Jonathan D. Raab, PE
Vice President


Vice President Jon Raab, P.E., established GTA’s presence in Ohio in 2011. Jon oversees our new, larger, Northeastern Ohio office which has moved from Malvern to Alliance (located centrally between Youngstown, Akron, and Canton) to better serve our clients throughout Ohio, western Pennsylvania, and northern West Virginia.

Our Northeastern Ohio office serves residential, commercial, industrial, energy, and institutional clients, contractors, architects, and civil engineering firms by providing timely and optimal solutions to site challenges. Services at this location include geotechnical engineering, lab testing, construction observation and testing services, natural resource planning, and environmental consulting. In addition to soils testing, our expanded laboratory capabilities include concrete and asphalt testing. Furthermore, this office is supported by the technical expertise and resources of our other 16 offices and more than 400 employees.

“We are excited to take root at this new, larger office location and believe that this move will allow us to better serve existing and future clients and their communities. We look forward to expanding our value-based solutions to problematic conditions and construction challenges in the region,” said GTA President, Dave Zmijewski, P.E.

Please note our new address and phone number:
1420 W. Main Street
Alliance, Ohio 44601
(330) 680-9022

For business opportunities, please contact:
Jon Raab, P.E.
Cell: (717) 873-9559