- Allegheny Ludlum Corp
- Brickman Group
- Canam Steel Corp
- CMC Joist
- CMC Joist Sales
- CMC Joist South Carolina
- Cole & Assoc Inc
- Darnell Steel Products
- Dietrich Industries Inc
- Engineering First Class
- Enterprise Industries Inc
- Gooderhenrichson
- ICSW Inc
- J Ulicki Steel
- KLT Sales Co
- Lonbuck Steel Inc
- Nucor Corp-Vulcraft Group
- PWH Steel
- Quincy Joist Co
- Quincy Joist Co
- Quincy Joist Co
- Quincy Joist Co
- Riopelle Engineering Sales Inc
- SMI Joist
- SMI Joist
- SMI Joist
- SMI Joist
- Socar Inc
- Socar Sales
- Southern Steel
- Valley Joist
- Valley Joist Inc
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Corp
- Vulcraft Inc
- WIS Steel Contractors Inc
