Gregory P. Luth & Associates (GPLA) is a certified Disabled Veteran-owned Business Enterprise (DVBE) and Small Business Enterprise (SBE) based in Santa Clara, California. It has an affiliated company in Denver, Colorado and is part of "The Renaissance Design Group" (TRDG), allowing collaboration among many licensed engineers (both S.E.s and P.E.s), Ph.D.s, and detailing managers.


The firm has amassed a large and eclectic body of work over the past 30 years, including projects of virtually every type, size and material ranging from major bridges to small residential projects. We are licensed in all 50 states, Puerto Rico, and Guam.


The firm's work is characterized by a dedication to the practice of engineering as a combination of art, craftsmanship, science, and service. The technical staff hones its problem solving skills by personally drawing the details that are the key to the economy, reliability, and sensitivity of any project, focusing their attention on the essence of the engineering and construction. There are no drafters at GPLA, only renaissance engineers. We work with repeat clients for whom our passion for creative engineering and collaborative problem solving has been the key to successful projects. The "Projects" and "Services" section of this website highlight the variety of projects to which our renaissance engineers have contributed or designed.