Organized in 1938, CTA has grown to provide a variety of building services. Each year, CTA completes more than 1,200 projects, translating into $400 million in construction costs. Projects include educational facilities, medical clinics, hospitals, residences, planning, and recreational, commercial, retail, and industrial developments. In addition to architectural services, CTA provides mechanical, electrical, structural, and civil engineering, landscape architecture, interior design, and a range of specialized services in such areas as cost estimating, commissioning, code review, and roofing for our clients.