| CRCmc Rebar - Muskogee | Muskogee | OK | — | ◇ UNVERIFIED |
| CRCmc Rebar Nc Raleigh | Raleigh | NC | — | ◇ UNVERIFIED |
| CRCmc Rebar Reno | Sparks | NV | — | ◇ UNVERIFIED |
| CRCmc Rebar-tn-memphis | Collierville | TN | — | ◇ UNVERIFIED |
| CRCmc Rebar - Wa - Auburn South | Auburn | WA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators | Houston | TX | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators-dba Cmc Rebar | Etiwanda | CA | — | ◇ UNVERIFIED |
| CMC M C Steel Fabricators, INC. | Starke | FL | — | ◇ UNVERIFIED |
| 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 Cable | Fontana | CA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Rebar Tracy | Tracy | CA | — | ◇ 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 |
| CICobb Industrial INC | Oak Brook | IL | — | ◇ UNVERIFIED |
| CICobb Industrial, INC. | Marietta | GA | — | ◇ UNVERIFIED |
| CICobb Industrial, INC. | Harahan | LA | — | ◇ UNVERIFIED |
| CSCochrane Steel Industries, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| CCCofab Corporation | Vallejo | CA | — | ◇ UNVERIFIED |
| CPCoflexip Products Division | Houston | TX | — | ◇ UNVERIFIED |
| CCCoi CO | Chicago | IL | — | ◇ UNVERIFIED |
| CMCollier Metals, LLC. | Atlanta | GA | — | ◇ UNVERIFIED |
| CPColumbia Place Associates, LLC | Syracuse | NY | — | ◇ UNVERIFIED |
| CTColumbia Tackle INC | Portland | OR | — | ◇ UNVERIFIED |
| CCom | San Fernando | CA | — | ◇ UNVERIFIED |
| CCComet Company | Addison | IL | — | ◇ UNVERIFIED |
| CACommercial and Industrial Piping | Quinby | SC | — | ◇ 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 | Harlingen | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Houston | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Brigham City | UT | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | College Station | TX | — | ◇ UNVERIFIED |
| CPCommercial Piping & Fabricators, INC | Tar Heel | NC | — | ◇ 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 |
| CSCompo Steel Products, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| CWConatser Welding and Machine, LLC | King City | CA | — | ◇ UNVERIFIED |
| CIConbraco Industries INC | Pageland | SC | — | ◇ 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 |
| CSConnecticut Stamping & Bending | New Britain | CT | — | ◇ UNVERIFIED |
| CMConnelly Mechanical INC. | Springfield | MO | — | ◇ UNVERIFIED |
| CAConover Area Fabricators Inc | Coatsburg | IL | — | ◇ UNVERIFIED |
| CHConrader Holdings, LLC | Erie | PA | — | ◇ UNVERIFIED |
| CIConsecon INC | Gardena | CA | — | ◇ UNVERIFIED |
| CSConshohocken Steel Products, INC. | Ambler | PA | — | ◇ UNVERIFIED |
| CFConsol Fabricators CORP | Sun Valley | CA | — | ◇ UNVERIFIED |
| CFConsolidated Fabrication and Construction, INC. | Wilmington | DE | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators | Auburn | MA | — | ◇ UNVERIFIED |
| CFConsolidated Fabricators CORP | Galt | CA | — | ◇ UNVERIFIED |
| CMConsolidated Metal Builders | Clovis | NM | — | ◇ UNVERIFIED |
| CSConsolidated Southern Industries | Anderson | SC | — | ◇ UNVERIFIED |
| CSConsolidated Southern Industries | Aiken | 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 |
| CEContech Engineered Solution LLC | Orchard Park | NY | — | ◇ UNVERIFIED |
 Contech Engineered Solutions | Wahoo | NE | — | ◇ UNVERIFIED |
| Contech Engineered Solutions LLC | Mitchell | IN | — | ◇ UNVERIFIED |
| CTContinental Tool Company INC | Redwood City | CA | — | ◇ UNVERIFIED |
| CMContour Metals CORP | South El Monte | CA | — | ◇ UNVERIFIED |
| CFContract Fabricators, INC | De Kalb | MS | — | ◇ UNVERIFIED |
| CFContract Fabricators, Inc, Iuka Facility | Iuka | MS | — | ◇ UNVERIFIED |
| CIContract Industrial Tooling | Richmond | IN | — | ◇ UNVERIFIED |
| CMContractors Materials Company | Cincinnati | OH | — | ◇ UNVERIFIED |
| CMContractors Materials LLC | New Castle | DE | — | ◇ UNVERIFIED |
| CWContractor's Welding, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| CSContract Services Corporation of America | Raytown | MO | — | ◇ UNVERIFIED |
| CVControl Valve Specialists INC | Houma | LA | — | ◇ 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 |
| CICorchran INC | Waseca | MN | — | ◇ UNVERIFIED |
| CBCore Brace LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| CMCore & Main | Waco | TX | — | ◇ UNVERIFIED |
 Cornerstone Fabricating & Construction Plt 1 | Hemlock | MI | — | ◇ UNVERIFIED |
| CMCorrugated Metals INC | Belvidere | IL | — | ◇ UNVERIFIED |
| CCCorvalve Component | Houma | LA | — | ◇ UNVERIFIED |
| CECosmo Enterprises LLC | New Haven | CT | — | ◇ UNVERIFIED |
| CICos-win INC. | Pine Forge | PA | — | ◇ UNVERIFIED |
| CSCouse & Sons, INC | Ballston Spa | NY | — | ◇ UNVERIFIED |
