Modulus Guitars

Modulus Guitars
Company typePrivate
IndustryMusical instruments
Founded1978; 46 years ago (1978)
FounderGeoff Gould
Headquarters
Area served
Worldwide
ProductsBass guitars
Websitemodulusgraphite.com

Modulus Graphite (formerly, Modulus Guitars) is an American manufacturer of musical instruments best known for building bass guitars with carbon fiber necks. The company, originally called Modulus Graphite, was founded in part by Geoff Gould, a bassist who also worked for an aerospace company in Palo Alto, California, and coworker Jerry Dorsch. When they split, Jerry started Graphite Guitar Systems in Washington state.