The Big, Allied and Dangerous (BAAD) online platform features updated, vetted and sourced narratives, and relationship information and social network data on 50 of the most notorious terrorist organizations in the world since 1998, with additional network information on more than 100 organizations. Funded through the Department of Homeland Security’s Science and Technology Directorate’s Office of University Programs, the underlying BAAD database was created and is maintained by the Project on Violent Conflict at the University at Albany’s Rockefeller College of Public Affairs and Policy. In addition to the data available on this portal, an extract of the Big Allied and Dangerous (BAAD) Version 2.0 dataset used to create the results published in the article entitled "Crime, Conflict and the Legitimacy Tradeoff: Explaining Variation in Insurgents' Participation in Crime" is available at https://doi.org/10.7910/DVN/JT6GFR.