The document describes commercial external payload hosting platforms on the International Space Station (ISS) for space research. It discusses Airbus Defense and Space and Teledyne Brown Engineering's platforms called NanoRacks External Platform and Bartolomeo. NanoRacks will host small payloads of up to 100kg starting in early 2016. Bartolomeo is designed to host multiple medium to large payloads up to 500kg and will provide power, data, cooling and pointing capabilities. The document provides details on payload accommodations, operations concepts and end-to-end commercial service for customers.