Roland Corporation
Korg
Ibanez
Fender Musical Instruments Corporation
Line 6 (company)
ESP Guitars
Marshall Amplification
Music Man (company)
Seymour Duncan
DiMarzio
Fernandes Guitars
Jackson Guitars
Business division of Roland Corporation
boss.info
Boss is a manufacturer of effects pedals for electric guitar and bass guitar. It is a division of the Roland Corporation, a Japanese manufacturer that specializes in musical equipment and accessories. Wikipedia