Gabrielle Thompson

Vice President
Threat Assessment

Gabrielle is a leading behavioral scientist with a specialty in threat assessment.  She has assessed and managed thousands of cases of inappropriate pursuit, threats, and harassment, including situations involving mentally ill stalkers, disgruntled current and former employees, stalkers who pursue their victims at the workplace, interpersonal stalking, and domestic violence. 

She has advised 18 Fortune-50 companies, as well as government and law enforcement agencies, educational institutions, and victims of inappropriate pursuit.  She provides consultation on critical cases, and she develops and manages threat assessment programs for high-profile executives and public figures.

Gabrielle has trained thousands on advanced concepts related to threat assessment, including case management, strategies for managing difficult terminations, and managing victim fear, among other topics.  She is Senior Instructor at The Advanced Threat Assessment Academy.

She served on the development teams for several MOSAIC systems, including:

  • MOSAIC for Assessment of Public Figure Pursuit (MAPP)
  • MOSAIC for Assessment of Threats to Judges (MAJ)
  • MOSAIC for Assessment of Domestic Violence (DV-MOSAIC)
  • MOSAIC for Assessment of Threats in the Workplace (MAT‑W)
  • MOSAIC for Assessment of Threats by Students (MAST)





Gabrielle is a licensed private investigator specializing in investigations related to threat assessment.  She graduated from Georgetown University cum laude, with a Bachelor of Arts degree in Psychology and a minor in English.  She has been certified by the American Society of Industrial Security as a Protection Professional (CPP).

In 2021, Gabrielle was selected as a “Pioneer in Protective Intelligence” by Ontic’s Center for Protective Intelligence. 

National Security Experience:
Information provided in this brief bio does not include the associate’s background in National Security or military work designated as Secret or Top Secret, and does not include experience that is otherwise non-public.