SITE Improvement Association
SITE Improvement Association is a leading construction trade association based in Eastern Missouri. We represent construction contractors and industry partners in site development, including concrete, earthmoving, asphalt paving, landscaping, highway and bridge, sewer and utility, and specialty construction sectors.
Since 1966, SITE has supported Missouri contractors by negotiating union labor agreements, advocating for fair construction legislation, and building strong partnerships with public agencies and project owners.
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Strength in Numbers
SITE’s members are the foundation of our strength and purpose, enabling us to provide union contractor support through labor relations representation, along with guidance, legislative advocacy, and intentional networking that fosters lasting industry relationships. Established to represent contractors in collective bargaining, SITE has grown to serve the entire construction industry, equipping professionals and partners with the connections and resources needed to succeed.
