United Parcel Service, Inc. (UPS) is an American multinational company that provides shipping and receiving UPS customer service along with supply chain management. The company was founded in 1907 as the American Messenger Company, which specialized in telegraphs. Today, UPS is one of the world’s largest shipping couriers and a Fortune 500 company. It is primarily known for its ground shipping services and the UPS Store, which is a retail chain that helps with UPS shipments and provides tools for small businesses. UPS offers air shipping on an overnight or two-day basis and delivers to post office boxes through two services: UPS Mail Innovations and UPS SurePost.