Who we are
Armstrong Security, PLLC is an Illinois-licensed private security contractor agency providing armed protective services across Chicagoland.
We believe protection should be earned through training and judgment, not announced through branding. Our Agents are selected carefully, trained to a documented standard, and held accountable on every post.
Armstrong is part of the United Defense Initiative, a group of companies dedicated to the defense of American citizens through security, training, and protective services.
Carmine Mattozzi
Principal, Armstrong Security
Carmine Mattozzi brings 20 years of security experience focused on counterterrorism and high threat operations. He currently serves with the Army National Guard’s 20th Special Forces Group in an infantry support role. A competitive shooter and Brazilian Jiu-Jitsu purple belt, he is certified to instruct firearms through the NRA, USCCA, and CSAT, and teaches U.S. Army, law enforcement SWAT, and less lethal courses.
At Armstrong, he sets a standard of disciplined preparation, sound judgment under pressure, and respect for the people entrusted to our protection.
How we operate
- Train before we placeNo Agent takes a post without completing our curriculum and a site briefing.
- Deter, then de-escalatePresence and communication solve most problems. Force is the last option, never the first.
- Answer for our workClear post orders, clear reporting, and a direct line to leadership when you need it.
Start with a site assessment.
We walk your property, review your risks, and recommend the right coverage.