- Stein Inc
- Stein Inc
- Stein Steel Mill Svc
- Steve Yost Sales Co
- Structural Metals Inc
- Sumiden Wire Sales
- Tamco
- Texas Flame Inc
- Thompson Steel Co
- Thompson Steel Co Inc
- Timken Co
- Transcon Metal Inc
- Txi Chaparral Steel
- Txi Chaparral Steel
- TXI Chapparal Steel
- United States Steel Corp
- United States Steel Corp
- United States Steel Corp
- United States Steel Corp
- US Steel Granite City Works
- US Steel Granite City Works
- USS-Posco Industries
- V & M Star
- Valbruna Corp
- Valbruna Slater Stainless Inc
- W G Schmidt Sales
- W R Strand Co
- Wallace Barnes Steel
- WCI Steel Inc
- WCI Steel Inc
- WCI Steel Inc
- WDX Logistics
- Weirton Service Ctr Corp
- West Virginia Cold Drawn
- Western Steel Group
- Wheeling-Pittsburgh Corp
- Wheeling-Pittsburgh Steel Corp
- Wheeling-Pittsburgh Steel Corp
- Wheeling-Pittsburgh Steel Corp
- Wilton Precision Steel
- Worl Metals Inc
- Worthington Steel Co
