Huitt-Zollars makes its dollars as a design firm. The company provides a wide spectrum of services including civil, traffic, mechanical, electrical, structural, and environmental engineering; construction and program management; surveying; landscape architecture; and architectural planning. Clients include government agencies, institutions, private corporations, and industrial firms. Huitt-Zollars has worked on a variety of projects such as schools, airports, highways, and urban development. The firm operates throughout the US, with 15 offices in Arizona, California, Colorado, New Mexico, Texas, and Washington. E. Larry Huitt and Robert Zollars founded the company in 1975.