Powerhouse Amuse is led by Hideki Tanabe, a legendary tuner with an eye for quality and functional design. Tanabe-san built the world famous "Carbon R", a full dry carbon FR time attack R34 GT-R in 2003. Tanabe-san continues to build his GT-R tuning legacy with the Amuse R35 GT-R "Phantom" which as of June 2008 is the world's fastest time attack R35 GT-R.

Mines is led by Michizo Niikura, a skilled master at GT-R tuning. Mines trademark style is extremely high performance all while retaining comfort and subtle styling. Mines refined tuning style is remarkable as they consistently set top records in quiet, comfortable and street legal cars. Mines parts can best be described and mature and refined.

Top Secret is led by the notorious Kazuhiko "Smoky" Nagata. Innovation, style and raw performance are what Top Secret is known for. Top Secret year after year wows audiences with their award winning demo cars which historically have dominated quite literally every competition category. Top Secret has gained records and championships in the following areas: Top Speed, Drag, Drift, Time Attack, Super Taikyu, Hill Climb, March Cup, and Car Shows.