| CMCasara Modern | Huntington Beach | CA | — | ◇ UNVERIFIED |
| CSCascade Steel Rolling Mills, INC. | Mcminnville | OR | — | ◇ UNVERIFIED |
| CWCavert Wire INC. | Rural Hall | NC | — | ◇ UNVERIFIED |
| CECenterline Engineering | Comstock Park | MI | — | ◇ UNVERIFIED |
| CSCentral Steel & Wire | University Park | IL | — | ◇ UNVERIFIED |
| CWCentral Wire - Dumas Division | Dumas | AR | — | ◇ UNVERIFIED |
| CICeradyne INC 3m Company | Irvine | CA | — | ◇ UNVERIFIED |
| CEC E Steel Group | Spring | TX | — | ◇ UNVERIFIED |
| CMCharter Manufacturing Company, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| CSCharter Steel Cleveland INC (1318007658) | Cleveland | OH | — | ◇ UNVERIFIED |
| CMCherokee Manufacturing | South Saint Paul | MN | — | ◇ UNVERIFIED |
| CIClark Industrial INC. | Missoula | MT | — | ◇ UNVERIFIED |
| CMClearfield Metal Tech/clearfield Plt | Clearfield | PA | — | ◇ UNVERIFIED |
| CCCleveland Cliffs Steel Corporation - Ashland | Ashland | KY | — | ◇ UNVERIFIED |
| CRC&l Repair/fabrication LLC | Martins Ferry | OH | — | ◇ UNVERIFIED |
| CCCmc Construction Services | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CCCmc Construction Services | Columbia | SC | — | ◇ UNVERIFIED |
| CNCmc New Jersey | Sayreville | NJ | — | ◇ UNVERIFIED |
| CRCmc Rebar | Jacksonville | FL | — | ◇ UNVERIFIED |
| CSCmc Steel Us, LLC - Martinsburg | Martinsburg | WV | — | ◇ UNVERIFIED |
| CMCoastal Manufacturing | Watsonville | CA | — | ◇ UNVERIFIED |
| CWCoastal Wire Company, INC. | Casa Grande | AZ | — | ◇ UNVERIFIED |
| CSCol-fin Specialty Steel Ii LLC | New Brighton | PA | — | ◇ UNVERIFIED |
| CCometals | Cayce | SC | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Etiwanda | CA | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Jacksonville | FL | — | ◇ UNVERIFIED |
| CICommscope INC Statesville Plant Inactive | Statesville | NC | — | ◇ UNVERIFIED |
| CSContainer Stapling Company | Herrin | IL | — | ◇ UNVERIFIED |
| CWCove West Four Slide & Stamping CORP | Fullerton | CA | — | ◇ UNVERIFIED |
| CSCrest Steel | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| CSCuenca Steel Corporation | Miami | FL | — | ◇ UNVERIFIED |
| CSCustom Steel Fabricators, INC. | Columbia | TN | — | ◇ UNVERIFIED |
| COCycling on Two Wheels, LLC | Grovetown | GA | — | ◇ UNVERIFIED |
| DGDavis Gate + Wire Manufacturing, INC. | Russell Springs | KY | — | ◇ UNVERIFIED |
| DWDavis Wire Coporation | Hayward | CA | — | ◇ UNVERIFIED |
| DWDavis Wire CORP Dba Viking Wire LLC | Mira Loma | CA | — | ◇ UNVERIFIED |
| DWDavis Wire Pueblo CORP. | Pueblo | CO | — | ◇ UNVERIFIED |
| DRDayton Rogers Manufacturing company | Newberry | SC | — | ◇ UNVERIFIED |
| DRDayton Rogers of Ohio, Inc. | Obetz | OH | — | ◇ UNVERIFIED |
 Dayton Superior - Parsons | Parsons | KS | — | ◇ UNVERIFIED |
| DGDb Gurney CO | Whitman | MA | — | ◇ UNVERIFIED |
| DMDb Motoring Group, INC. | Miami | FL | — | ◇ UNVERIFIED |
| DDD & D Machine Works, INC. | Orem | UT | — | ◇ UNVERIFIED |
| DIDelos Industries Inc. | Payson | UT | — | ◇ UNVERIFIED |
| DCDeniston CO | Alsip | IL | — | ◇ UNVERIFIED |
| DSDetroit Steel CO Trenton | Trenton | MI | — | ◇ UNVERIFIED |
| DMDexter Marine Products LLC | San Marcos | CA | — | ◇ UNVERIFIED |
| DSDfp Systems | El Cajon | CA | — | ◇ UNVERIFIED |
| DSDirect Sales INC. | Hollywood | FL | — | ◇ UNVERIFIED |
| DMDluhos Metal Works INC. | El Campo | TX | — | ◇ UNVERIFIED |
