Quad Knopf specializes in a variety of land development, planning, architectural and engineering services. The company has been serving clients throughout California and Nevada since 1972. It also offers civil engineering, surveying and biological sciences services. In addition, Quad Knopf provides information on issues related to water and air, ecology, landscapes, roads, businesses and infrastructures. The company provides design, documentation and execution services, as well as employs a staff of operating officers, information technology directors and financial assistants. It serves school campuses, fire stations and parks. Its projects include Shannon Ranch, Victorville Prison and Arsenic Treatment Plant. Quad Knopf undertakes several projects for the commercial and residential sectors.