NAI Your Professional Private Investigation Agency
North American Investigations – NAI private detective agency have been conducting investigations and solving cases for over 45 years. We are the largest, oldest and most experienced private investigator agency in NYC, New York, New Jersey, Connecticut, and Los Angeles, California.
Our private investigators have the credentials, expertise and experience having successfully solved thousands of cases for our clients. NAI has set the standard in the industry with our proven methods and results. Our private detective staff to gather the evidence needed to solve your case. With thousands of satisfied clients, we are the private eyes to count on for help.
- Free Consultation
- Local, National & International investigations
- Male and female investigators
- Staff are former police detectives, federal agents, investigators
- Confidential and discreet
- Licensed, bonded and Insured
- Over 45 years of experience makes us the industry leader
- In House Attorney
- Technologically advanced surveillance methods & equipment
- Featured on front page on NY Times & NY Post, TV, radio
Our domestic division specializes in infidelity, cheating spouse, unfaithful partners, matrimonial, adultery and child custody cases. Our surveillance division performs thousands of hours of surveillance. The criminal division conducts criminal and fraud investigations to help victims. Our missing persons/locate division has found countless people. NAI is the private investigation agency you can trust.
Speak to an Investigator: 800.724.8080