Tri-County Investigations

621 Plainfield Rd Ste 204
Willowbrook IL 60527

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Opening Hours

  • Mon: 9am-5pm
  • Tue: 9am-5pm
  • Wed: 9am-5pm
  • Thu: 9am-5pm
  • Fri: 9am-5pm
  • Sat: 9am-5pm


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  • PayPal

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Tri County Investigations is a fully bonded, insured and state licensed investigative agency located in Hinsdale, Illinois. For almost 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.