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

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

Associated Builders and Contractors
ABC Texas Coastal Bend Chapter is the leading association providing the most valuable resources for the Coastal Bend construction industry.
Corpus Christi Chamber of Commerce
The United Corpus Christi Chamber of Commerce is an 1100 member organization representing business in the Coastal Bend region of South Texas.
Associated General Contractors
Associated General Contractors South Texas Chapter is a full service commercial construction trade organization. We offer a wide range of services for members of the commercial construction industry.
American Council of Engineering Companies
With roots dating back more than 100 years, ACEC is a federation of 52 state representing more than 600,000 engineers, architects, land surveyors and other specialists.
National Federation of Independent Business
The National Federation of Independent Business is America's leading small business association.

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

American Society of Civil Engineers
The American Society of Civil Engineers represents more than 150,000 members of the civil engineering profession in 177 countries. Founded in 1852, ASCE is the nation’s oldest engineering society.
Texas Society of Professional Engineers
(TSPE) is a state society of the National Society of Professional Engineers. TSPE was founded in 1936 to serve the interests of the individual engineer in Texas across all disciplines of engineering.
Society for Marketing Professionals Services
The Society for Marketing Professional Services (SMPS) is a community of marketing and business development professionals working to secure profitable business relationships for their A/E/C companies.

Corpus Christi - (361) 883-4555

San Antonio - (210) 495-8000

Round Rock - (512) 284-8022
"We are WBE, MBE, SBE, ABE, DBE and HUB certified."
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