ZIEH-FIX is a German specialist in locksmithing, opening technology, access tools, and security technology, operated by A. Wendt GmbH in Bergheim, Germany. The company develops, manufactures, and sells professional opening tools and related equipment. Main product areas include lock-opening tools, lock-picking tools, key blanks, lock cylinders, security products, and car-key programming equipment.

Argon Electronics was established in 1987 and has since become a world pioneer in the development and manufacture of hazardous material detector simulators, most notably in the fields of military Chemical, Biological, Radiological and Nuclear (CBRN) defense. Simulators have applications from civil response to unconventional terrorism and accidental release and international treaty verification, with a growing presence in nuclear energy.