Professional Service Industries, Inc. is located at 1901 S Meyers Rd
, Oakbrook Terrace, IL 60181. It has around 1K - 5K employees. Its revenue is around $100 - 500M. Professional Service Industries, Inc. (PSI) is an industry-leading engineering, consulting and testing firm with 100 offices nationwide and a successful history of serving clients dating back to 1881.
With approximately 2500 staff, PSI is one of the nation's largest firms providing engineering, scientific, technical and management solutions to public and private sector clients involved with site selection, design, construction and property management. Also, PSI provides a variety of specialt...
Competitor - 1/6
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