Who We Are

Our Story
Dyess-Peterson Testing Laboratory, Inc. has been a cornerstone of the Amarillo building community for over five decades. Established in 1968, our firm has evolved from a local testing shop into a multi-discipline engineering and technology powerhouse. In 1995, we moved into our current 20,000 square foot state-of-the-art facility to better serve the growing needs of our region.
Expertise You Can Trust
We believe that a project is only as strong as the data behind it. Our team consists of thirty-five key personnel, including registered professional engineers and over a dozen specialized technicians.
To ensure we can support your project wherever it leads, we maintain mobile laboratories that serve clients throughout Texas. Our professional reach is extensive, with engineering and drilling licenses held across three states:
-
Texas
-
Oklahoma
-
New Mexico
Our Qualifications
Quality and safety are not just goals for us; they are verified standards. Our laboratory meets the rigorous requirements of ASTM E329 and ASTM D3740, ensuring that every test we perform is backed by industry-leading protocols.
Our Team
At Dyess-Peterson, our commitment to precision and quality is backed by a team of highly certified professionals. Our staff holds specialized credentials from the Texas Department of Transportation (TxDOT) and the American Concrete Institute (ACI), ensuring that every project benefits from industry-leading technical expertise. From sophisticated asphalt mix designs and aggregate analysis to rigorous on-site concrete testing, our diverse qualifications allow us to deliver reliable, compliant, and high-performance results for even the most complex infrastructure needs.
-
TxDOT HMAC Level 1A Plant Mix Specialist
-
TxDOT HMAC Level 1B Roadway Specialist
-
TxDOT HMAC Agg 101 Aggregate Specialist
-
TxDOT HMAC Level 2 Mix Design Specialist
-
ACI Concrete Field Testing Technician – Grade 1
-
ACI Concrete Strength Testing Technician









