American Spring Wire Corp. - http://www.americanspringwire.com
Insteel Wire Products - http://www.insteel.com
Strand-Tech Martin, Inc. - http://www.strandtech.com
Sumitomo/SWPC/S W Sales - http://www.sumidenwire.com
Trefil Arbed, Inc. - http://www.trefilarbed.com
TYCSA - Trenzas y Cables, S.L. - http://www.tycsa.com