CSI was founded in March 1948 by the specification writers of government agencies who came together to improve the quality of construction specifications. The Institute's efforts were essential in improving construction specification quality so that it could meet the demands of the post-war construction boom. Development of specifications best practices, promulgating standards/formats, professional education, and certification were cornerstones of the Institute.
The Institute grew quickly to include specification writers in the private sector, design professionals concerned about communicating their vision in construction documents, constructors interested in delivering high-quality facilities, and material suppliers with unique solutions to construction challenges. These construction professionals continue to work together today as CSI members to effectively communicate the designers' vision, the material producers' solutions, and the constructors' techniques to create outstanding facilities that meet facility owners' objectives.