As the industry later expanded, the APA emerged as the largest salmon packer in Alaska with canneries that stretched from Bristol Bay, Chignik, Karluk, Cook Inlet, and the Southeast Alaska panhandle. The company's various canneries were identified as "Diamonds" followed by an initial including: the Diamond NC was their Clark's Point, Alaska cannery (after its originator the Nushagak Canning Co.), the Diamond E (Egegik), Diamond J and X (Kvichak River) Diamond W (Wrangell). On their boats and frequently in company correspondence the word diamond was not used but a diamond was drawn around the cannery initial. The Diamond NC cannery in Clark's Point, built in 1888 is still in existence but has not been used as a cannery since 1950. The Diamond M and Diamond O cannery in South Naknek built in 1895 is still in operation today.