Our Great Neck Private Investigators are fully licensed, bonded and insured Private Investigators in Great Neck, New York providing services such as Child Custody, Background Investigations, Infidelity/Domestic Investigations, and more to the insurance industry, legal professions, small & large businesses and individuals. We are a team of experienced investigative experts dedicated to serving our clients with professionalism, skill, and integrity at all times. With years of investigative experience, our private investigators will get you the results you need. We take great pride in giving the most personable and hands-on service available in Great Neck. Our Private Investigators are available to work cases throughout Eastern & Western Long Island 24 Hours a day, 7 Days a week. We place lots of emphasis on surveillance and infidelity investigations.  Our offices are located in NYC and on Long Island with private investigators and detectives ready to act at a moment’s notice.  The cases we conduct are local, national, and international in nature, all being geared toward our clients’ needs.


(800) 724-8080

Contact North American Investigations Today

If you are in need of private detective agency services, we invite you to contact NAI today for a free, no obligation consultation. We will take the time to listen and understand your unique situation and develop a plan that ensures you get the best results.


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