A brewing manufacturer based in Yonezawa, Yamagata Prefecture with 192 years of heritage. Specializes in the manufacturing and sales of miso, amazake, and koji made primarily from rice koji. Offers OEM and ODM contract manufacturing services. In partnership with Koji Company, provides comprehensive support from fermented food product development to package design, including powder processing. Proposes body-friendly products with a commitment to natural materials.

A confectionery manufacturer based in Sakata, Yamagata Prefecture, producing castella cake and dorayaki. Committed to safety, hygiene, and quality materials, the company specializes in products made with domestically sourced ingredients. Has obtained JFS-B food safety certification and offers OEM manufacturing services. Actively develops products leveraging local specialties.

A pickled vegetable OEM manufacturer based in Tsuruoka, Yamagata Prefecture. Specializes in contract manufacturing of pickles utilizing locally-sourced vegetables. Supports product development that combines traditional Northeast Japanese pickling methods with modern consumer needs.

A rice cracker specialist manufacturer in Murayama, Yamagata Prefecture. With the motto of "supporting rice culture and building a prosperous society," manufactures diverse rice crackers including fried crackers, baked crackers, and arare. FSSC22000 certified for rigorous food safety management. Capable of OEM and PB product development and manufacturing with small-batch production equipment and diverse packaging facilities.