Lawrence Ryan Investigations, Inc.
  • Contact Name:

    Larry Ryan

  • Primary Phone:


  • Established:


  • Mailing Address:

    9624 South Cicero Avenue
    Oak Lawn, IL 60453

About Lawrence Ryan Investigations, Inc.

Chicago's full-service—and most street-smart—process server.
LRI partners with many of Chicago's top law firms serving critical court documents. We gained our reputation as being the most clever and persistent process server in Chicago by serving the toughest evasion cases, our specialty. We've even been known to dress like utility repairmen to get our target to show themselves. The value we add doesn't stop at getting the documents in the person's hands, though. We work closely with the attorney or paralegal to tailor the affidavit to each case giving our clients better results in court.
As a private investigator in Chicago, Illinois, we bring over 38 years of law enforcement and investigations experience to bear on one goal: discovering the truth for our clients, whether that be catching your cheating spouse, winning a custody battle or divorce, or busting a stealing employee.

We are widely recognized as not only the most effective private investigations services in the Chicago area, but also the most discrete and confidential. Your privacy and protection is our number one concern. Why do we go to such great lengths to be the most confidential private investigators in Chicago? In addition to insuring your anonymity and safety, it is also critical to a successful investigation. Find out why in our FAQ. 

Our goal while you are here is to provide you with the information you need to make the best decision possible. When you are ready, give us a call for a confidential assessment. After we understand your needs and are confident we can help you, we’ll explain exactly how we can help and the costs involved. We are here and ready to help twenty-four hours a day.

Lawrence Ryan, owner, began a law enforcement career in 1976. Mr. Ryan received his Bachelor degree in Criminal Justice from Lewis University of Lockport, Illinois in 1977 & his Masters degree in Corrections from Chicago State University in 1980. Lawrence Ryan Investigations was established in 1995 under Mr. Ryan's state of Illinois Private Detective License. This company will be a strong advocate of your legal services. The services provided will be conducted in a professional & confidential manner.



Illinois Police Association
Faternal Order of Police, Lodge #7


  • Service of Process
  • Skip Tracing
  • Domestic Disputes Investigations
  • Surveillance
  • Background Investigations
  • Pre-employment Screening
  • Workman's Compensation Investigations
  • Statement Taking
  • Witness location
  • Law Enforcement Liason


  • State of Illinois
  • Concentration of Services rendered in the City of Chicago, County of Cook & the collar counties. is a partner site of