| | | | | | | | |
| Appleton Supply Company, Inc. | Delaware |
| D.S.B. Holding Corp. | Delaware |
| The D.S. Brown Company | Ohio |
| Florence Corporation | Illinois |
| Florence Corporation of Kansas | Kansas |
| Gibraltar Industries Holding Company (UK) Limited | United Kingdom |
| Rough Brothers Greenhouse Manufacturing (Shanghai) Co., Ltd | China |
| Gibraltar Steel Corporation of New York | New York |
| Southeastern Metals Manufacturing Company, Inc. | Florida |
| Pacific Awards Metals, Inc. | California |
| Noll/Norwesco, LLC | Delaware |
| SBC Acquisition, LLC | Delaware |
| Air Vent Inc. | Delaware |
| Quality Aluminum Products, LLC | Delaware |
| Rough Brothers Holding Co., Inc. | Ohio |
| Terrasmart, Inc. | Ohio |
| Rough Brothers Manufacturing, Inc. | Ohio |
| Prospiant, Inc. | Ohio |
| Apeks, LLC | Ohio |
| Thermo Energy Solutions, Inc. | Canada |
| Architectural Mailboxes, Inc. | Delaware |