- Arcon Industries
- Artisan Sheet Metal Corp
- Boston Mountain Copper Co
- Bretz Auto Sales
- Cambridge-Lee Industries Inc
- Camden Wire Co Inc
- Camden Wire Co Inc
- Christy Metals Co
- Christy Metals Co
- Circle City Copperworks
- Clayton Metals Inc
- Clayton Metals Inc
- Copper & Brass Sales Inc
- Copper Manor Architectural
- Copper Shop
- DNT Inc
- Golden Eagle Coppersmiths
- International Wire Co
- New Haven Copper Co
- Outokumpu Copper Franklin Inc
- Wolverine Tube Inc