Founded in 1948, the National Glass Association (NGA) combined with the Glass Association of North America (GANA) on February 1, 2018 to form the largest trade association serving the architectural glass and metals industry supply chain, including glazing contractors, full-service glass companies, glass fabricators, primary glass manufacturers and suppliers to the industry.  It is a technical powerhouse that brings some of the best minds to the table to create technical resources and promote and advocate for glass in buildings.  NGA’s education and training resources—both in print and online at MyGlassClass.com—and its official publications Glass Magazine and Window & Door, keep the industry knowledgeable and well-informed. NGA produces the industry’s largest annual trade show in the Americas, GlassBuild America, hosts these events:  Annual Conference, Building Envelope Contractors (BEC) Conference, Fall Conference, the Glazing Executives Forum, and is a co-sponsor of Glass Processing Automation Days (GPAD).

NGA’s sister organization, the Window and Door Dealers Alliance, represents the interests of retail, wholesale, and installing dealers of new and replacement windows, doors, skylights, and related building products.

NGA's Mission and Code of Ethics.

NGA's Purpose, Vision and Goals.

NGA's Privacy Policy.