Di-Nikko Engineering Co., Ltd. engages in the electronic module contract processing of office business, industrial, and social life equipment. It operates through the following geographical segments: Japan and Asia. The Japan geographical segment includes staffing business, business contracting business, office equipment sales business, printed circuit board manufacturing business. The Asia geographical segment engages in the contract processing business for electronic components incorporated in office business equipment, industrial equipment, optical equipment, and social life equipment. The company was founded by Yukio Yamaguchi on September 17, 1979 and is headquartered in Nikko, Japan.