An Insured & Licensed Armed Security Services Company in Texas
At SENTRYSIX International, we provide the highest tier of uniformed armed security services designed to protect what matters most. What sets us apart is our commitment to excellence—our personnel aren’t just security guards; they are Armed Security Specialists, a title earned through higher standards, rigorous training, and real-world experience. Our armed Security Specialists are comprised of current and prior law enforcement officers and military veterans, bringing unmatched professionalism, tactical readiness, and situational awareness to every assignment. When our company first started, we were a security guard company in San Antonio, Texas and through rapid growth, quickly expanded as an armed security services company in Austin, Dallas, Midland/Odessa, and Houston.
Whether you need visible deterrence and rapid response for high-end residential communities, commercial office buildings, roving patrols, aviation/airport security, border security operations, school security, critical infrastructure security or special events, SENTRYSIX delivers a tailored, mission-focused approach. Backed by a leadership team with extensive national security and law enforcement backgrounds, our uniformed armed security services offer peace of mind, presence, and protection that you can trust. Choose SENTRYSIX International—where protection meets precision.
Regionally Served Armed Security Services Company in:
Austin, Texas | Brownsville, Texas | Corpus Christi, Texas | Dallas / Ft. Worth, Texas | Houston, Texas | Odessa/Midland, Texas | San Antonio, Texas | San Marcos / New Braunfels, Texas | Albuquerque, New Mexico | Bozeman, Montana
HOA Security Services
SENTRYSIX International proudly provides professional, reliable, and highly trained security officers for Homeowners Associations (HOAs) across Texas. Our veteran-led team specializes in delivering tailored security solutions that enhance neighborhood safety, deter crime, and provide peace of mind for residents and property managers. Whether your HOA requires video surveillance, vehicle patrols, access control, or 24/7 on-site security, SENTRYSIX offers a customizable approach backed by experienced personnel from military and law enforcement backgrounds. With a strong focus on professionalism, community engagement, and ethical conduct, SENTRYSIX is the trusted partner for HOAs seeking top-tier security services in Texas.
Commercial Office Building Security
SENTRYSIX International offers professional armed security officer services for commercial office buildings, providing a powerful presence that deters crime and ensures a safe, secure environment for tenants, employees, and visitors. Our highly trained Security Specialists—all of whom are prior law enforcement or military—bring a level of expertise and professionalism unmatched in the private security industry. With a focus on access control, emergency response, and routine patrols, our armed officers are equipped to handle the unique challenges of commercial properties. From Class A office towers to corporate campuses, SENTRYSIX delivers customized security solutions that protect assets, maintain order, and enhance the overall safety of your business environment.
Aviation & Airport Security Services
SENTRYSIX International delivers trusted armed security officer services for aviation and airport security, ensuring the highest level of safety and compliance across all critical access points. Our experienced Security Specialists, exclusively comprised of former law enforcement and military personnel, are trained in passenger screening, terminal surveillance, access control, and rapid threat response to meet the demanding security protocols of the aviation industry. Whether supporting commercial airports, private airfields, or cargo hubs, SENTRYSIX enhances operational security with a professional, visible deterrent that reinforces TSA and FAA regulations. From passenger screening to perimeter protection, we provide tailored aviation security solutions that protect travelers, staff, and critical infrastructure.
Critical Infrastructure Security
SENTRYSIX International provides specialized armed security officer services for critical infrastructure, with a strong focus on protecting assets within the oil and gas sector. Our elite Security Specialists—all former military or law enforcement professionals—are trained to secure high-risk environments, including refineries, pipelines, storage facilities, and remote field operations. With heightened situational awareness, tactical readiness, and advanced threat assessment capabilities, our armed officers ensure 24/7 protection against theft, sabotage, terrorism, and unauthorized access. SENTRYSIX understands the complex security demands of critical infrastructure and delivers proactive, mission-driven solutions that keep vital energy operations safe, compliant, and uninterrupted.
Special Event Security
SENTRYSIX International offers top-tier armed security officer services for special events, providing expert protection and crowd management for concerts, corporate functions, festivals, VIP gatherings, and high-profile venues. Our Security Specialists—all prior military or law enforcement professionals—are trained to handle dynamic environments with precision, discretion, and authority. From access control and perimeter security to threat mitigation and emergency response, we ensure your event runs smoothly and safely. With a strong emphasis on pre-event planning and real-time situational awareness, SENTRYSIX delivers customized, high-visibility security solutions that deter threats and provide peace of mind for organizers and attendees alike.
School Resource Security Officers
SENTRYSIX International provides highly trained armed security officer services for private and public schools, offering a proactive and professional approach to campus safety. Our Security Specialists, all of whom are current and former military or law enforcement personnel, with most also being reserve peace officers, are specifically trained in Active Shooter Response, and receive ongoing school-based safety training through the Texas School Safety Center at Texas State University. This specialized preparation ensures our officers are equipped to respond swiftly and effectively in high-risk scenarios while maintaining a strong, reassuring presence on school grounds. Whether protecting private or public schools, elementary schools, high schools, or entire districts, SENTRYSIX delivers reliable, mission-driven school security solutions that prioritize student and staff safety while supporting a secure learning environment.