As Executive Director of the Ontic Center of Excellence, Dr. Marisa Randazzo provides strategic consulting, program development and training services in behavioral threat assessment, threat management and violence prevention for safety and security professionals at major corporations, educational institutions and government agencies. Prior to Ontic, Dr. Randazzo was the Chief Executive Officer and founder of SIGMA Threat Management Associates LLC, acquired by Ontic in September 2021.

Before creating SIGMA, Dr. Randazzo served for ten years with the U.S. Secret Service, most recently as Chief Research Psychologist, and has co-authored several leading books on threat assessment. She frequently provides commentary to major news outlets on all aspects of violent behavior and prevention.