Daiichi Kosho Co., Ltd. (株式会社第一興商) is a Japanese electronics and aircraft manufacturer that was founded in 1973 and is headquartered in Tokyo.

Between about 1992 and 2003 the company branched into the design and manufacture of paramotor harnesses, canopies and engines.

The company produced several designs of aircraft engines, including the DK 472.

[1][2][3] In 1997, Daiichi Kosho entered into the Japanese music industry through the launching of its own record label, Gauss Entertainment (which merged with now-subsidiary Tokuma Japan Communications in 2005).

In 2001, the company acquired two other record labels: Nippon Crown (former subsidiary of the Mitsubishi keiretsu) and Tokuma Japan Communications (former subsidiary of Tokuma Shoten).