Toso Co., Ltd. engages in the manufacture and sale of interior design products and building materials. It operates through the Interior Decoration and Others segments. The Interior Decoration segment includes purchase and sell of interior decoration related products such as curtain rails, blinds, roll screens, Roman shades, and other related products. The Others segment includes nursing care and commissioned logistics services. The company was founded in September 1949 and is headquartered in Tokyo, Japan.