Private Investigation Services for Long Island, NY

We assist both individuals and businesses with their investigative needs. Our principals have extensive law enforcement experience.

While we specialize in background checks, including pre-employment and tenant screening, we also provide a variety of other investigative services. We consider all cases - large or small - to be important. Our clients can be assured that we treat each case with absolute discretion.

Whether your needs are business or personal, they will be addressed by an experienced investigator.

Investigative Services

  • Private Investigations
  • Background Checks
  • Risk Management
  • Due Diligence
  • Public Records Research
  • Professional License Verification


Personal Matter

LJ Research assisted me tremendously in finding a long lost relative. They took the little bit of information I had, found that some of it was incorrect, but succeeded nevertheless and were professional throughout the process. I'd recommend them to anyone.

Happy Client,