| CSCbi Services | Everett | WA | — | ◇ UNVERIFIED |
| CWCb&i Water/warren Facility | Warren | PA | — | ◇ UNVERIFIED |
| CFCci Fluid Kinetics | Winfield | KS | — | ◇ UNVERIFIED |
| CMCd'a Metals | Wenatchee | WA | — | ◇ UNVERIFIED |
| CMCedar Mountain Cupolas LLC | Gray | ME | — | ◇ UNVERIFIED |
| CPCentennial Processing LLC | Gary | IN | — | ◇ UNVERIFIED |
| CCCenturion Container - Houston Facility | Houston | TX | — | ◇ UNVERIFIED |
| CTCeramic Technology | Cedar Bluff | VA | — | ◇ UNVERIFIED |
| CSCf Steel L.l.c. | Oakboro | NC | — | ◇ UNVERIFIED |
| CIChalfant INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| CMChanute Manufacturing, a Division of Optimus CORP. | Chanute | KS | — | ◇ UNVERIFIED |
| CMCharleston Marine Containers INC | North Charleston | SC | — | ◇ UNVERIFIED |
| CIChart INC Denver | Denver | CO | — | ◇ UNVERIFIED |
| CIChart Industries | Plaistow | NH | — | ◇ UNVERIFIED |
| CSChart Storage Systems - Denver, INC | Denver | CO | — | ◇ UNVERIFIED |
| CBChattanooga Boiler & Tank | Chattanooga | TN | — | ◇ UNVERIFIED |
| CPChicago Plating INC | Chicago | IL | — | ◇ UNVERIFIED |
| CHC. H. Kirkpatrick & Sons Welding Service, INC. | Cartersville | GA | — | ◇ UNVERIFIED |
| CMChoctaw Mfg and Dev CORP / Choctaw Metal and Goods Mfg Faclty | Hugo | OK | — | ◇ UNVERIFIED |
| CIChutes International | Waldorf | MD | — | ◇ UNVERIFIED |
| CICIP Industries, LLC | Panama City | FL | — | ◇ UNVERIFIED |
| CCCk & Company of Oregon INC | Salem | OR | — | ◇ UNVERIFIED |
| CEClean Earth Environmental Group, LLC | Birmingham | AL | — | ◇ UNVERIFIED |
| CMCleveland Manufacturing CO | Sweetwater | TN | — | ◇ UNVERIFIED |
| CSCompo Steel Products, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| CFConsol Fabricators CORP | Sun Valley | CA | — | ◇ UNVERIFIED |
| CFConsolidated Fabrication and Construction, INC. | Wilmington | DE | — | ◇ UNVERIFIED |
 Container Research CORP | Glen Riddle | PA | — | ◇ UNVERIFIED |
| Container Research Corp/lenni Rockdale | Glen Riddle | PA | — | ◇ UNVERIFIED |
| CEContech Engineered Solution LLC | Orchard Park | NY | — | ◇ UNVERIFIED |
 Contech Engineered Solutions | Wahoo | NE | — | ◇ UNVERIFIED |
| Contech Engineered Solutions LLC | Mitchell | IN | — | ◇ UNVERIFIED |
| CFContract Fabricators, Inc, Iuka Facility | Iuka | MS | — | ◇ UNVERIFIED |
| CIContract Industrial Tooling | Richmond | IN | — | ◇ UNVERIFIED |
| CMContractors Materials LLC | New Castle | DE | — | ◇ UNVERIFIED |
| CICorchran INC | Waseca | MN | — | ◇ UNVERIFIED |
 Cornerstone Fabricating & Construction Plt 1 | Hemlock | MI | — | ◇ UNVERIFIED |
| CRCornerstone Rack and Tooling, LLC | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| CRCovanta Resource Recovery Facility | Pittsfield | MA | — | ◇ UNVERIFIED |
| CFCreative Fabrication, INC | Covington | VA | — | ◇ UNVERIFIED |
| CSC S C INC | Medford | OR | — | ◇ UNVERIFIED |
| CCCurtiss-wright CORP | Wood Ridge | NJ | — | ◇ UNVERIFIED |
| CPCustom-bilt Products INC | Fairfield | AL | — | ◇ UNVERIFIED |
| CGCustom Grinders Sales, INC. | Chatsworth | GA | — | ◇ UNVERIFIED |
| CMCustom Metal Fabricators, INC. | Garden City | GA | — | ◇ UNVERIFIED |
| CMCustom Metal Fabricators, INC. | Lake Charles | LA | — | ◇ UNVERIFIED |
| CWC & W Quality Products Corporation | Owensboro | KY | — | ◇ UNVERIFIED |
| DFDabar Fab CO | Vero Beach | FL | — | ◇ UNVERIFIED |
| DMDarby Metalworks | Anderson | SC | — | ◇ UNVERIFIED |
| DDDay Dex CO. | Miami | FL | — | ◇ UNVERIFIED |
