Infinite & Lovelyz & Golden Child &Rocket Punch 

All these groups are under Woollim Entertainment.

Zion.T & Somi

Both Zion.T and Somi are promoting under The Black Label.

Monsta X & Cosmic Girls (WJSN)

Starship Entertainment

Apink & Victon

Plan A Entertainment

BAP & SONAMOO & TRCNG

BAP members left the company, the other two hoobae groups are still under TS Entertainment.

BEAST & BTOB

Both ballad prince group debuted at Cube Entertainment. Beast members left the company and going on their way under the name of Highlight, BTOB are still under Cube Entertainment.

BLOCK B & ATEEZ

Block B debuted at Stardom Entertainment, but then had filed a suit against their agency and left the company. They moved on to the Seven Season company established for them in 2013. Seven Season founder launched another company called KQ to discover new talents. ATEEZ debuted as the first idol group of this new company called KQ.

MAMAMOO & ONEUS

RBW Entertainment

N.FLYING & SF9

FNC Entertainment