Andrew James MacCallum

A.T.U. Auto-Teile-Unger Handels GmbH & Co. KG owns and operates a chain of car and truck parts retail and repair franchises. The firm also specializes in the retail distribution, installation, as well as maintenance of automotive parts and accessories. Its product portfolio includes tires, alloy rims, airbags, seats, seat covers, batteries, oil, and stereo systems. The company was founded by Peter Unger in 1985 and is headquartered in Weiden in der Oberpfalz, Germany.

Christophorus Holding GmbH operates as a holding company, which engages in the supply of automotive parts and components. The firm's focus areas encompass business investments, shares acquisition, asset management, and equipment rental and leasing. The company was founded in 1985 and is headquartered in Weiden, Germany.

ATU Auto-Teile-Unger Investment GmbH & Co. KG is engaged in the sale of automotive accessories and parts. The company was founded in 1985 and is headquartered in Weiden, Germany.