The Ready Mixed Concrete Association of Ontario was formed in 1959 to act in the best interest of Ontario's ready mixed concrete producers and the industry in general. It is fully funded by the membership (Active and Associate) and provides a broad range of services designed to benefit its members and the industry in general.

With a total membership of about 180 companies, it is recognized as the authoritative voice of the ready mixed concrete industry in Ontario.

A Board of thirteen Directors, five of whom represent different geographical parts of the Province, governs the Association. Two elected chairmen of the Associate Members are members of the Board. Several standing committees address the many and varied concerns of specific interest to the industry.