Maruichi Co., Ltd. engages in the food industry. It operates through the following segments: Marine, General Food, Livestock, Marumizu Nagano Prefecture Water Group, and Others. The Marine segment sells marine goods and frozen food. It also manufactures and markets processed marine products. The General Food segment sells processed food and confectioneries. The Livestock segment manufactures and sells livestock and processed livestock products. The Marumizu Nagano Prefecture Water Group segment handles food wholesale business mainly in the Nagano Prefecture ares. The Others segment includes distribution and cold storage, insurance agency, and sales of office and communication equipment. The company was founded by Yoshio Nishina on January 8, 1951 and is headquartered in Nagano, Japan.