Engineering the future.
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Accredited Services for Exceptional Construction

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    Geotechnical & environmental engineering experts since 1995

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    2-3 week turnaround time for fast-track project scheduling

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    Collaborative, on-site construction materials testing

Our Certifications

We Ensure the Highest Quality

Terradyne is AASHTO accredited in our Round Rock and Carrollton, Texas, and Aurora, Colorado, laboratories.

Through a rigorous review of testing, equipment, and quality system management, our laboratories ensure the highest standards of quality are continuously upheld.

Through AMRL and CCRL’s rigorous review of testing, equipment, and quality system management, the AASHTO accreditation program recognizes a testing laboratory's competency by assessing the equipment and the staff’s abilities.

“AASHTO accreditation is important in many ways. Accredited laboratories can demonstrate that their testing services not only conform to specific national and international standards but are also of the highest quality. Accreditation can also enhance a customer’s confidence in the testing provided by the laboratory. Accredited laboratories have been subjected to vigorous on-site, third-party assessments. Additionally, a detailed review of all accreditation requirements, including participation in the AMRL and CCRL proficiency sample programs, is conducted for each accredited laboratory at least once per year.” - AMRL

Terradyne is a certified Minority/Disadvantaged/Small Business Enterprise and Historically Underutilized Business (MBE/DBE/SBE/HUB) by the following entities:


  • Texas Department of Transportation (via NCTRCA) – DBE
  • Dallas Fort Worth Minority Development Council – MBE


  • City and County of Denver – MBE, DBE, SBE
  • Colorado Department of Transportation – DBE
  • Denver Area RTD – SBE

Learn About our Team of Engineering Experts Who Focus on Creative Solutions for Complex Engineering Projects