The agency was established to meet the management needs of Jaejoong, Junsu and Yoochun, former members of TVXQ, after the trio filed a lawsuit against their former record label, S.M.

Baek invested heavily in building the newly created band, JYJ's image and credibility after the Korean entertainment industry closed its doors on the artists perceived as "rebels" for going against their previous management.

[1][2] On 8 March 2013, actor Lee Jung-jae signed on to be exclusively managed by C-JeS Entertainment.

He reportedly chose C-Jes after working with Song Ji-hyo in movie New World.

[4][5][6] On 10 July 2015, Song Ji-hyo ended her contract with C-JeS Entertainment after 4 years.