Professional Security Services

Owned & Operated By
U.S. Military Veterans

Here at SENTRYSIX International, we provide professional security services to lead you into the next generation of security.

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Video Monitoring

We can quickly identify threats, sound alarms, activate lights, and dispatch law enforcement or local security teams through our video monitoring service. This service is great for monitoring of construction sites, car dealerships and critical infrastructure.

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K-9 Explosives & Narcotics Detection

Our detection K-9’s are used by law enforcement and security agencies nationwide and have been trained in one of the country’s leading canine training centers.

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Executive Protection

SENTRYSIX International specializes in providing personal security for business executives, celebrities, and public figures around the world.

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The COVID-19 Pandemic has crippled the United States and has been a critical issue for governments around the globe, pushing efforts to combat the spread of the virus. At SENTRYSIX we offer support services to businesses for screening visitors, guests and employees through our on-site health screening support services. Contact us today to learn more.

Leading The Next Generation of Security®

SENTRYSIX is a comprehensive mission support solutions provider that offers a full spectrum of security solutions, police services, event staffing and mission support services. We maintain offices strategically located across the country to best serve our clients, and ensure we secure your success. Contact us today to experience the SENTRYSIX difference.

Professional Guard & Patrol Services

Our professional security officers are trained to deter damage caused by break-ins, vandalism, workplace violence, arson, and other crimes.

Executive Protection

At SENTRYSIX International, our private protection officers are specially trained to provide close personal protection to help ensure safe and discrete travels both domestically and abroad.

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Remote Video Guarding

Our remote video guarding solution is a video monitoring service designed to effectively monitor your site or provide over-watch gate access control to a property. Our remote video monitoring solution is an affordable alternative to security guard services and is extremely effective.

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Client Reviews

“I found Sentry Six and hired them for my personal event. The security guards and support staff are professional and well educated. Moreover, communication level is up to mark which made us easy to secure our event at a professional level.”

-Kyle Rayner

SENTRYSIX DEFENSE GROUP is the pacesetter for the new generation of public safety. With Law Enforcement Officers and US Armed Forces Veterans at the spearhead of this organization, their services and employees will continue to run unparalleled in the Private Security Industry.

-Ramiro Guzman

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News & Updates

Check Out Our Security Tips & Latest Company News!

SENTRYSIX Enters Partnership with Community Associations Institute

SENTRYSIX Defense Group has officially partnered with Community Associations Institute (CAI). ABOUT CAI “CAI is an international membership organization dedicated to building better communities. With more than 35,000 members, CAI has 63 chapters worldwide, including Canada, the Middle East and South Africa, and relationships with housing leaders in a number… Read More

SENTRYSIX Builds Relationships With Dubai Officials

SENTRYSIX International is a growing global security partner specializing in security risk management solutions worldwide. Recently our firm has began the process of building a partnership in Dubai to take our expertise to the international market and UAE region. The middle east is a vulnerable area with high rates of… Read More


Find out what the San Antonio Express News is saying about us! Click here: What could be better than a baseball field filled with baseball players, alumni of the Major League Baseball Players Association and U.S. military veterans? This past Saturday, June 16th, SENTRYSIX made that happen. As the… Read More

SENTRYSIX Presents The Eva’s Heroes Baseball Clinic

SentrySix is proud to present the Eva’s Heroes Baseball Clinic on June 16th at St. Mary’s University. The event is held annually and provides an opportunity for individuals with special needs to learn and play baseball. Former Major League Baseball players will attend and coach participants before the Grand Slam baseball game… Read More

SENTRYSIX Attends World’s Largest Security Technology Expo

SENTRYSIX Defense Group, Inc. attended the largest security industry trade show, ISC West! Located in Las Vegas, Nev., SENTRYSIX had the opportunity to network with over 30,000 security professionals from all over the world to learn about the latest in security technology and increase their capabilities on remaining the leader… Read More

25+ Years of Experience
$25m+ Total Revenue Generated
50 States Of Operation
18 Countries Of Operation