Endicia | 5,015 followers on LinkedIn. #1 USPS Shipping Solution | Endicia is the leading provider of internet-based postage services for e-commerce businesses of all sizes. Endicia’s postage and shipping solutions save time and provide access to the best possible USPS® and UPS® shipping rates. We know that shipping can be complex and our goal is to simplify your shipping operations so you can focus on doing what you do best.