Hansjörg Herrmann

ARTUS Bautrocknung- und Sanierungsgruppe GmbH is a nationwide partner of the construction and real estate industry in Germany. The company is based in Isernhagen, Germany and has subsidiaries in Germany. The German company's services include drying and heating as well as comprehensive damage regulation of properties after fire, water, mold, and more. The CEO of the private company is Josef Bölle.

MANN+HUMMEL GmbH engages in the manufacture and development of air filtration systems. It specializes in air cleaners and intake systems, liquid filter systems, solutions for alternative drives, industrial filters, indoor air quality, fine dust eater, digital transformation, water treatment, waste water treatment, and membrane filtration for food and dairy products. The company was founded by Adolf Mann and Erich Hummel in 1938 and is headquartered in Ludwigsburg, Germany.

MANN + HUMMEL International GmbH & Co. KG operates as a management holding company. It acquires and manages businesses, which engage in the development, production, and distribution of metal and plastic products. These include filters and filter systems with applications in the automotive sector, as well as air filtration and water solutions for indoor, outdoor, cleanroom, and industrial applications. The company was founded on September 16, 2014 and is headquartered in Ludwigsburg, Germany.

Unternehmensgruppe Theo Müller SECS manufactures and distributes dairy products. It operates its businesses through its brands such as müller, SACHSENMILCH, Weihenstephan, Almof, Loose, TMA, Pragolaktos, Homann, NADLER, Lisner, NORD FISH, and polarica. The company was founded by Ludwig Müller in 1896 and is headquartered in Luxembourg.

Mann + Hummel Holding GmbH operates as a holding company with interest in developing and producing industrial filters and systems for the mechanical engineering and automotive industries. The company is headquartered in Ludwigsburg, Germany.