有機JAS認証を取得した自社農場で野菜を栽培し、自社工場で青汁・にんじん飲料を一貫生産する農業生産法人。特許取得の特殊搾汁機を使用し、栄養価を多く残す独自搾汁技術が特徴。食品添加物不使用の飲料OEMにも対応。

A leading manufacturer and distributor of dried sweet potato established in 1948, headquartered in Hitachinaka, Ibaraki Prefecture. The company operates over 400 varieties of agricultural processed products and maintains an integrated system where subsidiaries handle sweet potato seedling cultivation and raw material production. In addition to dried sweet potato, the company handles kinako, potato starch, and Japanese flour products, and supplies OEM and private label products to supermarkets, convenience stores, and other retailers.

A food manufacturer specializing in agricultural dried products, founded in 1948 and based in Hitachinaka, Ibaraki Prefecture. As a specialized dried sweet potato manufacturer, it holds 90% of Japan's national production share in Hitachinaka. The company maintains a vertically integrated system covering seedling cultivation, raw material production, processing, and packaging. With over 400 product items in its portfolio, it also offers soybean-processed foods such as kinako (roasted soybean powder).

A marine products processor in Ibaraki Prefecture, originally founded as Saito Suisan in 1950. Specializes in tsukudani (simmered preserves) production, boasting an annual output of 200 tons (approximately 10% of Ibaraki Prefecture's tsukudani marine processing volume). Directly distributes 40 varieties of OEM-manufactured tsukudani to 53 wholesale markets nationwide. Received the Prefectural Governor's Award in 2021. Accommodates orders from small lots.

A dairy and plant-based milk manufacturer headquartered in Ishioka City, Ibaraki Prefecture, operating since 1941. As part of the Shoei Foods Group, provides commercial dairy and powdered products. Entered the almond milk business in 2001 leveraging nut processing technology, and leads the plant-based milk market with its Rich Almond Milk brand. Also handles OEM contract manufacturing.

A freeze-dried product specialist manufacturer established in 1998. Part of the Kamisarieight Group. Manufactures freeze-dried instant soup products including egg soup, miso soup, and pork soup. Handles OEM production for major food manufacturers.

Operates an OEM/ODM product development business specializing in frozen Chinese-style prepared foods. Manufactures gyoza, shumai, baozi, ravioli, cheese gyoza, and more. Also accommodates contract manufacturing based on clients' recipes and offers ODM proposals.

An instant noodle, cup noodle, and dried noodle manufacturer founded in 1915. The company frequently supplies products as private brands. Known for high-volume supply in the affordable price segment.

Founded in 1916 (Taisho 5), a long-established manufacturer with over 100 years of history specializing in tsukudani and eel, traditional products of Kasumigaura. OEM manufacturing is specialized in nori tsukudani. Adopts safe manufacturing methods incorporating HACCP principles. Accepts orders from a minimum of 20kg.