St. Louis, MO | President, Board Member & Team Leader
USMC | Served 1977-1981 | Rank: E-5 | MOS: 5811/8511 | Boot Camp: Parris Island
Dennis served in the USMC as Military Police, Yuma, AZ and Drill Instructor, 1RTBN, MCRD, PISC. After the Corps, Dennis worked with the U. S. Postal Inspection Service as a Postal Inspector, GS-14 Supervisory Special Agent (retired). From 2010 to 2012, Dennis was an MPRI contractor, Law Enforcement Professional (1) embedded with JSOC, VBC Iraq and with the USA 4th IBCT, 1ID, FOB Sharana, Afghanistan. Currently, Dennis is the owner of Simpson Security & Investigative Advisory Group LLC. The business conducts Corporate/Business Physical Security Risk Assessments, Workplace Violence Prevention, Investigation and Training as well as Private Investigations. Dennis has been married for over 30 years. He has two sons and Gus the wonder dog. Dennis enjoys snow skiing, 13.1 races, dog obedience training and competition, Cardinal’s baseball, Marine Corps League and, of course, FOCUS Marines.