| CMCommercial Metals Company | Louisville | KY | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | San Bernardino | CA | — | ◇ UNVERIFIED |
| CECommscope, Euless Facility | Euless | TX | — | ◇ UNVERIFIED |
| CCContech Construction Prod | Winchester | KY | — | ◇ UNVERIFIED |
| CBCooper B-line INC | Sherman | TX | — | ◇ UNVERIFIED |
| CBCooper B Line LLC | Pinckneyville | IL | — | ◇ UNVERIFIED |
| CSCooper's Steel Fabricators | Shelbyville | TN | — | ◇ UNVERIFIED |
| CCCst Covers | Conroe | TX | — | ◇ UNVERIFIED |
| CSCst Storage | Dekalb | IL | — | ◇ UNVERIFIED |
| CSCst Storage | Parsons | KS | — | ◇ UNVERIFIED |
| DSDave Steel Company INC | Chesnee | SC | — | ◇ UNVERIFIED |
| DIDelongs Inc-delongs INC | Jefferson City | MO | — | ◇ UNVERIFIED |
 Drake-williams Steel | Omaha | NE | — | ◇ UNVERIFIED |
| EIEastpointe Industries | Muskogee | OK | — | ◇ UNVERIFIED |
| EFEdsco Fasteners | Denton | TX | — | ◇ UNVERIFIED |
| EMElectric Machinery Company LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| EAEnergy Absorption Systems INC Plt 1577 | Pell City | AL | — | ◇ UNVERIFIED |
| EPExport Plt | Export | PA | — | ◇ UNVERIFIED |
| FPFallon Plant | Fallon | NV | — | ◇ UNVERIFIED |
| FAFarr Air Pollution Control | Jonesboro | AR | — | ◇ UNVERIFIED |
| FFFernley Facility | Fernley | NV | — | ◇ UNVERIFIED |
| FMFormit Metal Fabricators LLC | York | PA | — | ◇ UNVERIFIED |
| FIFrazier Industrial CO CORP | Long Valley | NJ | — | ◇ UNVERIFIED |
| FIFrazier Industrial Company - Dyersburg, Tn Facility | Dyersburg | TN | — | ◇ UNVERIFIED |
| FIFrazier Industrial Idaho Falls | Idaho Falls | ID | — | ◇ UNVERIFIED |
| GPGeiger & Peters, INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| GIGreiner Ind Structural Steel Mfg Mt Joy | Mount Joy | PA | — | ◇ UNVERIFIED |
| GTGri Towers Texas | Amarillo | TX | — | ◇ UNVERIFIED |
| GIGulf Island LLC - Gulf Island Fabrication | Houma | LA | — | ◇ UNVERIFIED |
| HIHammerts Iron Works-hammerts Iron Works | Saint Louis | MO | — | ◇ UNVERIFIED |
| HSHigh Steel Structures Llc/lancaster Facility | Lancaster | PA | — | ◇ UNVERIFIED |
| HSHigh Steel Structures - Williamsport Facility | Williamsport | PA | — | ◇ UNVERIFIED |
| HSHighway Systems Incorporated | Sumterville | FL | — | ◇ UNVERIFIED |
| IIInwesco INC | Azusa | CA | — | ◇ UNVERIFIED |
| ISIowa Specialties | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| KRKaspar Ranch Hand | Shiner | TX | — | ◇ UNVERIFIED |
| KTKinro Texas | Mansfield | TX | — | ◇ UNVERIFIED |
| LSLenex Steel | Terre Haute | IN | — | ◇ UNVERIFIED |
| LALennox Aes-tallassee | Tallassee | AL | — | ◇ UNVERIFIED |
 Lippert Components | Rialto | CA | — | ◇ UNVERIFIED |
| Lippert Components, INC | Goshen | IN | — | ◇ UNVERIFIED |
| Lippert Components INC Plant 7 | Denver | PA | — | ◇ UNVERIFIED |
| Lippert Components Plant 084 | Nampa | ID | — | ◇ UNVERIFIED |
| Lippert Components Twin Falls 64 | Kimberly | ID | — | ◇ UNVERIFIED |
| LFL&m Fabrication & Machine Inc/ East Allen | Bath | PA | — | ◇ UNVERIFIED |
| LSLockport Steel Fabricators | Lockport | IL | — | ◇ UNVERIFIED |
| MSMarshall Steel Incorporated | Memphis | TN | — | ◇ UNVERIFIED |
| MOMetalcraft of Mayville | West Bend | WI | — | ◇ UNVERIFIED |
| MPMetal Pros | Wichita | KS | — | ◇ UNVERIFIED |
| MFMetals Fabrication | Airway Heights | WA | — | ◇ UNVERIFIED |
 Meyer Utility Structures, LLC Plant #1662 | Steele | AL | — | ◇ UNVERIFIED |
| Meyer Utility Structures LLC Plant 1665 | Lancaster | SC | — | ◇ UNVERIFIED |
| MAMft Acquisition CORP. (gerdau Ameristeel Formerly Operated at This Site) | Arlington | TN | — | ◇ UNVERIFIED |
| MSMica Steelworks Kaufman | Kaufman | TX | — | ◇ UNVERIFIED |
| MIMiller/greeneville INC. | Greeneville | TN | — | ◇ UNVERIFIED |
| MSMilton Steel CO | Milton | PA | — | ◇ UNVERIFIED |
| MWModern Welding Company of California | Fresno | CA | — | ◇ UNVERIFIED |
| MOMonotech of Mississippi | Iuka | MS | — | ◇ UNVERIFIED |
| MMMorton Metalcraft CO | Morton | IL | — | ◇ UNVERIFIED |
| MSMueller Systems | Cleveland | NC | — | ◇ UNVERIFIED |
| NPNekoosa Packaging, Memphis Boxplant | Memphis | TN | — | ◇ UNVERIFIED |
| NNelco | Houston | TX | — | ◇ UNVERIFIED |
| NANew Alenco Windows LTD | Bryan | TX | — | ◇ UNVERIFIED |
| NMNew Millenium Building Systems LLC | Butler | IN | — | ◇ UNVERIFIED |
| NVNucor Vulcraft Group - Grapeland Div | Grapeland | TX | — | ◇ UNVERIFIED |
| NVNucor Vulcraft Group Saint Joe Div | Saint Joe | IN | — | ◇ UNVERIFIED |
| OSOwen Steel CO | Columbia | SC | — | ◇ UNVERIFIED |
| OSOwen Steel Company | Wilmington | DE | — | ◇ UNVERIFIED |
| OWO W Hubbell & Sons | Ny Mills | NY | — | ◇ UNVERIFIED |
| PWPampa Wind Tower Manufacturing Facility | Pampa | TX | — | ◇ UNVERIFIED |
| PIPirod INC | Plymouth | IN | — | ◇ UNVERIFIED |
| PAPostle Aluminum (p0448) | Cassopolis | MI | — | ◇ UNVERIFIED |
| PSProspect Steel Company | Little Rock | AR | — | ◇ UNVERIFIED |
| QQsi | Dothan | AL | — | ◇ UNVERIFIED |
| RHRanch Hand Beeville | Beeville | TX | — | ◇ UNVERIFIED |
| SISabre Industries | Alvarado | TX | — | ◇ UNVERIFIED |
| SISabre Industries Conroe Tx Facility | Conroe | TX | — | ◇ UNVERIFIED |
| SISabre Industries Towers and Poles | Sioux City | IA | — | ◇ UNVERIFIED |
| SSSamuel Son and Company (usa) INC | Iuka | MS | — | ◇ UNVERIFIED |
| SFSapulpa Faclty | Sapulpa | OK | — | ◇ UNVERIFIED |
| SGSas Global Fka Sure Alloy Steel Corporation | Warren | MI | — | ◇ UNVERIFIED |
| STSauk Technologies | Saukville | WI | — | ◇ UNVERIFIED |
 Schuff Steel | Lindon | UT | — | ◇ UNVERIFIED |
| Schuff Steel | Bellemont | AZ | — | ◇ UNVERIFIED |
| Schuff Steel CO | Eloy | AZ | — | ◇ UNVERIFIED |
| Schuff Steel CO | Phoenix | AZ | — | ◇ UNVERIFIED |
| Schuff Steel Company | Stockton | CA | — | ◇ UNVERIFIED |
| Schuff Steel Gulf Coast | Humble | TX | — | ◇ UNVERIFIED |
| Schuff Steel Midwest | Ottawa | KS | — | ◇ UNVERIFIED |
| SOSfi of Arkansas | Conway | AR | — | ◇ UNVERIFIED |
| SOSfi of Tennessee | Memphis | TN | — | ◇ UNVERIFIED |
| S1Shape 1820 | Grand Haven | MI | — | ◇ UNVERIFIED |
| SMShugart Manufacturing | Chester | SC | — | ◇ UNVERIFIED |
| SJSmi Joist:cayce | Cayce | SC | — | ◇ UNVERIFIED |
| SRSmi Rebar South Caroliina | Columbia | SC | — | ◇ UNVERIFIED |
| STSolar Turbines Turbofab Facility | Channelview | TX | — | ◇ UNVERIFIED |
| SOSouthern Ohio Fabricators | Batavia | OH | — | ◇ UNVERIFIED |
| SPSouthern Post Texas | San Marcos | TX | — | ◇ UNVERIFIED |
| SCStandard Coating INC. | Madison Hts | MI | — | ◇ UNVERIFIED |
| SPStar Pipe USA | Coffeyville | KS | — | ◇ UNVERIFIED |
