Nac Co., Ltd. engages in the water delivery and housing businesses in Japan. The company produces and sells home delivery water; and provides finance and insurance services. It also rents and sells pest control equipment and dust control products; and undertakes regular cleaning work and construction contracts for custom-built detached houses. In addition, the company constructs and sells construction-related know-how products and materials of the building department to local construction companies, consulting business, and housing franchise business, as well as solar power generation and energy-saving products. Further, it engages in the cosmetics and dietary supplements business. The company was formerly known as Duskin Tsurugawa Co., Ltd. and changed its name to Nac Co., Ltd. in 1977. Nac Co., Ltd. was founded in 1971 and is based in Tokyo, Japan.