| CCCerta Craft, Inc. | Indianapolis | IN | — | ◇ UNVERIFIED |
| CICerti-fab Industries, INC. | Crosby | TX | — | ◇ UNVERIFIED |
| CICgk INC Dba Paradise Steel | South El Monte | CA | — | ◇ UNVERIFIED |
| CICgk INC Dba Premier Steel Fabrication | South El Monte | CA | — | ◇ UNVERIFIED |
| CGC & G Machine | Granby | MA | — | ◇ UNVERIFIED |
| CGC G Systems INC | Lake Forest | CA | — | ◇ UNVERIFIED |
| CLChallenger Lifts INC | Louisville | KY | — | ◇ UNVERIFIED |
| CEChamfer Engineering INC | Brooklyn Park | MN | — | ◇ UNVERIFIED |
| CIChampion Ironworks Incorporated | Berryville | VA | — | ◇ UNVERIFIED |
 Chancey Metals LLC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| CFChannelview Facility | Houston | TX | — | ◇ UNVERIFIED |
| CHChanning Hammond | Goleta | CA | — | ◇ UNVERIFIED |
| CLCharley's LP Truck CORP. | Orlando | FL | — | ◇ UNVERIFIED |
| CIChart Industries, LLC | Troy | NY | — | ◇ UNVERIFIED |
| CWChenoa Welding & Fabrication, INC. | Chenoa | IL | — | ◇ UNVERIFIED |
| CHCherry Hill Fabrication | Curtis Bay | MD | — | ◇ UNVERIFIED |
| CECherrytree Enterprises INC | Kansas City | KS | — | ◇ UNVERIFIED |
| CEChickasaw Energy Solutions | Marietta | OK | — | ◇ UNVERIFIED |
| CIChico Ironworks INC | Chico | CA | — | ◇ UNVERIFIED |
| CUChico Unified School District | Chico | CA | — | ◇ UNVERIFIED |
| CFChris French Metal INC | Oakland | CA | — | ◇ UNVERIFIED |
| CPChris Property Service INC | Greenville | SC | — | ◇ UNVERIFIED |
| CCCii Cobb Industrial, INC. | Arlington | TX | — | ◇ UNVERIFIED |
| CDCimarron Development, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| CICinco Iron Works INC | Ontario | CA | — | ◇ UNVERIFIED |
| CHCircle H Welding & Fabrication, INC. | Seale | AL | — | ◇ UNVERIFIED |
| CSCircular Stairs INC | Little Neck | NY | — | ◇ UNVERIFIED |
| CICity Ironsmith, Corporation | Brooklyn | NY | — | ◇ UNVERIFIED |
| CCCives Corporation - Augusta | Augusta | ME | — | ◇ UNVERIFIED |
| CECivic Enterprises INC | West Monroe | LA | — | ◇ UNVERIFIED |
| CWC&j Welding and Fabricating, INC | Smyrna | GA | — | ◇ UNVERIFIED |
| CKC K Johnson Industries | Arcata | CA | — | ◇ UNVERIFIED |
| CSCladding Systems, INC | Tampa | FL | — | ◇ UNVERIFIED |
| CDClark Dietrich Building Systems | Woodland | CA | — | ◇ UNVERIFIED |
| CPClark Pacific Dba Pacific Embedded Products | Fontana | CA | — | ◇ UNVERIFIED |
| CSClark Substations L L C | Calera | AL | — | ◇ UNVERIFIED |
| CWClark Welding and Fabricating, INC. | Frederick | MD | — | ◇ UNVERIFIED |
| CMClassic Metals | Denver | CO | — | ◇ UNVERIFIED |
| CFClayton Fabrication and Metal Works INC. | Sikeston | MO | — | ◇ UNVERIFIED |
| CSClegg Steel | Salt Lake City | UT | — | ◇ UNVERIFIED |
| CSClermont Steel Fabricating, LLC | Batavia | OH | — | ◇ UNVERIFIED |
| CYCleveland Yutaka Corporation | Shelby | NC | — | ◇ UNVERIFIED |
| CKCliff Koppe Metals | Kelso | WA | — | ◇ UNVERIFIED |
| CMC&L Metal Sales LLC | Portland | OR | — | ◇ UNVERIFIED |
| CFCls Fabrication INC | Bend | OR | — | ◇ UNVERIFIED |
| CFCLUTCH FABRICATION & DESIGN LLC | Bloomington | IN | — | ◇ UNVERIFIED |
| CFCLUTCH FABRICATION & DESIGN LLC | Bloomington | IN | — | ◇ UNVERIFIED |
| CACMA Acquisitions, Inc. | Saint Joseph | MO | — | ◇ UNVERIFIED |
| CACmc Anchoring Systems | Salisbury | NC | — | ◇ UNVERIFIED |
| CCCmc Construction Svc | Kailua | HI | — | ◇ UNVERIFIED |
| CJCmc Joist and Deck Sc | Eastover | SC | — | ◇ UNVERIFIED |
| CJCmc Joist and Deck/ White Deer Twp | New Columbia | PA | — | ◇ UNVERIFIED |
| CPCmc Post Oklahoma LLC CO Commercial Met / Cmc Southern Post Durant | Durant | OK | — | ◇ UNVERIFIED |
| CRCmc Rebar | Navasota | TX | — | ◇ UNVERIFIED |
| CRCmc Rebar | Fredericksburg | VA | — | ◇ UNVERIFIED |
| CRCmc Rebar - Ca - Napa | Napa | CA | — | ◇ UNVERIFIED |
| CRCmc Rebar-ct-plainville | Plainville | CT | — | ◇ UNVERIFIED |
| CRCmc Rebar-in Muncie | Muncie | IN | — | ◇ UNVERIFIED |
| CRCmc Rebar - Kansas City | Kansas City | MO | — | ◇ UNVERIFIED |
| 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 |
| CMC M C Steel Fabricators, INC. | Starke | FL | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC | Las Vegas | NV | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC. | New Columbia | PA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators INC Dba Cmc Rebar Tracy | Tracy | CA | — | ◇ UNVERIFIED |
| CSCmc Steel Fabricators, INC Dba \ Cmc Steel Fresno | Fresno | CA | — | ◇ UNVERIFIED |
| CSC.m. Steel, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| CMCnc Metalcraft LLC | Hopkins | MN | — | ◇ UNVERIFIED |
 Coalfield Services - Old Shop | Wytheville | VA | — | ◇ UNVERIFIED |
| CICoal Iron LLC | Anderson | IN | — | ◇ UNVERIFIED |
| CICoal Iron LLC | Anderson | IN | — | ◇ UNVERIFIED |
| CCCoastal Construction and Lumber Company, INC | Yuba City | CA | — | ◇ UNVERIFIED |
| CICobb Industrial INC | Oak Brook | IL | — | ◇ UNVERIFIED |
| CICobb Industrial, INC. | Marietta | GA | — | ◇ UNVERIFIED |
| CICobb Industrial, INC. | Harahan | LA | — | ◇ UNVERIFIED |
| CCCobblestone Centre Lc | Oasis | UT | — | ◇ UNVERIFIED |
| CSCochrane Steel Industries, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| CCCofab Corporation | Vallejo | CA | — | ◇ UNVERIFIED |
| CCCoi CO | Chicago | IL | — | ◇ UNVERIFIED |
| CMCollier Metals, LLC. | Atlanta | GA | — | ◇ UNVERIFIED |
| CMCollier Metal Works LLC | Blackfoot | ID | — | ◇ UNVERIFIED |
| CWColonial Wagon & Wheel | Lancaster | OH | — | ◇ UNVERIFIED |
| CTColumbia Tackle INC | Portland | OR | — | ◇ UNVERIFIED |
| CDColumbus Design & Manufacturing, LLC | Columbus | OH | — | ◇ UNVERIFIED |
| CCom | San Fernando | CA | — | ◇ 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 | Brigham City | UT | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Harlingen | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | Houston | TX | — | ◇ UNVERIFIED |
| CMCommercial Metals Company | College Station | TX | — | ◇ UNVERIFIED |
| CWCommercial Warehouse | Shelbyville | TN | — | ◇ UNVERIFIED |
| CCComplete Construction, INC. | Farmingdale | NY | — | ◇ UNVERIFIED |
