- Alan Wire Co
- Algonquin Industries Inc
- American Precision Products
- American Steel & Aluminum Corp
- Ansonia Copper & Brass
- Bretz Builders
- Bretz Locks & Locksmith Svc
- Bretz's Carpets
- Bretzman's Garage
- Cerro Flow Products Inc
- Cerro Flow Products Inc
- Creftcon Industries
- Elkhart Products Corp
- Essex Electric Inc
- Hussey Copper LTD
- Industrial Tube Corp
- International Wire Group Inc
- Miller Co
- Mueller Copper Tube Co
- National Copper & Smelting
- National Copper Products Inc
- Nibco Virginia
- Northern States Metals
- Omega Wire Inc
- Phelps Dodge
- Phelps Dodge Copper Prod Co
- Phelps Dodge Refining Corp
- Phelps Dodge Specialty Copper
- Precision Shapes Inc
- Revere Copper Products Inc
- Revere Copper Products Inc
- Snoke Special Products Co Inc
- Somers Thin Strip
- Tube Forming Inc
- Wolverine Tube Inc
- Wolverine Tube Inc
- Wolverine Tube Inc
- Wolverine Tube Inc
- WYRE-WYND Life Wire Inc
