At Shephard-Wesnitzer, Inc. (SWI) we take pride in providing comprehensive civil engineering and surveying services throughout northern Arizona. SWI’s success can be attributed to our ability to pair qualified technical expertise with local communities, restrictive budgets and varying terrain, and environmental challenges. SWI offers a full range of civil engineering, surveying, and Geographic Information Systems (GIS) services, along with in-house printing capabilities. With four offices and 25 employees, SWI is northern Arizona’s premiere civil engineering firm. The level of service, staff resources, and the engineering expertise we provide to local Arizona communities is what sets us apart. SWI has been a proven leader through the state of Arizona since 1990.