A consortium of researchers dedicated to improving the understanding of the human causes and consequences of terrorism

TEVUS Portal


The Terrorism and Extremist Violence in the United States (TEVUS) Database and Portal is based on four related open-source databases. The portal compiles behavioral, geographic, and temporal characteristics of extremist violence in the United States dating back to 1970. Through the portal, users are able to build search queries based on four data types including specific events, perpetrators of an act of terrorism or an extremist crime, groups, and/or court cases related to terrorism and extremist crime in the United States. The TEVUS Portal allows users access to data related to terrorist incidents, pre-incident activities, and extremist crimes in the United States and identifies relationships between these events and perpetrators, groups, and court cases in a dynamic, unique interface.


  • The American Terrorism Study (ATS) is led by researchers at the Terrorism Research Center at the University of Arkansas. The ATS is an empirical relational database consisting of data on federal terrorism-related court cases, persons indicted in these court cases, and related officially designated terrorism incidents. Included in the TEVUS portal are data from court case, person, organization, affiliation, incident, and precursor activity (antecedent) tables in the ATS. Variables included cover demographic information, terrorist group to which the individual belongs, and temporal and geospatial data on incidents and antecedent activities. 
  • The Global Terrorism Database (GTD) is led by START researchers at the University of Maryland. The GTD is an open-source database that includes information on terrorist attacks around the world from 1970 through 2018. It is comprised of systematic data on domestic as well as international terrorist attacks that occurred during this time period and includes more than 190,000 cases. Only attacks that occurred in the United States are included in the TEVUS portal.  
  • The U.S. Extremist Crime Database (ECDB) is led by researchers at John Jay College of Criminal Justice, Michigan State University, Seattle University and Indiana University – Purdue University, Indianapolis. The ECDB is a relational database that includes information on all publicly known violent and financial crimes committed in the United States by extremists associated with al-Qa’ida and its associated movement (AQAM) - which for the purpose of this dataset also include crimes committed by extremists associated with the Islamic State of Iraq and the Levant (ISIL), the violent Far Right (FR), and the Animal and Earth Liberation Fronts (ELF and ALF). The ECDB includes information on the incidents themselves, as well as their perpetrators, related organizations, and victims. It currently covers the period between 1990 and 2018.
  • Profiles of Perpetrators of Terrorism in the United States (PPT-US) is led by START researchers at the University of Maryland. PPT-US is a group-level dataset, including information on the background, ideology, structure, goals, and activities of groups and organizations identified as perpetrators of attacks in the Global Terrorism Database (GTD). Only GTD perpetrator groups for which there is high confidence of responsibility for at least one violent attack are included in PPT-US. There are over 140 groups included in the dataset that carried out terrorist attacks in the US between 1970 and 2018. 


As part of the development of the TEVUS database and portal, several analytical projects have been produced and can be found on the TEVUS Project page here.