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Security & Private Investigation

Ahern Protection Group is a trusted provider of security consulting, physical protection, and private investigation services for clients in New York City, Long Island, and beyond.

How We Help

We offer a comprehensive suite of security and investigation services, all delivered with the professionalism and integrity.

A male security professional in a black suit and sunglasses stands formally next to a black car outside a glass building.

Personal Protection Services

Ensure the safety of executives, public figures, and at-risk individuals with our discreet personal protection services. Our agents provide a seamless shield, allowing you to live and work with confidence.

A person in a dark blue sweater holds a tablet displaying a grid of live security camera feeds, with large surveillance monitors visible behind them.

Consulting & Risk Management

We conduct threat assessments, develop emergency plans, and provide strategic guidance to help you proactively mitigate risk. Our consulting services are available nationwide.

Seen from behind, a security guard in a black jacket and cap touches his earpiece as he communicates outside a white-sided building.

Physical Security Services

Protect your property with our high-caliber physical security services. We provide professional manned guarding, mobile patrols, and event security staffed by highly-trained, licensed officers.

A male private investigator wearing a dark suit and sunglasses uses a large telephoto lens camera while discreetly seated inside a car, observing a blurred subject outside.

Private Investigations

As a licensed New York State private investigator, we conduct thorough, confidential investigations to provide the clear, factual information you need to make critical decisions.

A professional headshot of John Ahern, who is smiling and wearing a dark pinstripe suit and blue patterned tie against a neutral outdoor background.

Experience the Advantage of a 30-Year NYPD Veteran

Ahern Protection Group is led by John Ahern, a retired NYPD Lieutenant with over 30 years of distinguished service. His career included leadership roles in the detective bureau, internal affairs, and patrol services, giving him a practical understanding of every facet of security and investigation. After retiring from the force, John founded Ahern Protection Group to bring a higher standard of professionalism and integrity to the private sector.

Two businessmen, one younger, one older with a beard, walk down a sunlit office hallway, discussing information on a clipboard.