About Us

For over 20 years Rock Engineering and Testing Laboratory INC. has provided services to the Coastal Bend region and remains the only locally owned and headquartered engineering laboratory.

In 2005 RETL established a presence in San Antonio, Texas and has seen continued growth in project volume and staff size.

Our next location in Round Rock, Texas was established in 2015 following the pattern of growth by the preceding locations.

We take great pride in proving our services throughout the state in highly responsive manner. RETL provides comprehensive investigations for geotechnical engineering concerning earth materials and their relationship pertaining to engineered structures.