Pacheco Koch, Consulting Engineers     8350 N Central Expressway, Suite 100 Dallas TX  

Bob Matush Surveying, Inc. Tyler, Texas    

Turley Surveying, Whitehouse, Texas

K.L. Kilgore & Company Tyler, Texas

E.L. Surveying & Mapping, Inc. Tyler, Texas

Thompson and Associates Tyler, Texas

John Cowan and Associates Tyler, Texas

Summit Surveying Ltd. Tyler, Texas

Barry Scarborough, RPLS

Sempco Surveying, Inc.    3208 South Main Street    Fort Worth, TX 76110

Isaac Grier

East Texas Chapter 23 Texas Society of Professional Surveyors