GTI has been certified by AMRL, CCRL, the City of Phoenix, AASHTO and ADOT. Field Technicians with GTI are certified with the Arizona Technical Testings Institute (ATTI), American Concrete Institute (ACI), City of Phoenix and ADOT to conduct soils, concrete and asphalt testing. We also have certified personnel on the Slab-on-Ground Committee of the Post-Tensioning Institute (PTI). GTI is also a nationally recognized Women Owned Business and an ADOT Disadvantaged Small Business.
GTI is committed to the principles of client service, responsiveness and sound practical professional advice. Throughout our history, we pride ourselves on providing high quality engineering services and on developing the most cost effective and innovative solutions that address the needs of our clients.