CTLGroup originated a century ago as the cement and concrete technology Research and Development Laboratories of Portland Cement Association (PCA) in 1916.

In the 1960s, present-day CTLGroup began providing consulting services for applied research projects, continuing to expand its engineering consulting services through the 1980s.  In 1987, CTLGroup was incorporated as Construction Technology Laboratories, Inc., a wholly-owned subsidiary of PCA, and in 2005 began doing business as CTLGroup.


CTLGroup is an internationally recognized expert consulting engineering and materials science firm, providing engineering, architecture, and scientific testing to our clients across the globe.

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