Daisan Co., Ltd. engages in the construction business. It operates through the following segments: Construction Services, Product Sales, Overseas, and Others. The Construction Services segment provides bike scaffolding construction, exterior construction, and safety consulting services. The Product Sales segment manufactures building hardware and temporary equipment, and sells general temporary materials used for mid-to-high-rise building work and bridges. The Overseas segment includes dispatchment of workers to petroleum chemical plants; thermal insulation work centered on scaffolding work; and cleaning business for offices. The Others segment handles consignment fees and covers insurance agency services. The company was founded on April 1, 1975 and is headquartered in Osaka, Japan.