The Association of Union Constructors evolved from the National Erectors Association, which was founded in 1969 by the leading union steel erectors in the construction industry. Over the years, membership grew to include all types of union contractors, and, consequently, the name and structure of the association was changed to The Association of Union Constructors in 2007. The new association reflects the changing face of the construction industry and more accurately reflects the growing diversity of TAUC members. Our national headquarters is located in Arlington, Virginia, just across the Potomac River from downtown Washington, D.C.