National Glass Association
Founded in 1948, the National Glass Association is the largest trade association representing the architectural glass industry. Based outside Washington, DC, and representing nearly 2,200 member companies and locations, NGA offers education and training, including MyGlassClass.com.
NGA publishes the industry’s leading trade magazines: Glass Magazine® and Window & Door®; and e-newsletters: e-glass weekly and WDweekly.
NGA serves the industry and general public with its Web sites: glass.org, GlassBuildAmerica.com, GlassMagazine.com, WindowandDoor.com, and WDDAlliance.org. and hosts the industry’s premier annual trade event: GlassBuild America: The Glass, Window & Door Expo®.
The Window & Door Dealers Alliance, an organization for independent window and door dealers, is also an initiative of the NGA.