The American Supply Association is a non-profit national organization serving the Plumbing, Heating, Cooling, and Piping (PHCP) and Industrial PVF industries. Since 1969, ASA has provided the forum for PHCP & PVF wholesale-distributors and their vendors from around the country to discuss critical issues facing them.

Members of ASA are distributors, manufacturers, service vendors and independent manufacturers representatives, who together create a powerful alliance of channel partners. Through corporate membership in ASA, all owners, executives and their employees may benefit from the wide variety of services available.

Founded in 1933, the non-profit Canadian Institute of Plumbing & Heating is a vibrant organization committed to providing its member with the tools for success in today’s competitive environment. CIPH includes over 250 member companies including manufacturers, wholesale distributors, master distributors, manufacturers’ agents and allied companies who manufacture and distribute plumbing, hydronic heating, industrial, waterworks and other mechanical products. CIPH wholesalers operate over 600 warehouses and showrooms across Canada. CIPH members employ over 10,000 Canadians and are an integral part of the Canadian economy.

The International Association of Plumbing and Mechanical Officials is a non-profit, mutual benefit corporation with its world headquarters in Ontario, California, USA.  With over 4,600 members located around the world, IAPMO strives to protect the health and safety of society through sound plumbing and mechanical practices.

IAPMO has served the plumbing and mechanical industry since 1926 through the development and maintenance of the Uniform Plumbing Code and Uniform Mechanical Code, the most widely adopted codes of their kind. IAPMO offers continuing education to apprentices, journeymen, inspectors, and other users and enforcers of these international safety standards.

The IAPMO Group consists of IAPMO; IAPMO Research & Testing, Inc., an international third party listing agency for plumbing and mechanical products; IAPMO Testing and Services LLC, a state of the art testing facility; and IAPMO Evaluation Services LLC, a listing agency for building products.

The Plumbing-Heating-Cooling Contractors Association is made up of nearly 4,000 contracting firms that represent men and women from open and union shops who work in residential, commercial, new construction, industrial and service and repair segments of the p-h-c industry. PHCC members have their own national lobbyist representing them on Capitol Hill and with federal agencies. They also have discounted access to many seminars, national gatherings, learning resources and valuable business services designed to take members' businesses to the next level.

The Radiant Panel Association is made up of manufacturers, distributors, contractors, and trade associates supporting hydronic, electric and air radiant panel heating and cooling. The mission of the RPA is to provide superior leadership to the radiant industry through comprehensive education while fostering the awareness of radiant comfort and innovative technology.