Rapco

Recording King

Red Witch

Regaltip

Remo

Resonans

Rhythem Tech

Rickenbacker

Rico

Right On

Roc N Soc

Roche Thomas

Rock Locks

Rock N Roller

Rockett Pedals

RockSlide

Rocktron

Rogers

Roland

Rolls

Roosebeck

Ross

Rotosound

Rovner

RTOM

Ruby Tubes

Runyon

Sabian

Samson

Santos Hernandz

Savannah

Savarez

Scandalli

Schaller

Schecter

SE Electronis

Seagull

Sebago Sound

Selmer

Seydel

Seymour Duncan

Shadow

Sher

Sherman

Shubb

Shure

Signalflex

Silvio Marotta

Singular Sound

Skb

Skreddy Pedals

Slingerland

Slug

Snark

Sonor

Souldier

Source Audio

Sovtek

Sperzel

Sprague