Illinois

Hire a Private Investigator in Illinois

Following are private investigators and investigation agencies in the state of Illinois. Before you hire a private investigator in Illinois, contact the appropriate state licensing authority to confirm current license information. To verify a license for the state, please get in touch with the Illinois Department of Financial & Professional Regulation at 320 West Washington Street, 3rd Floor, Springfield, IL 62786.

To learn more about hiring a professional PI firm near you and get more details on the costs involved, read our article Tips for hiring an investigator.

Please let us know if you have any questions before hiring a private investigator in Illinois.

About Illinois

Illinois, in the American Midwest, is the fifth-most populous state. Chicago, its largest city, is a global financial hub. It’s a major agricultural producer known for diverse landscapes, including fertile farmland. Landmarks like Millennium Park and Route 66 draw tourists. Springfield is the capital, and cultural richness abounds.

All County Investigations, Inc.

Contact All County Investigations at P.O. Box 1424, Elgin, IL 60121 P.I. License Number is # 117-001697 Owner: ERIC MOSKAL

3 years ago

Lawrence Ryan Investigations, Inc.

Owner: Lawrence Ryan Private Investigator License Number: 117.001716 Description of Services: For over 35 years, LRI has been building its…

4 years ago

Wicklander-Zulawski and Associates

Owner - Michael Reddington, Manager of Investigations and Consulting FAX - (630) 852-7081 Wicklander-Zulawski and Associates, Inc. is a nationally…

4 years ago