On the Record · Cornerstone Building Brands
Cornerstone Building Brands subsidiaries, as it lists them
The subsidiaries Cornerstone Building Brands lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| AWC Holding Company | Delaware |
| Building Systems de Mexico, S.A. de C.V. | Mexico |
| Cornerstone Building Brands Canada, Inc. (f/k/a Gienow Canada, Inc.) | Ontario, Canada |
| Cornerstone Building Brands Services, Inc. | Delaware |
| Cornerstone Latin American Services, S.R.L. | Costa Rica |
| Environmental Materials, LLC | Delaware |
| M.A.C. Métal Architectural Inc. | Quebec, Canada |
| Mastic Home Exteriors, Inc. | Ohio |
| Metal Sales Manufacturing LLC | Kentucky |
| Metal Sales Manufacturing Transportation, LLC | Indiana |
| Mitten Inc. | Ontario, Canada |
| MW Manufacturers Inc. | Delaware |
| MWM Holding, Inc. | Delaware |
| Mueller Supply Company, Inc. | Texas |
| NCI Group, Inc. | Nevada |
| Ply Gem Industries, Inc. | Delaware |
| Robertson-Ceco II Corporation | Delaware |
| Variform, Inc. | Missouri |
From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.
Read from Cornerstone Building Brands’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-03-12. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.