| CFContract Fabricators, INC | De Kalb | MS | — | ◇ UNVERIFIED |
| CIContract Illumination, INC | Orange | CA | — | ◇ UNVERIFIED |
| CIContract Industrial Tooling | Richmond | IN | — | ◇ UNVERIFIED |
| CMContractors Materials Company | Cincinnati | OH | — | ◇ UNVERIFIED |
| CPContractors Precast CORP. | Davidsonville | MD | — | ◇ UNVERIFIED |
| CWContractor's Welding, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| CSContract Services Corporation of America | Raytown | MO | — | ◇ UNVERIFIED |
| CACool-vue Aluminum, INC. | Kenner | LA | — | ◇ UNVERIFIED |
| CDCooper Drum Company | Richmond | CA | — | ◇ 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 |
| CWCooper Wilbert Vault CO | Barrington | NJ | — | ◇ UNVERIFIED |
| CSCoosa Steel Corporation | Rome | GA | — | ◇ UNVERIFIED |
| CVCoosa Valley Steel, INC. | Attalla | AL | — | ◇ UNVERIFIED |
| CCCopperfield Chimney Supply CORP | Swedesboro | NJ | — | ◇ UNVERIFIED |
| CICoral Industries, INC. (northport) | Northport | AL | — | ◇ UNVERIFIED |
| CRCoral Reef Cast Stone | Manalapan | FL | — | ◇ UNVERIFIED |
| CBCore Brace LLC | West Jordan | UT | — | ◇ UNVERIFIED |
| CSCoreslab Structures (ariz) INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| CSCoreslab Structures (atlanta) INC. | Duluth | GA | — | ◇ UNVERIFIED |
| CSCoreslab Structures Indianapolis Incorporated | Indianapolis | IN | — | ◇ UNVERIFIED |
| CSCoreslab Structures (miami) INC. | Doral | FL | — | ◇ UNVERIFIED |
| CCCornerstone Concrete Services LLC | Boise | ID | — | ◇ UNVERIFIED |
| CICoronado Irrigation Services | Delano | CA | — | ◇ UNVERIFIED |
| CSCoronado Stone Products | Westfield | NY | — | ◇ UNVERIFIED |
| CCCortland Container CORP | Port Arthur | TX | — | ◇ UNVERIFIED |
| CECosmic Eats, INC. | Cary | NC | — | ◇ UNVERIFIED |
| CICOSM Inc. | Paso Robles | CA | — | ◇ UNVERIFIED |
| CECosmo Enterprises LLC | New Haven | CT | — | ◇ UNVERIFIED |
| CICos-win INC. | Pine Forge | PA | — | ◇ UNVERIFIED |
| CECoufal Equipment CO | Temple | TX | — | ◇ UNVERIFIED |
| CCCountry Customs Corral | La Puente | CA | — | ◇ UNVERIFIED |
| CMCounty Materials CORP | Elderon | WI | — | ◇ UNVERIFIED |
| CMCounty Materials Laydown Yard Expansion | Maxwell | IN | — | ◇ UNVERIFIED |
| CSCouse & Sons, INC | Ballston Spa | NY | — | ◇ UNVERIFIED |
| CBCovered Bridge Precast | Ephrata | PA | — | ◇ 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 |
 Cox Manufacturing Dba Dalton Ag Products | Lenox | IA | — | ◇ 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 |
| CACrary Agricultural Solutions LLC | Morgan | MN | — | ◇ UNVERIFIED |
| CCCr Coating & Logistics | Kissimmee | FL | — | ◇ UNVERIFIED |
| CACreative Automation Company | Sun Valley | CA | — | ◇ UNVERIFIED |
| CMCreative Metals INC Dba Ashworth Metal Products | Anaheim | CA | — | ◇ UNVERIFIED |
| CMCreative Metal Solutions, Inc. | Sioux Falls | SD | — | ◇ UNVERIFIED |
| CSCreative Stone Mfg, Coronado Stone Prod | Perris | CA | — | ◇ UNVERIFIED |
| CSCreative Stone Mfg,. INC. | Fontana | CA | — | ◇ UNVERIFIED |
| CSCreative Stone Mfg, INC Dba Coronado Stone Products | Fontana | CA | — | ◇ UNVERIFIED |
| CWCreative Werks Inc | Des Moines | IA | — | ◇ UNVERIFIED |
| CSCreole Steel, INC. | Sulphur | LA | — | ◇ UNVERIFIED |
| CPCrest Precast INC | La Crescent | MN | — | ◇ 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 |
| CIC.s.c.s. INC. | Dallas | TX | — | ◇ UNVERIFIED |
| CEC&s Engineering, INC. | Meriden | CT | — | ◇ UNVERIFIED |
| CICsh Industries, INC. | Plymouth | MA | — | ◇ UNVERIFIED |
| CICtec INC. | Sacramento | CA | — | ◇ UNVERIFIED |
| CPCtu Precast | Marysville | CA | — | ◇ 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 |
| CCCustom Concrete Homes | Resaca | GA | — | ◇ UNVERIFIED |
| CICustomcrete, Inc | Saint Louis | MO | — | ◇ UNVERIFIED |
| CCCustom Cutting Tools | San Diego | CA | — | ◇ UNVERIFIED |
 Custom Design & Manufacturing | Carrollton | MI | — | ◇ UNVERIFIED |
| CDCustom Drum Services | High Point | NC | — | ◇ UNVERIFIED |
| CFCustom Fabricated Metals, LLC | Perris | CA | — | ◇ UNVERIFIED |
 Custom Iron Works | Lodi | CA | — | ◇ UNVERIFIED |
| Custom Iron Works, INC. | South Beloit | IL | — | ◇ UNVERIFIED |
| CMCustom Metals | Little Rock | AR | — | ◇ UNVERIFIED |
| CMCustom Metal & Siding | Leesville | LA | — | ◇ UNVERIFIED |
| CPCustom Packline Engineering | Visalia | CA | — | ◇ UNVERIFIED |
| CPCustom Precast Products | Lumberton | MS | — | ◇ UNVERIFIED |
 Custom Products of Litchfield INC | Litchfield | MN | — | ◇ UNVERIFIED |
| CSCustom Sheet and Plate, LLC | Tarentum | PA | — | ◇ UNVERIFIED |
| CSCustom Sheet and Steel Fabrication INC. | Council Grove | KS | — | ◇ UNVERIFIED |
| CSCustom Sheet & Steel Fabricators | Council Grove | KS | — | ◇ UNVERIFIED |
| CSCustom Steel Manufacturing INC. | Belton | MO | — | ◇ UNVERIFIED |
| CSCustom Steel Service | Ames | IA | — | ◇ UNVERIFIED |
| CFC-ville Fabricating INC Dba Tarter | Liberty | KY | — | ◇ UNVERIFIED |
| CMCw Mcgrath INC | El Cajon | CA | — | ◇ UNVERIFIED |
| CFCyncal Fabricators Inc | Bay Shore | NY | — | ◇ UNVERIFIED |
| DHD3 Holdings LLC | Whitestown | IN | — | ◇ UNVERIFIED |
| DEDade Engineering Group LLC | Miami | FL | — | ◇ UNVERIFIED |
| DAD a Distribution Dba Boulder Creek Stone Products | Fridley | MN | — | ◇ UNVERIFIED |
| DAD a Distribution INC Dba Condor Fireplace - Stone | Minneapolis | MN | — | ◇ UNVERIFIED |
| DUDaeil USA Corporation | Valley | AL | — | ◇ UNVERIFIED |
