This company keeps caffeine lovers buzzing. Diedrich Coffee is a leading coffee producer and wholesale supplier that distributes coffee products to retailers and foodservice customers. The company produces a variety of specialty coffee blends and flavors under the brands Coffee People, Diedrich Coffee, and Gloria Jean's. Its primary product is K-Cup single-serving portion packs, produced under license for Keurig's single-service coffee machines. Diedrich Coffee produces and distributes fresh roasted coffee from its facility in California. In 2010 the company was acquired by Green Mountain Coffee Roasters.