• Alpine Engineered Products, Inc.

• American Athletic, Inc.

• American Desk Company

• American Ingenuity Domes

• American Seating Co.

• American Shelter Technologies

• American Skylites

• American Standard Building Systems

• American Steel Span

• American Structures, Inc.

• Americana Building Products

• Anchor Industries

• Anglian Conservatories

• Aquatic Development Group, Inc.

• Archadeck of Central Virginia

• Archer Stadium Seats and Public Seating

• Armbruster Manufacturing Company

• Arthur Funk & Sons Inc.

• Ashland Inc.

• Associated Fiberglass Enterprises

• Atco Noise Management (Div of Atco Structures Inc.)

• Athens Steel Building Corp.

• Atlantic Fabritech

• Atlas Sound

• Austin Fabricating

• Auton Motorized Systems