The NGA’s four leading market research programs, published by Glass Magazine and Window + Door, provide critical industry performance data and information about the North American glass, glazing and fenestration markets.
The annual Top List programs survey companies in the glazing, glass fabrication, metal supply and fenestration manufacturing segments to offer:
Leading companies ranked by annual sales
Market performance data
Industry trends and challenges to track
Annual Top List Programs
The annual report features the leading suppliers of metal products in the United States and Canada. It includes companies that manufacture, fabricate and sell curtain wall, storefront and entrances, commercial interior and exterior railings, aluminum composite panels and exterior sun-control products to the glass and glazing industry.
This annual ranking details North America's largest manufacturers of residential windows, doors, skylights and related products, based on sales volume.