Our Team

The Holdfast Security Group is composed of recently retired FBI Agents from the Bureau's Tactical Training and Protective Operations Programs. We employ the same highly effective techniques and methodologies we used to safeguard some of the world's most at-risk individuals. One of the most rewarding aspects of our careers was working with truly outstanding colleagues. We started this company because we wanted to continue doing what we love - helping others and collaborating with amazing people.

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Rob Chadwick

Rob is currently the Head of Personal & Public Safety for the United States Concealed Carry Association/Delta Defense, and is a Principal Training Advisor in TASER Self Defense for Axon. He is the author of The Practical Guide to Personal Security, a personal security guidebook that was released in July 2025.

Rob retired from the FBI as the head of the Tactical Training Unit at Quantico where he served as the Principal Tactical Instructor and was responsible for ensuring the operational readiness and proficiency of FBI Agents around the world.  In this capacity, he also led the FBI’s national Active Shooter response training program. He has provided advanced tactical and Active Shooter response training for law enforcement agencies around the world. During his time at the FBI, Rob served on the Protective Details of seven United States Attorneys General and four FBI Directors.  As an FBI SWAT team member, he served as a sniper team leader and tactical medic. 

Prior to joining the FBI, SSA Chadwick was assigned to the Special Operations Division of the Fairfax County (VA) Police Department.

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Mike Kelly

Mike retired from the FBI after 25 years of service as a Special Agent. He was a member of the FBI’s Los Angeles Division SWAT Team before being selected for the FBI’s Hostage Rescue Team where he served as an Assaulter and a Sniper. With numerous operational deployments that include Iraq, Bogota, and Nairobi, Mike also has extensive experience providing executive protection for the US Attorney General and the FBI Director in locales that range from Washington D.C. and Paris to Iraq, Pakistan, Israel, and Saudi Arabia. Mike finished his career with the FBI as the SWAT Senior Team Leader and Principal Firearms Instructor for the Columbia Division where he provided advanced tactical and firearms training to law enforcement officers in the United States and around the world.

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Tressa Wang

Supervisory Special Agent Tressa Wang recently retired from the FBI after 22 years of service, where she spent her career combating both human security threats and technology protection issues. Tressa served over 20 years as a Field Firearms Instructor and has extensive experience instructing New Agents at The FBI Academy at Quantico. She has a background in Muay Thai boxing and Brazilian Jiu-Jitsu and currently specializes in integrated self-defense and security training for women and teens.