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.