Leprino Foods is an American company with headquarters in Denver, Colorado that produces cheese, lactose, whey protein and sweet whey. It is the worlds largest maker of mozzarella cheese. Leprino Foods was founded by James Leprinos father Mike Leprino in 1950 as a family-owned market selling grocery items and handmade cheese in Denver. It was first sold under the Gina Marie brand. Leprino Foods has facilities in Waverly, New York; Remus, Michigan; Allendale, Michigan; Greeley, Colorado; Fort Morgan, Colorado; Roswell, New Mexico; Singapore; Tracy, California; and Lemoore, California. It operates plants in Northern Ireland and Wales. The companys cheeses include mozzarella, reduced-fat Monterey jack, provolone, reduced-fat cheddar and various cheese blends, mainly for pizzeria and foodservice operators, frozen food manufacturers and private label cheese packagers. In 2009, it was ranked by Forbes as the 165th largest private company in the United States.