The Counter-Trafficking Data Collaborative (CTDC)—an initiative with participation from the International Organization for Migration (IOM), Polaris, the Counter-Trafficking Data Collaborative, and Liberty Shared—is a hub for data on human trafficking. It publishes data from various organizations, case data, and individuals who reached out via hotlines. The founding partners, IOM and Polaris, launched the project in 2017 to encourage counter-trafficking policies and strategies.