Maruzen Showa Unyu Co., Ltd. engages in the provision of logistics and transportation services. It operates through the following segments: Logistics, Yard Operation and Machine Stevedoring, and Others. The Logistics segment provides freight truck transport, forwarding (truck, rail, ocean transport, coastal transport, and air), harbor transport operations (general, stevedoring, shipboard, onshore, and barge transport), warehouse operations, customs brokerage, packing, ocean shipping and air shipping agent services. The Yard Operations and Machine Stevedoring segment deals with the on-site moving, assembly, filling and yard warehouse storage of raw materials, products, heavy loads, precision machinery, handling of incoming and outgoing shipments and related operations, and machinery rental services. The Others segment provides construction, security services, industrial waste disposal, insurance agent, and vehicle maintenance services. The company was founded by Masahiro Nakamura on August 17, 1931 and is headquartered in Yokohama, Japan.