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Shops at City Line, 4520 City Line Ave, Suite 4520 A Philadelphia Pennsylvania 19131

Pittsburgh - Spaces One Oxford
301 Grant Street, Suite 270
Pittsburgh, PA 15219

Our Services

Brosnan Security provides security services and guards in Philadelphia, PA. 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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The Leader in Security Services