Free Consultation
800-724-8080 

North American Investigations is Long Island’s leading private investigation firm.

We were recently nominated as the Best of Long Island, and we’ve been mentioned in the New York Times, New York Post and Wall Street Journal.

We understand what our clients are looking for and know how to deliver the best results possible. We’re here to bring you peace of mind.

Based out of Mineola, NY, we offer a variety of investigative services, but our Long Island branch focuses mainly on surveillance and infidelity investigations.

Investigations Across Long Island

Our investigators serve all  Nassau County & Suffolk County,  including Great Neck, East Hampton and South Hampton. Our team is trained to handle suburban, urban, and rural investigations.

All cases are performed by our most professional and experienced staff members, including retired police officers, former narcotic investigators, detectives, and licensed private investigators.

We use a variety of private detectives (both male and female of multiple ethnicities), allowing us to adapt to any environment or situation.

North American Investigations Long Island Storefront

We’ve been in business for over 45 years and have solved thousands of cases.

We are the experts here to help you obtain the evidence you need.

We are licensed and bonded. We understand New York State’s laws and regulations, and take great pride in always conducting legal and ethical investigations.

Our investigators always deliver the facts objectively. We pride ourselves on our moral and ethical standards.

Evidence is critical in our field, and all clients receive a report of our findings that is suitable for use in court, along with video or photo documentation. Video and photo evidence is time and date stamped.

We can also provide court testimony and have expert witnesses available.

Contact Us Today

Our company has an A+ rating with the Better Business Bureau.

We are a fully staffed agency handling a wide range of investigations.

Call us for a free, private consultation.







North American Investigations
199 Willis Ave
Mineola, NY 11501

Toll-Free: 800-724-8080
Phone: 516-203-4411

Free Consultation!

Call 800-724-8080 or fill out the form

800-724-8080 
199 Willis Ave
Mineola, NJ 11501