Cambro Manufacturing develops, manufactures and markets food service, storage and preparatory materials for the worldwide foodservice industry. The company offers a diverse line of trays, plate covers, drinkware, dinnerware, serving bowls, catering supplies, food pans and food storage containers. Cambro was founded in 1951 by brothers Bill and Argyle Campbell when Bill invented the Camtray and Argyle marketed the tray to the American Hospital Supply Corporation.