Arcus: Makers of bows for stringed instruments.
Barbera Transducer Systems: Offers violin and double bass pickups.
Bois d'Harmonie: Viola, violin and cello accessories including pegs, tailpieces , endpins and chinrests.
Concord Musical Supplies: Violin, viola, cello, and bass strings, supplies and accessories.
Milo Stamm Ponticelli: Offers bridges for various bowed string instruments.
Super-Sensitive Musical String Company: Manufacturer of strings, rosins and accessories for violin, viola, cello and bass.