Sheet Metal Workers International Association
The Sheet Metal Workers’ International Association represents over 150,000 union members from over 100 chapters throughout the United States, Canada and Puerto Rico.

Local 36 represents over 2,300 members in St. Louis, Eastern Missouri and Arkansas.

Sheet Metal Contractors National Association
An international trade association dedicated to providing products, services and representation to enhance members, business, markets and profitability.

International Training Institute
Opportunity through education and technology. ITI provides a number of opportunities to union members in the sheet metal and air conditioning industry. They develop curriculum for journeyman and apprentice training programs, instructor training programs and certification testing programs.

Sheet Metal Occupational Health Trust
SMOHIT is a Joint Labor Management Trust whose mission is to provide industry leading health and safety solutions that will minimize illness and injuries in the sheet metal industry.

SMOHIT serves over 123,000 sheet metal workers and 4,500 contractors.

National Energy Management Institute
NEMI is a not-for-profit organization created in 1981 by the Sheet Metal Workers’ International Association (SMWIA) and the Sheet Metal and Air Conditioning Contractors' National Association (SMACNA).

Architectural Sheet Metal Initiative
Architectural Metal Expertise contractors provide the greatest range of architectural metal products and services available to the design community. These experts, who employ the construction industry’s most experienced and well trained craftsmen, work with architects, designers, builders, and owners to design and create award winning architectural metal projects that are developed and produced by combining old-world craftsmanship with cutting edge technology.

Union Label Trades
Production and manufacturing companies that use union sheet metal workers proudly adhere the union label to their products. Enter the SMWIA site to find out more.

National Center For Energy Management and Building Technologies
The National Center for Energy Management and Building Technologies is an independent, research institution that participates in standard setting, advances technical training and professional education, and serves as a repository of information on economic, technical, and public policy issues. The National Center acts as a resource to Federal agencies, state and local governments, building owners, the HVAC industry and consumers.

Industrial Expertise
Industrial Expertise contractors follow other accepted standards in the industrial market sector. These include standards set by (SMACNA), the American National Standards Institute (ANSI), National Fire Protection Association (NFPA), American Conference of Governmental Industrial Hygienists (ACGIH), American Society of Civil Engineers (ASCE), and American Welding Society (AWS).