2675 Pratum Ave. Hoffman Estates, IL 60192 - click to email

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About Us

Scott R. Triphahn, PE PLS
Stephen T. Triphahn
Jeff S. Gutowsky, PE, SE
Keith M. Mandoske, LSIT
Christopher M. Starke

Kelly Moran

Frank I. Maticic, PLS

Mike O'Donnell

James M. Lueders

Ryan DiFatta

Gayle Vandenbergh

Mark M. Corrado

Licenses & Affiliations

Partial Client List

Career Opportunities

Customer Center

Request for Proposal

Engineering Specialties

W-T Civil Engineering, LLC

W-T Communication Design Group, LLC

W-T Mechanical/Electrical Engineering, LLC

W-T Land Surveying, Inc.

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