The MCAH is a non-profit trade association representing all unionized Mechanical Contractors who work within UA Local 67 Jurisdiction. Its membership is over 40 companies and includes Associate members. MCAH is an accredited bargaining agency with the Ontario Labour Relations Board and is governed by a volunteer Board of Directors who are elected annually by the membership.

Hamilton-Halton Construction Association

HHCA is a non-profit organization serving over 300 members who are actively engaged, either directly or indirectly, in the Industrial, Commercial, and/or Institutional (ICI) construction industry.

Hamilton-Halton Construction Association Safety Group

The HHCA Safety Group is sponsored by the Hamilton-Halton Construction Association and is currently made up of over 75 member firms from the constructions sector. Their collective purpose: to learn from each others' experience in implementing injury and illness prevention programs.

Workplace Safety and Insurance Board

WSIB oversees Ontario's workplace safety education and training system, provides disability benefits, monitors the quality of health care, and assists in early and safe return to work