| 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 |
| 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 |
 Cornerstone Fabricating & Construction Plt 1 | Hemlock | MI | — | ◇ UNVERIFIED |
| CFCornerstone Fencing CO | Milwaukie | OR | — | ◇ UNVERIFIED |
| CFCornerstone Fencing CO | Milwaukie | OR | — | ◇ UNVERIFIED |
| CMCornerstone Manufacturing, INC. | Eaton | OH | — | ◇ UNVERIFIED |
| CRCorporate Resource Services | Ontario | CA | — | ◇ UNVERIFIED |
| CECosmo Enterprises LLC | New Haven | CT | — | ◇ UNVERIFIED |
| CICos-win INC. | Pine Forge | PA | — | ◇ UNVERIFIED |
| CCCothron Contracting LLC | Dover | FL | — | ◇ UNVERIFIED |
| CCCountry Custom Metalsmithing LLC | Fallon | NV | — | ◇ UNVERIFIED |
| CICourtad INC | Lansdale | 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 |
| CRCox Rails | Richmond | VA | — | ◇ 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 |
| CACreative Architectural Metals INC | Bensalem | PA | — | ◇ UNVERIFIED |
| CFCreative Fabrication, INC | Covington | VA | — | ◇ UNVERIFIED |
| CMCreative Metals INC Dba Ashworth Metal Products | Anaheim | CA | — | ◇ UNVERIFIED |
| CMCreative Metals LLC | Tempe | AZ | — | ◇ UNVERIFIED |
| CMCreative Metal Solutions, Inc. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| CWCreative Welding & Fabrication LLC | Fort Collins | CO | — | ◇ UNVERIFIED |
| CWCreative Werks Inc | Des Moines | IA | — | ◇ UNVERIFIED |
| CRCredit River Metalworks INC | Prior Lake | MN | — | ◇ UNVERIFIED |
| CSCreole Steel, INC. | Sulphur | LA | — | ◇ UNVERIFIED |
| CGCriterion Gate & Mfg CO | Los Angeles | CA | — | ◇ UNVERIFIED |
| CFCrown Fence CO | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| CMCrown Metals, LLC | Albany | LA | — | ◇ UNVERIFIED |
