Daisan Co., Ltd. engages in the construction business. It operates through the following segments: Construction Services, Product Sales, and Others. The Construction Services segment provides bike scaffolding construction, exterior construction, and safety consulting services. The Product Sales segment engages in the sale of bike parts and general provision materials for high-rise buildings and bridges construction. The Others segment engages in the outsourcing services and insurance agency services. The company was founded in April 1975 and is headquartered in Osaka, Japan.