Plumbing-Heating-Cooling Contractors Association - Dedicated to the promotion, advancement, education and training of the industry, for the protection of our environment and the health, safety, and comfort of society. 

 NAHB is a trade association that helps promote the policies that make housing a national priority. Since 1942, NAHB has been serving its members, the housing industry, and the public at large.

 

      The American Society of Plumbing Engineers (ASPE) is the international organization for professionals skilled in the design, specification and inspection of plumbing systems. ASPE is dedicated to the advancement of the science of plumbing engineering, to the professional growth and advancement of its members and the health, welfare and safety of the public.         

  The Association of Independent Manufacturers'/Representatives, Inc. (AIM/R) is a trade association of independent sales representatives in the plumbing, HVAC/R, kitchen/bath, waterworks, irrigation and related industries. AIM/R members are the top agencies in the industry.

  NAA serves the interests of multifamily housing owners, managers, developers and suppliers, and promotes a high level of professionalism in the multifamily housing industry to better serve the rental housing needs of the public.