Sankyo Seiko Co., Ltd. operates in the fashion, textile, and real estate businesses in Japan and internationally. It offers women's and men's wear, loungewear, sports, and outdoor products under the DAKS and LEONARD brands, and also imports and exports its branded products. The company is involved in leasing, building maintenance, and interior decoration, including rental of offices, halls, and buildings, as well as brand licensing. Founded in 1920, it is headquartered in Osaka, Japan.