MBK Entertainment is known for managing multiple successful K-pop artists, such as T-ara, DIA, Davichi, SeeYa, F-ve Dolls, Shannon, Coed School, and SPEED.

The company was absorbed by Mnet Media in 2006, following Kim Kwang-soo joint with CJ Group as their director.

[3] In May 2018, Kim Kwang-soo and its subsidiary label The Unit: Idol Rebooting Project Culture Industry Company (then-known as PocketDol Studio) were revealed to have a secret partnership with PD Han Kyeong-cheon to produce survival program The Unit: Idol Rebooting Project.

[4][5] In October 2018, MBK and MBC launched a talent show titled Under Nineteen, a contest for male trainees under the age of 19 years old to compete for a spot to be in a new K-pop idol group 1the9.

[6] In April 2020, two contestants representing MBK in Produce X 101, Hangyul and Dohyon debuted as duo H&D under PocketDol Studio.