Clifton Structural, based in Ankeny, Iowa, provides structural engineering services for residential and commercial projects. The firm, led by Robert Clifton, PE, delivers structural engineering construction documents and calculations tailored to client needs. Clifton Structural works with architects

Stillwater Structures, based in Orono, Maine, provides structural engineering services for time-critical and complex projects across residential, commercial, industrial, and infrastructure sectors. The firm specializes in limited-scope engineering tasks that larger firms often find unattractive, inc