Tri County Investigations 
Tri County Investigations

Service ~ Integrity ~ Reliability
Tri County Investigations, est. 1976 in Hinsdale, IL is a fully bonded, insured and state-licensed detective agency located in Willowbrook, Illinois. For over 40 years, Tri County Investigations has proudly provided legal support services to both attorneys, and individuals throughout the state of Illinois.  We pride ourselves on the notion that each and every document deserves the upmost attention to detail.

At Tri County Investigations, we use our highly advanced capabilities to fulfill our clients' needs insuring that every service is performed to their satisfaction.  The procedures we have implemented in our office secure the preservation of vital documents and information allowing us to service clients completely and accurately at any time.

Support services lend specialized aid in the legal process.  Our office staff and process servers are held to the highest standards.  Every member of the TCI team is committed to providing supreme service in the most time efficient and cost effective manner.

In addition to our special process services, we also offer a vast array of investigative services including, but not limited to
  • Skip Tracing
  • Private Investigation
  • Background Checks
  • Credit Checks
  • Mobile Notary
  • Financial Inquiries
  • etc.

Please contact Tri County Investigations for a complete and current list of services and prices.









 621 Plainfield Road
Suite 204
Willowbrook, IL 60527
Phone (630) 655-1313
Fax (630) 655-4155
Email info@TriCoEmail.com.com
License #117.001700

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