Stellex to Acquire Air and Noise Filtration Technology Business from Dürr Group

Adds exhaust air purification technology and sound insulation systems to portfolio of industrial companies

NEW YORK & LONDON--(BUSINESS WIRE)--Stellex Capital Management (“Stellex”), a New York-based private equity firm with more than $5 billion in assets under management, announced today that it has entered into an agreement to acquire the air and noise filtration technology business of Dürr Group, a German mechanical and plant engineering firm specializing in automation, digitalization, and energy efficiency technologies. The transaction is subject to standard approvals and expected to close in the fourth quarter of 2025.

The division of the Dürr Group encompasses the design and manufacture of exhaust air purification technology and sound insulation systems, and as part of the transaction, will become an independent entity within Stellex’s portfolio of industrial technology companies. The Dürr Group previously announced in June 2024 its intention to explore strategic options for the division, generating sales upwards of €407 million in 2024.

Karthik Achar, Partner at Stellex, said, “We look forward to becoming the next steward of Dürr’s Clean Technology Systems Environmental division and we welcome the company into our investment portfolio. We view the division as a global leader in environmental filtration and pollution control solutions - critical technologies that serve a wide range of industrial and adjacent markets. Its long-standing customer relationships are a testament to the company’s engineering excellence. We are eager to partner with the management team and its employees in an effort to shape the next phase of its growth.”

Dr. Sebastian Baumann, Head of the Clean Technology Systems Environmental division, added, “We can look back on a successful development in the environmental technology business and are convinced that we can develop our potential even better as an independent company. With Stellex at our side, new opportunities for growth and innovation are opening up, both in our established business areas and in pioneering technology areas such as carbon capture and heat storage.”

About Stellex Capital Management LLC

With offices in New York, London, Pittsburgh and Detroit, Stellex Capital is a private equity firm with over $5 billion in AUM. Stellex seeks to identify and deploy capital in opportunities that stand to benefit from its operationally focused and hands-on approach to investing. Portfolio companies are supported by Stellex’s industry knowledge, operating capabilities, network of senior executives, strategic insights, and access to capital. Sectors of particular focus include aerospace, defense & government services, transportation & logistics, manufacturing, real economy & business services, food processing and tech-enabled services. Additional information may be found at www.stellexcapital.com.

About the Dürr Group

The Dürr Group is one of the world's leading mechanical and plant engineering firms with particular expertise in the technology fields of automation, digitalization, and energy efficiency. Its products, systems, and services enable highly efficient and sustainable manufacturing processes – mainly in the automotive industry and for producers of furniture and timber houses, but also in sectors such as the chemical and pharmaceutical industries, medical devices, electrical engineering, and battery production. In 2024, the company generated sales of €4.7 billion. The Dürr Group has around 18,400 employees and 139 business locations in 33 countries. As of January 1, 2025, the former divisions Paint and Final Assembly Systems and Application Technology were merged to form the new Automotive division. Since then, the Dürr Group has been operating in the market with four divisions:

• Automotive: painting technology, final assembly, testing and filling technology
• Industrial Automation: automated assembly and test systems for automotive components, medical devices, and consumer goods as well as balancing technology solutions and coating systems for battery electrodes
• Woodworking: machinery and equipment for the woodworking industry
• Clean Technology Systems Environmental: air pollution control and noise