Our Team

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Our clients move forward, get approved, and stay on plan because our team is committed to their success.  We deliver great access, the attention they deserve, and the technical support they need. 

Our team of professional engineers, surveyors, designers, project managers, scientists, and administrators help our clients succeed.  We currently have openings at our offices near Kankakee and Joliet and are looking for talent to live and work in Chicago.

Joel Greer, P.E.
Brian Hertz, P.E
Mark Schierholz, ILPSBob Sluis, ILPS
Mike Gingerich, Ph.D., P.E.
Rich Vane, P.E.
Jim Earleywine, P.E.
Jeff Pallisard, P.E.
Melissa Zigrossi, P.M.
Nate Brimmer, CADD/GIS
Ben Sluis, FIELD
Todd Gereaux, P.M.
Randy Raab, P.M.
Pat Lovell, P.M.
Jared Gingerich, B.S.E.
Chris Graefnitz, CADD/GIS
Matt Hill, FIELD
Pat Olson, FIELD
Matt Ruitteger, B.S.E.
Adam Schaeffer, B.S.E.
Montana Case, B.S.E.
Mike Olson, FIELD
Rob Riley, CADD/GIS
Kim Gingerich
Sue Price
Donna Rosengarten
Mike Mathews, BIO
Tim Gereaux, FLD
Student – Communication + Marketing
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Student – Design + Field Work
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Student GIS + Programming
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Call 815-939-4921