced catalysts to meet Euro VI and similar standards. Their systems are used in premium vehicles and commercial fleets, emphasizing quick light-off times and superior cold-start performance to minimize real-world emissions.

Sustainability Initiatives:

• Integration of catalysts with active thermal management for enhanced efficiency

• Targets net-zero emissions in production facilities by 2030

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5️⃣ 6. Cummins Inc.

Headquarters: Columbus, Indiana, USA
Key Offering: On-engine catalysts, diesel exhaust fluid (DEF) systems, and integrated emission modules

Cummins is a powerhouse in heavy-duty applications, developing catalysts that handle high exhaust temperatures in engines for trucks and construction equipment. Their innovations include next-generation SCR catalysts that reduce NOx by up to 95%, aligning with global decarbonization efforts in logistics and transportation.

Sustainability Initiatives:

• Advancements in low-temperature catalysts for better urban emission control

• Current output supports over 10 million vehicles annually with compliant emission technologies

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4️⃣ 7. Clean Diesel Technologies, Inc.

Headquarters: South Bend, Indiana, USA
Key Offering: Platinum-based catalysts, retrofit kits, and continuous regeneration traps

Clean Diesel Technologies focuses on retrofitting existing fleets with emission control upgrades, making it easier for operators to comply with regulations without full vehicle replacement. Their catalysts are designed for durability in off-highway and marine diesel applications, providing reliable performance over extended lifespans.

Sustainability Initiatives:

• R&D into non-precious metal alternatives to lower costs and environmental footprint

• Partnerships to deploy solutions in emerging markets for rapid emission reductions

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3️⃣ 8. Tenneco Inc.

Headquarters: Lake Forest, Illinois, USA
Key Offering: Multi-layer catalysts, gasoline particulate filters (GPF), and clean air solutions

Tenneco leads in integrated emission systems for light-duty vehicles, incorporating catalysts that address both regulated and unregulated pollutants. Their technology is pivotal in the transition to real-driving emissions (RDE) testing, ensuring vehicles perform well beyond lab conditions.

Sustainability Initiatives:

• Indigenous development of coated substrates for improved catalyst efficiency

• Collaborations with governments to scale adoption in high-pollution zones

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2️⃣ 9. Umicore SA

Headquarters: Brussels, Belgium
Key Offering: Precious metal catalysts, three-way conversion catalysts, and lean NOx traps

Umicore is renowned for its expertise in precious metals, supplying catalysts that optimize the balance between performance, cost, and environmental impact. Serving major automakers globally, their solutions are at the forefront of reducing tailpipe emissions in gasoline direct injection (GDI) engines.

Sustainability Initiatives:

• Aims for 50% reduction in PGM usage through advanced formulations by 2030

• Major expansion in recycling capabilities to recover 100% of used catalysts

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1️⃣ 10. Johnson Matthey

Headquarters: London, United Kingdom
Key Offering: Diesel oxidation catalysts, SCR catalysts, and base metal catalysts

Johnson Matthey tops the list as a pioneer in catalyst technology, with decades of experience in formulating solutions for automotive exhausts. Their portfolio covers everything from light-duty cars to heavy-duty engines, emphasizing innovations that support hydrogen and alternative fuel vehicles alongside traditional ICEs.

Sustainability Initiatives:

• End-to-end solutions for fuel-agnostic emission control

• Strategic alliances with EV battery producers for hybrid emission technologies

Get Full Report Here: Automotive Emission Control Catalyst Market – View in Detailed Research Report

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🌍 Outlook: The Future of Automotive Emission Control Catalyst Is Cleaner and More Efficient

The automotive emission control catalyst market is evolving rapidly amid global pressures to curb air pollution and combat climate change. While precious metal-based catalysts remain dominant, the sector is pouring resources into PGM-free alternatives, nanotechnology enhancements, and compatibility with electrified powertrains. This transition not only addresses regulatory demands but also opens doors for cost savings and broader adoption in developing regions. Because stricter norms are rolling out worldwide, manufacturers are prioritizing catalysts that offer higher conversion efficiencies at lower temperatures. Furthermore, the rise of electric vehicles is prompting a reevaluation, with catalysts playing a role in fuel cell and hybrid systems. However, challenges like fluctuating precious metal prices persist, pushing innovation toward sustainable sourcing and recycling.

📈 Key Trends Shaping the Market:

• Accelerated R&D in low-emission catalysts for GDI and turbocharged engines in Europe and Asia

• Regulatory mandates for near-zero NOx and particulate emissions by 2030 in major economies

• Digital twins and AI for optimizing catalyst design and performance prediction

• OEM-supplier partnerships to integrate catalysts with advanced driver-assistance systems for holistic emission management

Get Full Report Here: Automotive Emission Control Catalyst Market – View in Detailed Research Report

The companies profiled here are not only controlling automotive emissions—they’re leading the charge toward a low-carbon mobility ecosystem, ensuring safer air for generations to come.