David A. Grantham, Ph.D. is a nationally renowned security professional, having served in various positions on both the federal and local level.

Dr. Grantham currently serves as the CEO of Training Technologies and Support, Inc. (TTS) and previously served as the Chief of Intelligence and Technology at the Tarrant County Sheriff’s Office and before that as a Special Agent with the Air Force Office of Special Investigations (AFOSI), deploying both to Iraq and Afghanistan in support of counterintelligence operations.

Dr. Grantham holds a PhD from Texas Christian University in Modern History with specializations in policy and conflict during the Cold War. He earned his Master of Science in International Relations from Troy University and Bachelor of Arts in History from the University of South Florida in 2004.



Dr. Grantham is the author of the award-winning book Consequences: An Intelligence Officer’s War.