CONTACT TRI COUNTY INVESTIGATIONS
TCI is located in the Willowbrook Office Plaza. It is on the south side of Plainfield Road, just West of Madison Street. Our office is on the second floor of building 621.
Tri County Investigations Group, Inc Est. 1976 In Hinsdale, IL Is A Fully Bonded, Insured And State-Licensed Detective Agency Located In Willowbrook, Illinois.
License Numbers
Illinois Detective Agency, #117.001700
(Olymbia) Bia Tyk, Private Detective, #115.002369
Karen Hybl, Private Detective, #115.002659
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