Yamana Gold Customer Service Phone Numbers Customer service: 416-815-0220 Toll-free: 1-888-809-0925   Yamana Gold Headquarters Info, Email, Phone number, Website and live chat Information Founded: 1980 Headquarters: Toronto, Ontario, Canada Key people: Peter Marrone (CEO) Yamana Gold Inc. is a Canadian-based gold producer that began operations in 2003 with significant gold production, gold development stage properties, exploration properties, and