Brosnan® is a full-service security, protective, investigative and consulting firm to a global network of clients.

Who We Are

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 with aggressive risk mitigation strategies and technologies. Brosnan® is a technology-driven, best-in-class security provider. Brosnan's Smart Security Solutions (BSSS) is a patent-pending, comprehensive security solution that combines state-of-the-art technologies, security best practices, robust intelligence gathering and communications, and trained personnel with decades of law enforcement and military intelligence experience to deliver vital information and guidance to security teams "on scene" who need it most... and need it fast. Brosnan’s Smart Security Solutions (BSSS) incorporates a cutting edge 24/7 Command and Control Center, aggressively-designed SmartTrucks® to deter crime and proprietary apps on all our security officers smart phones that directly link them, in real time, to the Command Center. Brosnan's senior management team, led by Patrick J. Brosnan, has over 500 years of law enforcement experience. From assessment to implementation, Brosnan® has the ability to seamlessly integrate protective services with a proactive and tiered approach that assesses threats, devises answers and ensure operational continuity.







Brosnan provides security, protective, investigative and consulting services to a broad spectrum of industries across the United States and Canada. In addition, Brosnan maintains strategic relationships with high-end peer firms in Africa, Eastern Europe, Jordan, Iraq, Japan, Saudi Arabia, United Kingdom and Russia. We can assure the safety of our principals whether in New York City or Moscow. Brosnan’s global reach guarantees seamless protection and ensures safety at home, in the workplace, and abroad.

Strategic Partners

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People, Equipment and Services for Your Organization’s Security Needs