| CSCmc Steel Fabricators, INC | Las Vegas | NV | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC. | New Columbia | PA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Rebar Tracy | Tracy | CA | — | ◇ UNVERIFIED |
| CSCmc Steel Us, LLC - Martinsburg | Martinsburg | WV | — | ◇ UNVERIFIED |
| CSC.m. Steel, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
 Coalfield Services - Old Shop | Wytheville | VA | — | ◇ UNVERIFIED |
| CICoal Iron LLC | Anderson | IN | — | ◇ UNVERIFIED |
| CICoal Iron LLC | Anderson | IN | — | ◇ UNVERIFIED |
| CMCoastal Manufacturing | Watsonville | CA | — | ◇ UNVERIFIED |
| CICobb Industrial INC | Oak Brook | IL | — | ◇ UNVERIFIED |
| CICobb Industrial, INC. | Harahan | LA | — | ◇ UNVERIFIED |
| CICobb Industrial, INC. | Marietta | GA | — | ◇ UNVERIFIED |
| CSCochrane Steel Industries, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| CCCofab Corporation | Vallejo | CA | — | ◇ UNVERIFIED |
| CCCoi CO | Chicago | IL | — | ◇ UNVERIFIED |
| CSCol-fin Specialty Steel Ii LLC | New Brighton | PA | — | ◇ UNVERIFIED |
| CMCollier Metals, LLC. | Atlanta | GA | — | ◇ UNVERIFIED |
| CTColumbia Tackle INC | Portland | OR | — | ◇ UNVERIFIED |
| CCom | San Fernando | CA | — | ◇ UNVERIFIED |
| CCometals | Cayce | SC | — | ◇ UNVERIFIED |
| CCComet Company | Addison | IL | — | ◇ UNVERIFIED |
| CFCommercial Fabricating and Engineering, Inc. | Wixom | MI | — | ◇ UNVERIFIED |
| CFCommercial Fabricating & Engineering INC | Highland | MI | — | ◇ UNVERIFIED |
| CMCommercial Metal Company | Fredericksburg | VA | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Etiwanda | CA | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Jacksonville | FL | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | College Station | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Houston | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Harlingen | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Brigham City | UT | — | ◇ UNVERIFIED |
| CWCommercial Warehouse | Shelbyville | TN | — | ◇ UNVERIFIED |
| CMComplete Metal Fabrication, LLC | Jupiter | FL | — | ◇ UNVERIFIED |
| CFComplex Fabricators, Inc. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| CPComposite Plastic Systems | Santa Maria | CA | — | ◇ UNVERIFIED |
| CWConatser Welding and Machine, LLC | King City | CA | — | ◇ UNVERIFIED |
| CIConcord Iron Works INC | Pittsburg | CA | — | ◇ UNVERIFIED |
| CIConcord Iron Works INC | Pittsburg | CA | — | ◇ UNVERIFIED |
| CWCon-fab Welding INC. | Shreveport | LA | — | ◇ UNVERIFIED |
| CMConnecticut Metalworks, LLC | Newington | CT | — | ◇ UNVERIFIED |
| CAConover Area Fabricators Inc | Coatsburg | IL | — | ◇ UNVERIFIED |
| CSConshohocken Steel Products, INC. | Ambler | PA | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators | Auburn | MA | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators CORP | Galt | CA | — | ◇ UNVERIFIED |
| CMConsolidated Metal Builders | Clovis | NM | — | ◇ UNVERIFIED |
| CSConsolidated Southern Industries | Aiken | SC | — | ◇ UNVERIFIED |
| CSConsolidated Southern Industries | Anderson | SC | — | ◇ UNVERIFIED |
| CSConsolidated Southern Industries INC | Anderson | SC | — | ◇ UNVERIFIED |
| CSConsolidated Steel Services, LLC | Charlotte | NC | — | ◇ UNVERIFIED |
| CHConstr Hot Line & Mgmt Partners INC Dba Champ Stee | Santa Ana | CA | — | ◇ UNVERIFIED |
| CMConstruction Materials INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| CMConstruction Materials, INC. | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| CPConstruction Products Dist LLC | Des Moines | IA | — | ◇ UNVERIFIED |
| CSConstruction Systems INC | Maple Plain | MN | — | ◇ UNVERIFIED |
| CTContinental Tool Company INC | Redwood City | CA | — | ◇ UNVERIFIED |
| CMContour Metals CORP | South El Monte | CA | — | ◇ UNVERIFIED |
| CFContract Fabricators, INC | De Kalb | MS | — | ◇ UNVERIFIED |
| CIContract Industrial Tooling | Richmond | IN | — | ◇ UNVERIFIED |
| CMContractors Materials Company | Cincinnati | OH | — | ◇ UNVERIFIED |
| CWContractor's Welding, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| CSContract Services Corporation of America | Raytown | MO | — | ◇ UNVERIFIED |
| CACool-vue Aluminum, INC. | Kenner | LA | — | ◇ UNVERIFIED |
| CPCooper Power Systems | Waukesha | WI | — | ◇ UNVERIFIED |
| CSCooper's Steel Fabricators INC | Shelbyville | TN | — | ◇ UNVERIFIED |
| CSCooper Steel of Virginia | Lynchburg | VA | — | ◇ UNVERIFIED |
| CSCooper Steel Site Development | Shelbyville | TN | — | ◇ UNVERIFIED |
| CSCooper Steel Site Development | Shelbyville | TN | — | ◇ UNVERIFIED |
| CSCoosa Steel Corporation | Rome | GA | — | ◇ UNVERIFIED |
| CVCoosa Valley Steel, INC. | Attalla | AL | — | ◇ UNVERIFIED |
| CICoral Industries, INC. (northport) | Northport | AL | — | ◇ UNVERIFIED |
| CBCore Brace LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| CECosmo Enterprises LLC | New Haven | CT | — | ◇ UNVERIFIED |
| CICos-win INC. | Pine Forge | PA | — | ◇ UNVERIFIED |
| CSCouse & Sons, INC | Ballston Spa | NY | — | ◇ UNVERIFIED |
| CMCovey Machine, INC. | Chicago | IL | — | ◇ UNVERIFIED |
| CCCowboy Cauldron Company | Salt Lake City | UT | — | ◇ UNVERIFIED |
| CSCowboy Steel Company | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CMCox Machine, LLC | Searsmont | ME | — | ◇ UNVERIFIED |
| CICpco, INC. | Claremore | OK | — | ◇ UNVERIFIED |
| CICraftcorps INC. | Austin | TX | — | ◇ UNVERIFIED |
| CMCraftworx Metal & Fabrication LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| CHCraigin Holdings, Inc. | New Paris | IN | — | ◇ UNVERIFIED |
| CCCr Coating & Logistics | Kissimmee | FL | — | ◇ UNVERIFIED |
| CMCreative Metals INC Dba Ashworth Metal Products | Anaheim | CA | — | ◇ UNVERIFIED |
| CMCreative Metal Solutions, Inc. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| CWCreative Werks Inc | Des Moines | IA | — | ◇ UNVERIFIED |
| CSCreole Steel, INC. | Sulphur | LA | — | ◇ UNVERIFIED |
| CMCrown Metals, LLC | Albany | LA | — | ◇ UNVERIFIED |
| COCrown Oilfield Services, INC. | Morgan City | LA | — | ◇ UNVERIFIED |
| CTCruisin' Tikis, LLC | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| CICrystal Industries Incorporated | Elkhart | IN | — | ◇ UNVERIFIED |
| CSCrystal Steel | Gallaway | TN | — | ◇ UNVERIFIED |
| CSCrystal Steel Fabricators, LLC - Memphis Division | Gallaway | TN | — | ◇ UNVERIFIED |
| CEC&s Engineering, INC. | Meriden | CT | — | ◇ UNVERIFIED |
| CICtec INC. | Sacramento | CA | — | ◇ UNVERIFIED |
| CSCuenca Steel Corporation | Miami | FL | — | ◇ UNVERIFIED |
| CICumberland Ironworks, INC. | Durham | ME | — | ◇ UNVERIFIED |
| CSCundiff Steel Fab & Erecting | Orange | CA | — | ◇ UNVERIFIED |
| CSCundiff Steel Fabricating & Erecting INC | Orange | CA | — | ◇ UNVERIFIED |
| CCCustom Concepts Miami Inc | Miami | FL | — | ◇ UNVERIFIED |
