T-O Engineers, a full-service planning and engineering firm, is proud to celebrate 30 years in the aviation sector. Founded in 1984, T-O Engineers initially provided civil services primarily to land development and transportation clients. In 1988, T-O Engineers acquired Hosac Engineering and diversified their portfolio by adding aviation services to the company resume.
Three decades later, T-O Engineers serves 36 airports throughout Idaho, Washington and Oregon. Clients range from small general aviation airports to large commercial service airports.