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"Coming together is a beginning. Keeping together is progress. Working together is success." --Henry Ford


The Mechanical Contractors Association of America (MCAA) serves the unique needs of approximately 2,600 firms in North America involved in heating, air conditioning, refrigeration, plumbing, piping, and mechanical service.

MCAA provides its members with high-quality educational materials and programs to help them attain the highest level of managerial and technical expertise.

MCAA includes the Mechanical Service Contractors of America, the Plumbing Contractors of America, the Manufacturer/Supplier Council, the John R. Gentille Foundation and the National Certified Pipe Welding Bureau.



MSCA is the leading organization for HVACR contractors, providing education, marketing, and labor/management services to assure its contractor members deliver quality performance, value and expertise for all building system needs.

MSCA members perform service, maintenance, replacement, retrofit and repair work resulting in enhanced reliability, tenant satisfaction and efficiency.

MSCA has more than 1,400 member companies and is a subsidiary of the Mechanical Contractors Association of America.



The United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada or "UA" as it is commonly known is a multi-craft union whose members are engaged in the fabrication, installation and servicing of piping systems. There are approximately 326,000 highly-skilled United Association members who belong to over 300 individual local unions across North America.

Founded in 1889, the United Association is one of the most respected and influential building trades unions in the U.S. and Canada today. It serves as a collective voice for workers through negotiation and collective bargaining with employing contractor groups, such as the Mechanical Contractors Association of America, and the National Association of Plumbing-Heating-Cooling Contractors. The UA is also a key member of the Building and Construction Trades Department, the AFL-CIO, and the Canadian Federation of Labour.

The United Association has been training qualified pipe tradesmen longer than anyone else in the industry. The UA boasts the premier training programs available in the industry today, including five-year apprenticeship programs, extensive journeyman training organized instructor training, and certification programs.



SMACNA of Oklahoma is MCA's operational partner and a chartered affiliate of The Sheet Metal and Air Conditioning Contractors’ National Association (SMACNA).

SMACNA is an international trade association representing 1,834 member firms in 97 chapters throughout the United States, Canada, Australia, and Brazil.  

A leader in promoting quality and excellence in the sheet metal and air conditioning industry, SMACNA contractors work in Heating, Ventilation, and Air conditioning, Architectural sheet metal, Industrial sheet metal, Kitchen equipment

Specialty stainless steel work, Manufacturing, Siding and decking, Testing and balancing, Service and retrofit, Energy management and maintenance.



The Oklahoma Construction Industry Coalition is a non-partisan organization whose constituents consist of both licensed and non-licensed trades as well as union and open shop companies.

The CIC represents a coalition of construction industry-related associations or member-based organizations of which MCA of Oklahoma is a proud member.



The mission of The Oklahoma Academy is educating Oklahomans about public policy, with the goal of equipping them to take a proactive role with leadership on every civic level.

As an “Honest Broker”, The Oklahoma Academy is a nonpartisan source of information about the issues facing our state. Through their Town Hall events, they provide a place for the process of creating solutions together. 

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