ALSOK Co Ltd, formerly Sohgo Security Services Co Ltd, is a Japan-based company mainly engaged in the security business. The Company operates through four business segments. The Security Business segment is engaged in mechanical security business, HOME ALSOK business, stationed security business and security transport business. The FM Business segment is engaged in facility construction, including piping and electrical work, facility management, environmental hygiene management, cleaning management, inspection and construction of firefighting equipment, and sales of various disaster prevention equipment. The Nursing Care Business segment provides home nursing care support, visiting nursing care, day care and facility nursing care. The Overseas Business segment provides stationed security services and mechanical security services, as well as facility management. The Company also engages in businesses related to supporting foreign nationals with specific skills.