Call Us Today (516) 248-7111

Private Investigators Long Island New York

What We Do

Call (516) 248-7111 today for a Free consultation

Our Services as a Long Island, NY Private Investigation Firm

CIVIL Investigations

Corporate Investigations

If you need to unravel a complex corporate matter our team can mitigate your risk.


  • Partnership Disputes
  • Client & Trade Secrets Theft
  • Due Diligence Investigations
  • White Collar Crime
  • Patent & Trademark Infringement
  • Counterfeiting of Products
  • Internal & Former Employee Theft
  • Pre-Employment Screening
  • Undercover/Sting Investigations
  • Illegal Use of Commercial Premises
  • Computer/Digital Forensics
  • Forensics Accountants
  • Electronic Office Debugging/Sweeps
  • Executive Protection (Armed & Unarmed)
  • Security Consultants
  • Video or Film Surveillance
  • and other related investigations

Our tailored civil investigations can mitigate risk providing you with the information you require.


  • Landlord/Tenant Investigations
  • Personal Injury Investigations
  • Trial Preparation
  • Difficult and Unusual Services of Process
  • Worker's Compensation
  • Skip Trace Investigations
  • Polygraph Examiners
  • Medical Investigations
  • Nationwide Database
  • and other related issues

Domestic Investigations

Criminal Investigation

Conducting Criminal Defense Investigations which include some of the following:


  • (CJA) Investigations
  • Wrongful Convictions
  • False Arrests
  • Corporate Fraud Investigations
  • White Collar Crime
  • Insurance Fraud Investigations
  • Witness Locates
  • Computer Related Crimes
  • and most related crimes

Personal matters can be of a sensitive nature. We conduct confidential and discreet investigations for most domestic issues.


  • Matrimonial
  • Pre-Marital
  • Child Custody
  • Missing Persons
  • Background Checks
  • E-Mail Traces/Investigations
  • Surveillance Specialist
    (Video & Film Evidence)


New York Office

521 5th Avenue

New York, NY 10175

Tel: 212-949-6530

Long Island Office

864 Willis Avenue

Albertson, NY 11507

Tel: 516-248-7111


(516) 248-7111


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Local  •  National  •  International  •  Licensed & Bonded


Copyright © 1990-2021 JL & Associates, Ltd.

“We are a Manhattan based Law Firm with over 2,000 lawyers, worldwide, and have been using JL & Associates, Ltd for 16 years. They have always been diligent, honest and successful in all our investigations we have used them for. They are far the BEST Private Investigation Firm in the industry and will treat you with respect with any problem you can't share with anyone one else.”




Private Investigators Long Island New York

What We Do


Corporate Investigations



Call Us Toll Free
(516) 248-7111

Call Us Toll Free (516) 248-7111

Local  •  National  •  International

Licensed & Bonded

Copyright © 1990-2021 JL & Associates, Ltd.

Private Investigators Long Island New York

What We Do