The U.S. Postal Service (USPS) provides shipping services for packages traveling to residential and business addresses in the U.S. and around the world. Popular USPS service levels include: USPS Priority Mail, USPS First Class Package Service, USPS Priority Mail International, and more. Shippo is an official USPS® ePostage partner.

Founded in 1907, UPS is the world's largest package delivery company and a leading global provider of specialized transportation and logistics services. UPS provides a powerful competitive advantage that can help you earn repeat customers and grow your business.

DHL is the world's leading logistics company. DHL has 360,000 employees in over 220 countries and territories working every day to help you cross borders, reach new markets, and grow your business. E-commerce businesses can ship via DHL Express Worldwide, a cost-effective option for international packages.

FedEx Logistics is a provider of comprehensive supply chain solutions, specialty transportation, cross border e-commerce technology services, customs brokerage, and trade management tools and data. Popular service levels include: FedEx Home Delivery, FedEx Express Saver, FedEx 2Day, and more.