Our Leadership

Marty Hepp is President of CEC. He has been with CEC since 1989. Mr. Hepp has a Bachelor of Science in Civil Engineering from the University of Oklahoma. He and his wife, Donna, have two daughters, Alisha and Kristi, and four grandchildren. In his free time, Mr. Hepp enjoys cycling and restoring old Porsches. He also spends his free time volunteering in discipleship programs for CEC leaders, as well as giving to the philanthropic causes that are supported by CEC Civil Servants.

Craig Ireland is Treasurer and Chief Financial Officer for CEC.  He has been with CEC since 2015.  Mr. Ireland has a Bachelor of Science in Accounting, Finance, and Commercial Bank Management from Oklahoma State University and a Master of Business Administration from Southern Methodist University.  He and his wife, Meredith, have two sons, Tucker and Cooper.  In his free time, Mr. Ireland enjoys traveling, volunteering, and spending time with friends and family.  

Doug Glenn is Chief Operations Officer and has been with CEC since 2004. Mr. Glenn graduated from Oklahoma State University with a  Bachelor of Science in Civil Engineering. He and his wife Christina have two daughters, Lilli, and Coley Rae. In his free time Mr. Glenn enjoys watching Oklahoma State athletics, coaching YMCA basketball, and gardening with his wife. 

Maria Wilson is the Chief People Officer for CEC. She has been with CEC since 1998. Mrs. Wilson has a Bachelor of Business Administration from Oklahoma Baptist University. She and her husband Greg have two children, daughter Marilee, and son Micah. Mrs. Wilson enjoys traveling and spending time with family.

Steven Johnson is Chief Business Development Officer for CEC. He has been with CEC since 2001. Mr. Johnson is originally from Oklahoma City and has a Bachelor of Science in Civil Engineering from Oklahoma State University. He and his wife Erin, have two daughters, Claire and Lauren. In his free time, Mr. Johnson enjoys watching Oklahoma State athletics, Oklahoma City Thunder basketball, and playing volleyball.  

Geoff Covalt is the Market Leader of Oklahoma Transportation for CEC. He has been with the company since 2015. He has spent most of his career in transportation related construction as an inspector for the Oklahoma Department of Transportation, Regional Manager of a multi-state paving contractor, owner of a paving company, and Vice President responsible for construction management in a multi- state region for a large international firm.  Geoff earned a Bachelor of Science of Civil Engineering from Texas Tech University. He and his wife Shana have one daughter, Reagan, and two sons, Cooper and Cade.  Geoff enjoys bird hunting, watching his boys play sports, his daughter play the piano and perform in productions, and watching high school sports.

Josh Dougherty is an Oklahoma Market Leader for CEC and has been with the company since 2015. He graduated from Oklahoma State University with a Bachelor of Science in Civil Engineering. He is licensed in the State of Oklahoma, and is also a LEED accredited professional and is a board member for the Oklahoma Chapter of SMPS.  Born and raised here in Oklahoma City, he is a husband, a father of two daughters, enjoys spending time with his family outdoors and working on his classic early Bronco.

Randall Knowles is the Market Leader for the Oklahoma Power Market. He has been with CEC since 2011. Mr. Knowles previously worked as a designer and coordinator in the Distribution and Transmission departments at CEC. He is originally from Mascoutah, Illinois and has a Bachelor of Science degree in Mass Communications from Olivet Nazarene University. Mr. Knowles and his wife, Sara, enjoy listening to live music, attending sporting events, and taking vacation trips to the beach.

Cassie Reese Tipton joined CEC in August of 2019 and serves as the Oklahoma Market Leader for Tulsa and Eastern Oklahoma. Cassie graduated from the University of Arkansas with a Bachelor of Science in Public Relations and holds a certificate of Corporate Social Responsibility from Boston College. Cassie is an active community leader serving on the Tulsa Chamber Board of Advisors, The Tulsa Ballet Board of Directors and the City of Tulsa Economic Development Commission among others. Cassie and her husband Evan, live in Tulsa with their daughter Waite. Away from the office, Cassie enjoys volunteering in a variety of capacities across the region, spending time with family and friends and all the travel time will allow.