The Post-Tensioning Institute (PTI) is recognized as the worldwide authority on post-tensioning. It is dedicated to expanding post-tensioning applications through marketing, education, research, teamwork, and code development while advancing the quality, safety, efficiency, profitability, and use of post-tensioning systems.
Founded in 1916, the Portland Cement Association represents cement companies in the United States and Canada. It conducts market development, engineering, research, education, and public affairs programs. PCA's mission is to "Improve and expand the uses of portland cement and concrete."