Contact Information

---

Daniel R. Wittwer
President

---

Ronald L. Wittwer
Executive Vice President

---

Ron Zerr
Vice President, Construction

---

DeWayne Warner, Operations Manager - Texas
B.S. Construction Management, Oklahoma State University
DWarner@wittwerconstruction.com

---

Kevin Petray, P.E., Construction Engineer
B.S. Civil Engineering, Oklahoma State University
KPetray@wittwerconstruction.com

---

Shad Hane, Estimator
B.S. Construction Management, Oklahoma State University
Shad@wittwerconstruction.com

---

David Burns, Project Manager
B.S. Construction Management, Oklahoma State University
DBurns@wittwerconstruction.com

---

Kirk Wiesner, CPA & Chief Financial Officer
B.S. Accounting, Kansas State University
KWiesner@wittwerconstruction.com

---

Doug Martin, Ph.D., Safety & EEO Officer
Ph.D. Oklahoma State University
DMartin@wittwerconstruction.com

---

Shane Zerr, Equipment Coordinator
B.S. Finance, Oklahoma State University
SZerr@wittwerconstruction.com

---

Trevor Schultz, Construction Coordinator
B.S. Finance, Oklahoma State University
TSchultz@wittwerconstruction.com