Northbrook Atrium Plaza
2351 W. Northwest Hwy Suite 2308
Dallas, TX 75220

9220 McComb St. Suite 10
El Paso, TX 79924

9894 Bissonnet Street Suite 388
Houston, TX 77036
Phone: 800-590-2180

Our Services

Brosnan Security provides security services and guards in Texas. Brosnan is full-service investigative, protective and intelligence firm to a global network of clients. Headquartered in New York City, with branch locations in multiple states, Brosnan is one of the largest privately held providers of technology-driven security services. With more than 500 years of law enforcement experience, Brosnan understands the law, and more importantly, law breakers. We protect your people, property and assets for aggressive risk mitigation strategies and technologies. Brosnan is a technology-driven best-in-class security provider.

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