Customer service is our number one priority. Please feel free to call our offices at the numbers below or email us directly.
Warrenville offices, 630.393.CTL1
Jay Miller
jmiller@chicagotestinglab.com
Career Opportunities
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Paul Yerkes
pyerkes@chicagotestinglab.com
George Giroux
ggiroux@chicagotestinglab.com
Tiffany Engelhardt
tiffany@chicagotestinglab.com
Thornton offices, 708.877.1801
Steve Richter
srichter@chicagotestinglab.com
Joliet offices, 815.385.8351
Alan Okkonen
aokkonen@chicagotestinglab.com
Elk Grove Village offices, 847.228.1079
Christopher Chan, P.E.
cchan@chicagotestinglab.com
Indianapolis offices, 317.322.9500
Dan Rogers, P.E.
drogers@indianapolistestinglab.com
Abdul Khalaf
akhalaf@indianapolistestinglab.com
