Shamrock Foods Company manufactures and distributes food and food-related products in the United States. Its products include cleaning supplies, dairy, groceries, milk, frozen foods, Mexican foods, Pacific Rim foods, papers and disposables, specialty produce, seafood, and supplies and equipment. The company, through its subsidiaries, operates as a dairy in the Southwest, as well as a foodservice distributor. It offers non-food products, janitorial supplies, beverages, and dry goods. The company also operates cash and carry stores in the Southwest. It has distribution centers in Phoenix, Arizona; and Denver, Colorado. Shamrock Foods Company was founded in 1922 and is headquartered in Phoenix, Arizona.