The private prison industry in the United States has grown significantly during the last several decades and along with it there has been an apparent increase in the outsourcing of services at facilities used for immigration detention purposes. However, while much has been written about private ownership and management of detention facilities, the phenomenon of non-state-actor involvement in immigration detention extends beyond these activities. For instance, while private contractors are responsible for overall management of some two dozen immigration-related detention facilities in the United States, this report demonstrates that private contractors provide a range additional services at nearly 100 prisons, shelters, and detention centers across the United States that have been used to hold migrants and asylum seekers.