A pioneer in OEM rice flour processing that started rice flour milling operations in 2010. Maintains a strict 100% gluten-free environment with absolutely no wheat flour used in the factory. Mills rice flour, brown rice flour, sprouted brown rice flour, and mochi flour from various rice varieties including Koshihikari from Uonuma. Minimum milling lot of 30 kg.

A 100% gluten-free food manufacturer that started rice flour milling operations in 2010. Achieves a completely gluten-free environment with absolutely no wheat flour handled in any factory. Provides contract rice flour milling and OEM production using Koshihikari rice from Uonuma. Minimum milling lot of 30 kg.

A koji amazake specialty shop founded in 2009. The company produces koji-based drinks (amazake) utilizing traditional brewing techniques from Niigata's miso and sake breweries. Original amazake OEM contract manufacturing is offered nationwide from the company's own factory. Strengths include small-lot production, flavored amazake development, and product development using local agricultural products.

A long-established Niigata company founded in 1897. Operates an integrated system from rice production to sales. Products include packaged mochi, retort-pouch rice, and rice flour.