Gorrondona Engineering Services, Inc. (GES) is a Houston-based privately held Texas corporation with offices in Houston, San Antonio and Fort Worth, specializing in geotechnical engineering and construction materials testing and inspection (CMT). GES owns and operates truck-, track- and buggy-mounted drilling rigs and maintains a full-service soil and CMT laboratory accredited by the American Association for Laboratory Accreditation (A2LA) and AASHTO. GES is Administratively Qualified by TxDOT.



GES is concerned with the safety, health and welfare of our employees and maintains an active health and safety program which includes training, mentoring, monitoring and reinforcement.  


LaRhea Nichols 

Ken Riner, P.E. 

Is an integral part of our business!

Chuck Salsky, P.E. 



Jeanne Bassetti Jullien 

More about GES and our industry.