Carpenter Marty Transportation is an interdisciplinary engineering firm that offers an unsurpassed range of expertise to streamline transportation projects and improve design value for clients and project partners. We are based solely in Ohio and have a proven track record of providing clients with the highest quality plans, studies, and superior customer service.

Our expertise lies in:

Carpenter Marty Transportation is considered to be one of Ohio's most trusted consultants for infrastructure design and management. We maintain a reputation for excellence, which is evident in our ability to gain repeat work from satisfied clients. We proudly boast a three year ODOT Consultant Evaluation Score of 85%, which is well above the state average of 74%. Our success in getting high marks lies in our ability to meet and exceed project schedules while providing complete and accurate plans.


2017 Circle of Excellence
Columbus CEO Engineering Firms 2017
2017 Top Engineering Firm
2016 Circle of Excellence
2016 WTS Employer of the Year
2016 Top Engineering Firm
2015 PSMJ Circle of Excellence
2015 Top Firm Logo
2014 PSMJ Circle of Excellence
2014 Top Firm