New York

1441 Broadway, Suite 6048
New York, NY 10018

213 W 35th St, Suite 803
New York, NY 10001

Our Services

Brosnan Security provides security services and guards in New York, NY. 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