SKUdrop is a China-based 3PL that manages the flow of inventory between your supplier and Amazon FBA. They provide cost effective storage in China, direct to Amazon shipping options, and software designed to save you time and money.
AMZ Prep is a 3PL with locations across the US, extending to London, the Middle East and Australia. They are the largest FBA prep service provider globally. In short, they help sellers to ship orders everywhere their customer’s shop.