Jeffrey P. Jaros

Jeff is President | CEO of NTH Consultants, Ltd. (NTH), an infrastructure and environmental engineering firm headquartered in Michigan. He joined NTH in April 2005 and was named a Senior Associate/Vice President in April 2008. He was promoted to Chief Operating Officer in 2017 and appointed to CEO in May 2023. Jeff received his B.S. in Meteorology from Penn State in 1991 and his M.B.A. in 2000 from Michigan State University.

Jeff started his career developing weather forecasts for a host of industries ranging from railways to professional sports teams. Having grown up during the bustling days of blast furnaces and steel mills in Pittsburgh, his desire was to use his degree to perform atmospheric modeling. After a short stint as a forecaster, he moved to Michigan to work with the regulatory agency performing emissions modeling for clean air act permits, and regional atmospheric modeling and meteorological modeling to support state-level programs aimed at reducing ozone.

During this time, Jeff earned his Executive M.B.A. and entered the engineering and environmental consulting industry providing permitting and compliance support to various industries and clients. Through the years, he assumed increasing leadership roles, culminating in his current role. He has been in the engineering consulting industry for over 20 years.

Today, Jeff lives in Michigan with his wife Renee and pup Sullivan. They are empty nesters and proud parents of two adult children. He is an active member of GBA’s Business Practices and Peer Review Committees.