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Private Investigation Services

With private investigators located in New York City, New Jersey, Connecticut, Long Island, and California, our clients are assured we have the manpower capable to conduct their cases.  North American Investigations has been relying on proven methods and field-tested techniques for more than 45 years. Our team of professional private detectives have the years of experience required to provide the results you deserve.

Private Investigator Services, Private Investigation Services, Private Detective Services

Experienced Private Investigators

NAI has provided thousands of clients with private investigation services, which means that when you hire us, you’re going to benefit from a team with the experience, knowledge, and skills best suited for your unique situation. Our expertly trained staff is comprised of former federal agents, police detectives, and seasoned private detective veterans. Whether your case is local, national or international we have the resources to handle it. Our team can handle any size case, anywhere – local, national, or international.

Truly Private Investigations

Many cases our detective agency has worked on have been featured in the media including on the front page of the New York Times and the New York Post. However, the overwhelming majority of our work remains private, because integrity and trust are cornerstones to our client relationships. North American Investigations is discreet when dealing with client case information and offering numerous private investigation services.  You can rest comfortably knowing that our commitment to maintaining your privacy is our top priority.

Private Investigation Services We Offer

Surveillance Investigation Services >>

Regardless of the reason, you need trained professionals to provide you with personal or electronic surveillance services. NAI’s private detectives are highly skilled at all types of surveillance, even vehicle tracking. – Read More

Child Custody Investigations >>

Child custody and child support investigations are among the most important services NAI provides. Because we understand how important these issues are, you can be sure you will receive our best efforts for your case. – Read More

Criminal Investigations Services >>

NAI’s team of former police detectives and federal law enforcement agents are highly seasoned in criminal investigations. No matter how complex your case may be, our agency brings that background to bear in their investigation work. – Read More

Fraud Investigations >>

Fraud can be one of the most challenging issues to prove. The type of investigation services required when dealing with fraud cases demands experience only seasoned investigators can offer. – Read More

Insurance Investigations >>

Insurance investigations include fraud, yet there are many other types of insurance cases that require complex investigative work. And thanks to our four decades of experience, NAI’s insurance investigations team has what it takes for such work. – Read More

Infidelity Investigations >>

Infidelity investigations, sometimes referred to as “matrimonial” or “spousal” investigations, require a specific sequence of tasks, uniquely implemented for each individual investigation. – Read More

Missing Persons & Skip Tracing

If someone you love or care about is missing, quite often NAI can provide the dedicated investigation services law enforcement agencies don’t have due to staffing or budgetary constraints. – Read More

Background Investigations

NAI offers a complete range of personal as well as business background investigation services to clients. Our experience researching and uncovering pertinent and relevant information related to a prospective spouse, business partner, employee or vendor consistently helps you make important decisions. – Read More

Additional Investigation Services

In addition to the variety of primary investigation services NAI provides, our experience as a private detective agency spans a much wider range of services as well. If the services you need aren’t listed above, contact our team and ask how we may be able to help you. – Read More



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.