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We Go Above & Beyond Security Measures to Provide Your Safety Needs

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Vigilant Security Company Giving You Added Peace of Mind

Agent Watching

Whether your facility is an urban office building, residential location, or hotel, we are fully prepared to provide the level of security you want.

Concierge Security
 Guards and Patrol

Decrease the chances of criminal activity occurring at your home or business with our property patrols and unarmed or armed security officers.

Patrol & Officers
Private Investigation

National Security & Investigation Services, LLC, is available whenever you require personal protection or professional investigation.

Private Services
Security Guard

For those interested in becoming a licensed security guard in the state of Texas, we have conveniently outlined all of the requisites for you.

Guard Requirements

Schedule a free, unlimited consultation for our security services.

(346) 262-0179


About Us

National Security & Investigation Services, LLC, is a dedicated security company in Houston offering protection for gated communities, apartment complexes, high-rises, shopping centers, corporations, and private citizens. Previously known as Houston Security Special Ops, we utilize extensive industry knowledge to meet your individual needs. All guards are screened and trained beyond state requirements. Every staff member is also drug tested, FBI background checked, and guaranteed age-appropriate and physically fit for their post.

Our owner, First Sergeant M. Carl, entered the security sector in 2011 as an officer and after much success, started this business in 2014. Collectively, our team has more than four decades of security and law enforcement experience to better serve our clients. In fact, we have a personal relationship with many law enforcement officers who aid us in our services.