Information on OOTOYA stores around the world. Available in Japan, USA, Thailand, Taiwan, Hong Kong, Indonesia, Singapore, and Vietnam.

OOTOYA HOLDINGS CO., LTD. is a holding company that manages OOTOYA Corporation and other operating companies engaged in the restaurant business overseas. OOTOYA Co., Ltd. is also a company that operates restaurant chain stores that focus on Japanese food. The company operates a nationwide chain of "Otoya Gohan-dokoro" restaurants, which offer Japanese set meals with a focus on home-style cooking.

The company has been trying to differentiate itself from other restaurant chains by using a system where food is prepared and served at each store without a central kitchen, which is called homemade cooking, such as in family restaurants, but due to sluggish business performance, the company has been using cut vegetables and plans to introduce a central kitchen through TOB.