Reese's, MARS, and NESTLE are all major competitors of Hershey in the chocolate industry. Reese's is a brand of peanut butter cups created by The Hershey Company in 1928. MARS is an American manufacturer of confectionery, pet food, and other food products, founded in 1911. NESTLE is a Swiss multinational food and beverage company founded in 1866. All three companies are major rivals of Hershey in the chocolate industry.