Diedrich Coffee, Inc., together with its subsidiaries, engages in the wholesale and roasting of coffee in the United States. It offers whole bean and ground coffee, as well as single serve coffee products through a network of office coffee service distributors, chain and independent restaurants, coffeehouses, other hospitality operators, and specialty retailers. The company sells its products under the brand names, including Diedrich Coffee, Gloria Jean's, Coffee People, Black Tiger, Morning Edition Blend, Wiener Melange Blend, Nepenthe Blend, and Flor de Apanas. As of June 24, 2009, it had four franchise outlets. The company was founded in 1972 and is headquartered in Irvine, California.