Cornerstone Building Brands, Inc.

Cornerstone Building Brands, Inc. is the largest manufacturer of exterior building products in North America, employing more than 18,000 people across over 175 facilities. The company operates in the residential construction, commercial construction, and community infrastructure sectors.

Its product lines include vinyl siding, windows, doors, metal roofing systems, and stone veneer, all for residential and commercial buildings. The firm's technical expertise spans manufacturing and construction materials engineering.

The company maintains a safety-focused, integrity-driven, and inclusion-oriented culture, with employee development programs, sustainable manufacturing practices, and community partnerships.