ST JOHN is a full-service AE design firm that leads complex facility, infrastructure, and historic preservation projects nationwide.  ST JOHN’s leaders have directed AE design for clients such as the National Park Service, the US Air Force, and government and non-profit institutions in twenty US states and three US territories. ST JOHN provides design and structural engineering services with its in-house team and leads nationally recognized teams of AE consultants on projects of regional and national significance.