Granger Amplification is a manufacturer of custom, hand-wired guitar amplifiers, founded by Curt Granger in 2007. Curt Granger, the founder, possesses a background in music, electronics, and audio engineering, with experience as a guitarist, audio producer, and electronic technician. He started building, repairing, and modifying amplifiers for friends and himself before officially establishing Granger Amplification. The company offers customization options, catering to individual preferences.

Source: Granger Amplification website (22 August 2023)