Corpus Christi - (361) 883-4555     San Antonio - (210) 495-8000     Round Rock - (512) 284-8022


Company Overview

Rock Engineering and Testing Laboratory, Inc. (RETL), was established on March 16, 1998 by Mr. & Mrs. Mark and Roetta Rock in Corpus Christi, Texas. The Rocks founded their business on the basic principles of doing things right and taking care of their clients. Since then, RETL has expanded their presence throughout Texas, opening offices in San Antonio and Round Rock. The company currently employees more than 70 people.

RETL is the only locally owned and headquartered Engineering Laboratory, and the largest Engineering Laboratory in the Coastal Bend. With the addition of locations in San Antonio and Round Rock, RETL has solidified its position as one of the most highly-regarded engineering and testing firms in the State of Texas. The company’s response to client demands and the technical expertise of its engineers and staff is exceptional. In terms of project volume, years of experience, and overall reputation within the Design and Construction community, Rock Engineering and Testing Laboratory surpasses all competition.

Rock Engineering provides geotechnical engineering, geotechnical and environmental drilling and construction materials engineering and testing services. The company is accredited by the American Association of State Highway Transportation Officials as an Engineering Laboratory for testing soils, concrete and hot asphaltic concrete.

Professional Organizations

Rock Engineering continually cultivates professional relationships within our community. We are proud to be associated with the following professional organizations:

Associated Builders and Contractors
Corpus Christi Chamber of Commerce
Associated General Contractors
American Council of Engineering Companies
National Federation of Independent Business

In addition to RETL’s Memberships, our employees are members of the following professional organizations:

American Society of Civil Engineers
Texas Society of Professional Engineers
Society for Marketing Professionals Services

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