Wetherill Engineering, Inc. is a diversified group of professionals providing more than twelve decades of combined experience in transportation planning, roadway and bridge design, site design and layout, structural engineering, and geographic information systems. Our hands-on approach puts us above our competitors. Wetherill Engineering, Inc. is headquartered in Raleigh, NC and is fully registered to provide Professional Engineering Services with the Office of the Secretary of State. WEI is ranked as the 101st Top Firm in the Southeast by Engineering News Record and a Top MWBE firm in the Triangle region by the Triangle Business News.