About us
Donna Dietz
Eric Dietz

Dietz Engineers, LLC, was established in 2010, and grew out of the former Kassaw and Dietz, Inc., which was established in 1976, by Jerry D. Kassaw in Tyler, Texas.  Donna M. Dietz joined his firm in 1981.  In 1998, Jerry D. Kassaw, Inc. became Kassaw and Dietz, Inc., with Ms. Dietz becoming President of Kassaw and Dietz, Inc. in 2003.

We are conveniently located in South Tyler in the Colonial Building at the corner of Old Bullard Road and Chimney Rock. Our address is 5935 Old Bullard Road, Suite 150, Tyler, Texas 75703.

We have two highly qualified engineers on staff serving the community.