Private Investigator Nassau County

Serving all of Nassau County and Suffolk County


Investigative Services at a glance...

Private Investigator Long Island

Click on our services page for details

  • Surveillance
  • Private Security
  • Computer Forensics
  • Matrimonial
  • Infidelity
  • Child Custody 
  • Lawsuits
  • Criminal Defense
  • Assets Located

Call today for a free consultation:

Suffolk County Private Investigator516-795-3368

100% confidential


Nassau County Private Investigator


Long Island Investigations is based in Nassau County and serves both Nassau and Suffolk


We are conveniently located in Massapequa Park with a satellite office in Farmingdale.

We are a licensed and bonded Private Investigator Long Island

Serving Suffolk County and Nassau County as well as the five boroughs of New York City












Experience Is Our Strength!