Business Details
27 Years
experience
Trusted Geotechnical Engineering Services in Dallas
Established in 1999, Alliance Geotechnical Group (AGG) has grown into a respected leader in geotechnical engineering, leveraging the diverse expertise of its senior staff across varied geologic settings. Headquartered in Dallas, Texas, we employ over 150 professionals dedicated to delivering responsive service and technical excellence to a broad client base. Our engineers are recognized for tackling complex projects with challenging design requirements and difficult site conditions, often presenting research to the American Society of Civil Engineers.We prioritize fostering honest communication, accountability, and teamwork, ensuring unbiased data and reliable project delivery. With state-of-the-art laboratories and certified technicians, we maintain accreditations from AASHTO, ISO/IEC 17025:2017, and the U.S. Army Corps of Engineers, underscoring our commitment to quality assurance and industry leadership.
Services
Geotechnical Engineering
Construction Materials Testing
Construction Inspection
Laboratory Testing
Foundation Analysis
Details
- Year established: 1999
Highlights and features
- We have over 20 years of experience in geotechnical engineering and construction materials testing.
- Our state-of-the-art laboratories are AASHTO and ISO/IEC 17025:2017 accredited.
- We provide responsive service with a team of 150+ experienced professionals.
- Our engineers present research to the American Society of Civil Engineers (ASCE).
- We maintain rigorous quality assurance through U.S. Army Corps of Engineers certifications.
Associations and certifications
- AASHTO
- ISO/IEC 17025:2017
- U.S. Army Corps of Engineers
- Texas Department of Transportation (TxDOT)
What people say
Outstanding service
Accurate recommendations
Responsive team
Industry leadership
Rigorous QA/QC
Services
Geotechnical Engineering
Our geotechnical engineering services include subsurface investigations, foundation analysis, and construction monitoring. We utilize in-house drilling rigs and advanced laboratories to meet project deadlines. Our engineers provide hands-on quality assurance during foundation construction, ensuring compliance with industry standards.
Construction Materials Testing
We offer comprehensive testing for concrete, soil, asphalt, and aggregates to ensure compliance with construction standards. Our AASHTO-accredited labs provide accurate data for project success. Certified technicians perform field and laboratory testing to maintain quality throughout the construction process.
Construction Inspection
Our certified inspectors ensure quality control during construction projects. Services include fireproofing, reinforced steel inspection, and concrete coring. We act as an extension of client teams, providing documentation and coordination to meet project timelines and specifications.
Laboratory Testing
AGG's state-of-the-art labs conduct ASTM-standardized tests for soil, rock, and construction materials. We maintain ISO/IEC 17025:2017 accreditation for precision. Our services include triaxial testing, permeability analysis, and strength evaluations to support engineering decisions.
Foundation Analysis
We specialize in foundation design and specialty analysis for challenging site conditions. Our engineers provide value-engineered solutions for residential, commercial, and infrastructure projects. Services include settlement system monitoring and vibration analysis to ensure structural integrity.
People
Robert P. Nance
President
Robert leads AGG's strategic vision, leveraging decades of geotechnical engineering experience. He oversees corporate growth and client relationships while maintaining technical excellence in project delivery across Texas.
Frank Shirazi
Sr. Vice President
Frank manages AGG's operations, focusing on quality assurance and technical innovation. With extensive experience in construction materials testing, he ensures compliance with AASHTO and ISO standards across all laboratories.
Mark J. Farrow, P.E.
Sr. Vice President
Mark directs AGG's engineering projects, specializing in geotechnical subsurface investigations. He leads teams in delivering solutions for complex infrastructure challenges, emphasizing safety and technical precision.
Terry Oswald, P.E.
Vice President
Terry oversees AGG's transportation sector projects, applying expertise in roadway studies and foundation analysis. He ensures client satisfaction through responsive service and adherence to industry best practices.
Roger Cisneros, P.E.
Quality Assurance Manager
Roger directs AGG's QA/QC program, maintaining equipment calibration and procedural compliance. His leadership ensures all projects meet rigorous accreditation standards and client expectations for accuracy.
Questions
What geotechnical services does AGG offer?
AGG provides subsurface investigations, foundation analysis, construction monitoring, and laboratory testing for soil, rock, and construction materials.
Are AGG's laboratories accredited?
Yes, our Dallas, Fort Worth, and Houston labs are AASHTO-accredited and ISO/IEC 17025:2017 certified, meeting ASTM and TxDOT standards.
Which industries does AGG serve?
We work with municipal governments, school districts, transportation agencies, and water utilities across Texas on infrastructure projects.
How does AGG ensure quality control?
Our QA/QC program includes equipment calibration, staff certifications, and adherence to U.S. Army Corps of Engineers standards.
Can AGG handle large-scale construction projects?
Yes, with 150+ staff and six Texas locations, we provide inspection and engineering services for complex municipal and transportation projects.
