EXTREMEX is a main unit under Up-Front Agency and the Hello! Project banner. The unit is produced by Hello! Project producer, Tsunku; of whom also happens to write most of the unit's songs. EXTREMEX currently consists of three main groups and fourteen kenshuusei members, as well as seventeen SECRET Trainees members and has been active since late 2012.
- Hugs & Kiss
- CHO Kira
- CR8ZY Love
- Flairie Girls
- EXTREMEX Kenshuusei (Training Program)
- SECRET Trainees Group (Training Program)