佐山聡
is a Japanese professional wrestling and martial arts promotion founded in 2005 by Satoru Sayama. It runs shows every two or three months, and feature both pro wrestling activities and a variety of martial arts bouts, like mixed martial arts, kickboxing and Seikendo-style competitions. It uses top wrestlers from other promotions as well as its own talent, and has had working agreements with Toryumon Mexico, Battlarts and Dradition.