CUMICA Corp. engages in the development, construction, real estate sales, and hotel businesses. It operates through the following segments: Development Business, Construction Business, Real Estate Sales Business, and Other Business. The Development Business segment develops and sells condominiums. The Construction Business segment includes the construction of custom-made houses and formwork construction. The Real Estate Sales Business segment includes resale of real estate properties. The Other Business segment includes rental housing mediation and management, and brokerage of real estate. The company was founded by Junji Kawai in September 1970 and is headquartered in Soka, Japan.