The competitors of UPS include:
1. FedEx: A global logistics company that provides a wide range of shipping and delivery services.
2. DHL: A German logistics company that offers international express shipping, e-commerce solutions, and supply chain management services.
3. USPS: The United States Postal Service, which provides postal and shipping services to customers within the United States.
4. C.H. Robinson: A logistics company that offers freight transportation, logistics, and supply chain management services.
5. XPO Logistics: A global logistics and transportation company that provides freight forwarding, warehousing, and distribution services.