Glass Contractors, Glaziers Trade Associations

Architectural Glass & Metal Association (AGMA)

Regional trade association serving glazing contractors and affiliated service providers in southeastern Pennsylvania, southern New Jersey, Delaware and Maryland; focuses on contractor advocacy, labor relations, and professional development. Membership size not publicly disclosed.

https://agma.glass Membership: 0

Architectural Metal & Glass Association (AM&GA)

New York–area trade organization advocating for contractors, installers, manufacturers, and vendors in the architectural metal and glass sector; provides networking, policy engagement, and labor agreement resources. Membership size not publicly disclosed.

https://www.amganyc.com/ Membership: 0

Australian Glass and Window Association (AGWA)

Australia’s peak body for the glass, glazing and window industry, representing manufacturers, glaziers, installers and suppliers; provides accreditation, technical support, training and advocacy.

https://www.agwa.com.au/ Membership: 1,200

California Glass Association (CGA)

Statewide association re-established with NGA chapter affiliation to connect and support California’s glazing community with training, codes/Title 24 updates, and events. Membership size not publicly disclosed.

https://californiaglassassociation.org/ Membership: 0

Colorado Glazing Contractors Association (CGCA)

NGA-affiliated chapter supporting Colorado’s glazing contractors through education, networking and industry development; noted as serving 20+ members (per local member summary).

https://www.linkedin.com/company/colorado-glazing-contractors-association/ Membership: 20

Connecticut Glass Dealers Association (CGDA)

State association for flat and auto glass businesses offering advocacy, apprentice training (state-approved), technical support and networking for dealers and glaziers. Membership size not publicly disclosed.

https://ctglass.org/ Membership: 0

Fenestration & Glazing Industry Alliance (FGIA)

North American alliance formed January 1, 2020 from the unification of AAMA (300+ members) and IGMA (about 140 members), now leading on codes, standards, certification and education across glazing and fenestration. Combined membership estimated 400+ organizations (overlap possible).

https://www.fgiaonline.org/ Membership: 440

Fenestration Canada

Canada’s national organization representing the window, door and commercial glazing sector; provides technical advocacy, code guidance, and national events (e.g., WinDoor). Reported milestone: 350+ members as of Nov. 25, 2024.

https://www.fenestrationcanada.ca/ Membership: 350

Glass & Metal Alliance (Greater Philadelphia)

Greater Philadelphia region initiative (formerly the Architectural Glass Institute) that elevates architectural glass and metal contractors and craftworkers via education, outreach and market development; closely aligned with the Architectural Glass & Metal Association. Membership size not publicly disclosed.

https://www.theagi.org/ Membership: 0

Glass Manufacturing Industry Council (GMIC)

U.S. trade association linking glass producers, suppliers and researchers across flat/float, container, fiber and specialty segments; provides advocacy, technical programs and the Glass Problems Conference. CauseIQ reports 32 member organizations (2023 filing).

https://gmic.org/ Membership: 32

Houston Area Glass Association (HAGA)

Regional division of the Texas Glass Association serving the Houston area; offers events, scholarships and networking for glass and glazing firms. Membership size not publicly disclosed.

https://www.houstonglass.org/ Membership: 0

Mid-Atlantic Glass Association

Longstanding regional association for glass industry professionals in DC/MD/VA; hosts the Mid-Atlantic Glass Expo and provides training and networking. 2024 Expo drew 1,600+ attendees and 118 exhibitors; membership count not publicly disclosed.

https://www.midatlanticglass.org/ Membership: 0

Minnesota Glass Association

Statewide trade association advocating for architectural and auto glass businesses in Minnesota through lobbying, training, and member discounts (including NGA training resources). Membership size not publicly disclosed.

https://mnglass.org/ Membership: 0

National Architectural Glass & Metal Association (NAGMA)

Founded in 2020 to advance safety and quality workmanship in glazing; works with local associations and signatory contractors on NACC certification support, training and market development. Membership size not publicly disclosed.

https://www.nagmassociation.org/ Membership: 0

National Glass Association (NGA)

Largest U.S. trade association for the glass and glazing supply chain; provides codes/technical resources, education (e.g., MyGlassClass), and produces GlassBuild America. Member community: 1,900+ companies.

https://www.glass.org/ Membership: 1,900

Northern California Glass Management Association (NCGMA)

Association representing union glazing contractors and manufacturers in Northern California; focuses on labor relations, compliance support, training and workforce development. Membership size not publicly disclosed.

https://ncgma.org/ Membership: 0

Sealant, Waterproofing & Restoration Institute (SWR Institute)

International trade association for the sealant, waterproofing and restoration sector—key interfaces with glazing and building envelope work; offers standards, education and a Verified Contractor program. Membership: 280+ member companies.

https://www.swrionline.org/ Membership: 280

Stained Glass Association of America (SGAA)

National trade association and accrediting body for architectural art glass studios and professionals; publishes Stained Glass Quarterly and serves the U.S. stained glass community. Serves 1,500+ professionals across the U.S.

https://www.stainedglass.org/ Membership: 1,500

Texas Glass Association (TGA)

Statewide association advancing the glass industry in Texas, including glazing contractors and suppliers; offers advocacy, training and the Texas Glass Conference. Membership size not publicly disclosed.

https://texasglass.org/ Membership: 0

Washington Glass Association (WGA)

Washington State’s glass‑specific trade association for glaziers and related businesses; provides education, networking, scholarships and group benefits; official NGA state chapter. Membership size not publicly disclosed.

https://www.wg-a.org/ Membership: 0