Frank Wiemer

Werner & Mertz GmbH produces cleaning products for households, and industrial cleaning and commercial kitchens. It offers air fresheners and refill packs, universal cleaners, cream cleaners, glass cleaners, bathroom cleaners, toilet care products, kitchen cleaners, hygiene cleaners, remover-essence products, dishwashing products, detergents, detergent powders, textile softeners, and skin care soaps. The firm also provides floor and furniture care products, disinfection cleaners, floor care and system products, maintenance cleaning products, industrial kitchen hygiene products, sanitary cleaning products, ecological/sustainable products, and industrial cleaners. The company was founded in 1867 and is headquartered in Mainz, Germany.

REWE-ZENTRALFINANZ eG is a holding company, which engages in the operation of grocery stores. It manages REWE, nahkauf, Penny, Sky, Billa, Merkur, BIPA, and DER. The company was founded in 1927 and is headquartered in Cologne, Germany.

METRO AG is a retail company, which engages in the ownership, operation, and management of chain of supermarkets. It operates through the following segments: Metro Cash & Carry, Media-Saturn, Real, and Others. The company was founded on July 25, 1996 and is headquartered in Dusseldorf, Germany.

REWE - Zentral-AG engages in the wholesale trading of food products, as well as hardware and building supplies. It owns supermarkets, hypermarkets, and penny discount outlets. The company was founded on June 20, 1972 and is headquartered in Cologne, Germany.