General Info

Zelen provides engineering and consulting services in the southwest including Arizona, California, New Mexico, Texas and Colorado. Zelen is a small firm that is equipped to handle larger projects normally handled by larger, national consulting and engineering firms. Our clients vary from small, family businesses to school districts and oil companies. Zelens ability to manage a diverse array of projects from small to large, is found in its employees and associates who pride themselves in their work and provide personalized service.