Björn Irtel

Part of Aerzener Maschinenfabrik GmbH, Aerzen Digital Systems GmbH manufactures and supplies twin shaft rotary piston machines. The company is based in Hameln, Germany. The CEOs are Klaus Peter Glöckner, Klaus-Hasso Heller, Lutz Geerken. The German company was founded in 2009.

Kelvion Holding GmbH manufactures and develops heat exchangers. Its products include compact fin heat exchangers, plate heat exchangers, single tube heat exchangers and wet cooling towers. The company was founded by Otto Happel in 1920 and is headquartered in Bochum, Germany.

Part of Aerzen International Sales GmbH, RKR Gebläse und Verdichter GmbH is a German company that manufactures displacement blowers, screw compressors, and turbo blowers. The company is based in Rinteln, Germany. The CEOs are Lothar Stoll and Klaus Peter Glöckner. The company was founded in 1977 by W. Rauchfuss and W. Kettler.

Part of Aerzener Maschinenfabrik GmbH, Aerzen Machines Ltd. is a British company that supplies blowers, screw compressors, and gas meters. The company is based in Loughton, UK.

Part of Aerzener Maschinenfabrik GmbH, Emmerthaler Apparatebau GmbH is a German company that specializes in the manufacturing of tailor-made containers, pressure containers, pressure silencers, and piping of aggregates and systems. The company is based in Emmerthal, Germany. With over 60 years of experience, the company offers its customers a reliable and established partner in the field of welding techniques. The company also offers series-suitable robot welding and have a modern robot welding system that is an interesting alternative in series production of printing containers for many applications. The company guarantees the highest possible quality standards and concentrates entirely on their customers' requirements and wishes. The company was founded in 1951 by Gottfried Thomas, and the CEOs are Olaf Marquardt-Etienne and Klaus-Hasso Heller.

Sommerfeld AG constructs and maintains football and golf sports fields. The private company is based in Edewecht, Germany. The German company was founded in 1972. The CEO is Frank Sommerfeld.

Allianz Versicherungs-AG engages in the non-life insurance business. It provides general accident, liability, vehicle, legal expense, fire, credit and surety, as well as transport insurance services. The company is headquartered in Munich, Germany.