K&G Mouthpieces is a Malta-based manufacturer of professional brass instrument mouthpieces, founded by Dennis Kurun Camilleri, a trombonist with the Malta Philharmonic Orchestra, and Gilbert Spiteri, a mechanical engineer. The company combines Camilleri's decades of performance experience and mouthpiece experimentation with Spiteri's engineering expertise in fluid mechanics and acoustics. K&G is the first mouthpiece maker in Malta to produce a professional brass mouthpiece line.

The product range covers mouthpieces for trombone (tenor and bass), euphonium, tuba, trumpet, cornet, flugelhorn, tenor horn, French horn, and baritone, along with practice buzzers and leather accessories. Their designs emphasize engineered rim profiles, cup shapes, and throat dimensions developed through applied physics. The Masters range represents their premium tier. K&G mouthpieces are distributed through over 30 dealers worldwide, including Thomann, John Packer, and Adams Music, and the brand has been showcased at institutions including Juilliard and the Conservatoire à Rayonnement Régional in Paris.

K&G has built a roster of international endorsing artists spanning brass bands, orchestras, and solo performance, including Daniel Thomas (principal euphonium, Black Dyke Brass Band), Paul Borg (principal tuba, Malta Philharmonic Orchestra), Jonathan Bates (principal tenor horn, Foden's Band), Rachel Neil (solo horn, Fairey Band), and Roderick Bugeja (principal trombone, Malta Philharmonic Orchestra).