BG is a French manufacturer of accessories for woodwind and brass instruments, founded in 1985 by Franck Bichon and based in Chaponost, near Lyon. The company is a family-run workshop focused on Made in France production, with a catalog that spans ligatures, mouthpiece cushions, neck straps and harnesses, swabs, care cloths, pad dryers, reed performers, and stands for saxophone, clarinet, oboe, flute, bassoon, and brass instruments.

The brand is best known for its ligatures, offered across several lines including Revelation, Tradition, Flex, Duo, and Super Revelation, each designed to affect reed response and tone differently. Alongside ligatures, BG's Zen and Comfort neck straps and harnesses are widely used by saxophonists, and its mouthpiece cushions are a common accessory for both clarinet and saxophone players.

BG accessories are distributed through woodwind specialist retailers worldwide and are a staple in band and orchestra settings for players at all levels. The brand's endorsers include clarinetist Ricardo Morales and saxophonist Greg Osby.

BG has 3 products cataloged on Equipboard, including Ligatures and Straps. Their gear is featured by 1 artist, with the strongest followings in Rock, Pop, and Metal. Notable users include Enrose.