Let’s start the conversation. Please contact us either by office or by area of expertise.


Columbus, Ohio
6397 Emerald Parkway, Suite 200, Dublin, Ohio 43016
Dave Mustafaga, PG, CPG

Cincinnati, Ohio
4770 Duke Drive, Suite 207, Mason, Ohio 45040
Cara Henegar, PE, CP

Cleveland, Ohio
4 Hemisphere Way, Bedford, Ohio 44146
Eric Wilburn, PE, CP

Newark, Ohio
59 Grant Street, Newark, Ohio 43055
Jim Roberts, PE

Pittsburgh, Pennsylvania
P.O. Box 260, New Brighton, Pennsylvania 15066
Dave Mustafaga, PG, CPG

St. Clairsville, Ohio
156 Woodrow Avenue, Suite 3, St. Clairsville, Ohio 43950
AJ Smith, PE

Toledo, Ohio
219 South Erie Street, Toledo, Ohio 43604
Eric Wilburn, PE, CP

Austin, Texas
126 Margaret Circle, Austin, Texas 78737
W. Lance Turley


See more detail on our areas of expertise.

Steve Gross, CPG, CP

Jordan Rofkar, PhD

Landfill Services and Beneficial Use
Bill Petruzzi, PG

Renewable Energy
Mark Bonifas, PE, LEED AP 

Oilfield Services
AJ Smith, PE

Rapid Response
 Tim Lois

Roadway and Bridge Engineering
Jim Roberts, PE

General Structures
Jim Roberts, PE

Construction Services
Dave Baltzer, CSI, PE

Geotechnical and Dams
AJ Smith, PE

Water and Wastewater
Alan Brown, PE

Strategic Services
Jenny Carter-Cornell, APR

Scott Haines, PE, CPESC

Site Engineering
Amanda Spencer

Jeremy Van Ostran, PS

Drone Services
J Matthew Beil, CPG