Troester Dairy, 175 Cannon Rd, Mifflinburg, PA 17844, US

Harrisburg Dairies provides milk and other dairy products to business customers in Pennsylvania, Maryland, New Jersey, Virginia, Delaware and Washington, D.C. Its products include whole milk, skim milk, cream, orange juice, fruit punch, lemonade, iced tea, green tea and peach tea cooler. Its products are distributed in a variety of sizes, including plastic gallons, pints, quarts and eight ounce paper cartons. Harrisburg Dairies also has its own farm inspectors and an onsite laboratory where samples of raw milk are tested for antibiotics and bacteria. Harrisburg Dairies was founded in 1931 and is based in Harrisburg, Pa.