ADAC Laboratories was a Silicon Valley medical device company specialising in nuclear medicine gamma camera manufacturing and associated nuclear medicine processing computers and software. It was originally located at 10300 Bubb Road, Cupertino, California, 95014, then as the company expanded moved in turn to the following locations. 4747 Hellyer Avenue, San Jose, CA 951, then 255 San Geronimo Way, Sunnyvale, CA, then from ~1993, 540 Alder Drive Milpitas, CA 95035. Although most people called the company ADAC or adaclabs, the name ADAC was an acronym of Analytical Development Associates Corporation. It was incorporated in California on October 14, 1970.