Madigan PI, LLC A Private Investigation Company We serve all of Illinois and we are now licensed in Wisconsin!!!
Madigan PI, LLC A Private Investigation Company We serve all of Illinois and we are now licensed in Wisconsin!!!

Fields of Speciality

Here you will find an overview of the fields of specialty our investigators have experience in.

Our Specializations

  • Civil Investigation
  • Personal Injury/Accident
  • Vehicle Crash/Accident Investigation
  • Wrongful Death/Suspicious Death
  • Cheating Spouse/Infidelity Investigation
  • Custody Issues
  • Undercover
  • Surveillance
  • Insurance Fraud/Workman's Compensation

Other Services offered

We will gladly assist you in the following areas:

  •  Pre-employment and background investigations
  •  Skip Trace
  •  Service of Process
  •  Notary

We service the entire Chicagoland area, Elgin, Rockford, Freeport, Sterling/Rock Falls, and the Quad Cities.  Even if you are outside of this area, call us, we will travel anywhere throughout Illinois.




Do you have questions about our services?  Have something not listed?

Contact us at (888) 312-4550 or via our contact form.

Contact Us

Madigan PI, LLC

P.O. Box 141

Lena, IL 61048


Phone: (815)238-4172




Illinois License      # 115.002354

Illinois License      # 117.001666

Wisconsin License # 17024-62


Or use our contact form.

Office Hours

Please call us to schedule an appointment that is convenient for you.  We will travel to meet you.  We can be reached 24 hours a day.  Just call toll free (815)238-4172 or email us at for a quote.