• ASI Advanced Structures

• Advanced Architectural Frames

• American Buildings Co.

• American Straight Steel Buildings

• Delta Structures

• GS Metals Corp.

• Gulf States Manufacturers

• Lamboo® Incorporated

• Mero Structures

• Petersen Aluminum Corporation

• Poltec Industries Ltd.

• Schwartzmiller Company

• Southeastern Metals Manufacturing Co., Inc.

• Spina's Steel Workers Co., Ltd.

• TriPyramid Structures, Inc.

• US Door & Building Components