Uniting Voices

SITE was formed 55+ years ago to offer a united voice among the contracting community when negotiating Collective Bargaining Agreements with basic construction trades.

Tradition continues even today as hundreds of contractors sign SITE’s Collective Bargaining Agreements.


Collective Bargaining

SITE negotiates 10 CBAs with three different unions including the Missouri Kansas Laborers District Council, Operating Engineer’s Local 513 and Cement Masons Local 527.

SITE’s Agreements are negotiated by select committees within the organization that represent small, medium and large contractors – all coming together with Labor to negotiate fair and competitive contracts.

current collective bargaining agreements and wage notifications

Working Relationships between Labor and Management strengthen the St. Louis Construction Industry

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