Members: Yama-B, Toshiyuki Sugimori, Issy (8), Nagarekawa Yuichiro, Hideki Akiguchi

Formed in 1998, GUNBRIDGE is the project that launched YAMA-B's career. Due to the establishment of Galneryus in 2001, GUNBRIDGE was largely dormant for over a decade. Then, in February 2012, it was revived as a full-fledged band.

As per YAMA-B's conservative musical sensibilities, GUNBRIDGE play a more restrained, less flamboyant brand of power metal than Galneryus. The band's lyrics are almost exclusively in English.