In order of the end credits:
Akito-Z
Hiroyuki Maruyama
Nobuyoshi Sano
Saori Kobayashi
Takafumi Nishimura
Yoshitaka Hirota
Yu Miyake
http://www.youtube.com/watch?v=Kf43Z...ailpage#t=518s
No idea who the first two guys are. Akito-Z is listed as an employee/contractor of "Pencil House Production" which brings up no relevant google results.
Hiroyuki Maruyama is listed as an employee/contractor of TTS Products Co., Ltd. Whatever that is. Hirota is also listed under this company. I don't know enough of Hirota's background to say what the link is.
Anyway... someone, please, rip this soundtrack now. ;.;