| CHCapital Heights Iron Works, LLC | Capitol Heights | MD | — | ◇ UNVERIFIED |
| CMCapital Metal Works LLC | Sacramento | CA | — | ◇ UNVERIFIED |
| CSCapital Steel Products | Ontario | CA | — | ◇ UNVERIFIED |
| CSCapitol Steel Products | Bakersfield | CA | — | ◇ UNVERIFIED |
| CSCapitol Steel Products a Division of Security | Sacramento | CA | — | ◇ UNVERIFIED |
| CCCapps Commercial Properties, LLC | Clackamas | OR | — | ◇ UNVERIFIED |
| CCaptiveaire | Redding | CA | — | ◇ UNVERIFIED |
| CCaptiveaire | Englewood | OH | — | ◇ UNVERIFIED |
| C3Captiveaire 360 Youngsville Addition | Youngsville | NC | — | ◇ UNVERIFIED |
| CBCaptiveaire Building 2 | Bedford | PA | — | ◇ UNVERIFIED |
| CCCarbide Cutting Tools SC, Inc. | Taylors | SC | — | ◇ UNVERIFIED |
| CPCarboline Premium Cutting Tools, INC | Pearland | TX | — | ◇ UNVERIFIED |
| CSCardinal Sheet Metal INC | Riverside | CA | — | ◇ UNVERIFIED |
| CICarfaro, INC. | Trenton | NJ | — | ◇ UNVERIFIED |
| CFCarl Fisher Co., INC. | Springfield | MA | — | ◇ UNVERIFIED |
| CUCarlos Undercoating Sandblast | Seatac | WA | — | ◇ UNVERIFIED |
| CICarlson Industries INC | Forest Lake | MN | — | ◇ UNVERIFIED |
 Carlson Tool & Manufacturing CORP. | Mequon | WI | — | ◇ UNVERIFIED |
| CLCarolina Laser Cutting, INC. | Greensboro | NC | — | ◇ UNVERIFIED |
| CRCarpenter's Roofing & Sheet Metal, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| CCCarson City Plant #1 | Carson City | NV | — | ◇ UNVERIFIED |
| CCCarson City Plant #2 | Carson City | NV | — | ◇ UNVERIFIED |
| CICartel Industries LLC | Irvine | CA | — | ◇ UNVERIFIED |
| C2Carter 2 Systems INC | Hillsboro | OR | — | ◇ UNVERIFIED |
| CLCartrust, LLC | Tampa | FL | — | ◇ UNVERIFIED |
| CWCart Works Company, INC. | Denver | CO | — | ◇ UNVERIFIED |
| CSCarver Sheet Metal Works, Inc. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| CCCascade Coil Drapery INC | Tualatin | OR | — | ◇ UNVERIFIED |
| CICastle Industries INC. of Ca. | Ontario | CA | — | ◇ UNVERIFIED |
| CTCasward Tool Works | Chicago | IL | — | ◇ UNVERIFIED |
| CDCaswell Design Build Corporation | Emeryville | CA | — | ◇ UNVERIFIED |
| CICavotec Inet US INC. | Cypress | CA | — | ◇ UNVERIFIED |
| CSCb Strain & Son INC. | Tarrytown | NY | — | ◇ UNVERIFIED |
| CFC&c Fabrication, INC. | Carrollton | GA | — | ◇ UNVERIFIED |
| CCC & C Manufacturing CORP. | Englewood | CO | — | ◇ UNVERIFIED |
| CDC & D Manufacturing LLC | Lexington | KY | — | ◇ UNVERIFIED |
| CDC & D Metal Products, INC. | Thornton | CO | — | ◇ UNVERIFIED |
| CSCdr Strainers & Filters INC | Brookshire | TX | — | ◇ UNVERIFIED |
| CECedar Enterprises INC | Bristol | TN | — | ◇ UNVERIFIED |
| CRCedar Rock Holdings, LLC | Lenoir | NC | — | ◇ UNVERIFIED |
| CHCedars Holding CORP INC | Thief River Falls | MN | — | ◇ UNVERIFIED |
| CWCedar Welding and Fabrication INC. | Cedar City | UT | — | ◇ UNVERIFIED |
| CMCeit Mfg INC | Granite Falls | MN | — | ◇ UNVERIFIED |
| CCCelestica Corporation | Rochester | MN | — | ◇ UNVERIFIED |
| CICelestica INC. Dba D & H Mfg. CO. | Fremont | CA | — | ◇ UNVERIFIED |
| CICentek INC / Centek Facility | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CDCenterline Design & Fabrication Incorporated | South Milwaukee | WI | — | ◇ UNVERIFIED |
| CPCenterline Prefab LLC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| CTCenterline Tool & Engineering, INC. | Bradenton | FL | — | ◇ UNVERIFIED |
| CMCenter Mfg Plt 5 | Wayland | MI | — | ◇ UNVERIFIED |
| CSCenter Sheet Metal, INC. | Brooklyn | NY | — | ◇ UNVERIFIED |
| CMCenterville Manufacturing LLC | Centerville | SD | — | ◇ UNVERIFIED |
| CCCentral Cal Metals | Fresno | CA | — | ◇ UNVERIFIED |
| CCCentral Coast Designs, Inc. | Hillsdale | MI | — | ◇ UNVERIFIED |
| CFCentral Florida Metals AND Central FL Metals, LLC | Orlando | FL | — | ◇ UNVERIFIED |
| CKCentral Kentucky Industrial INC | Richmond | KY | — | ◇ UNVERIFIED |
| COCentral Ohio Sheet Metal Company | Reynoldsburg | OH | — | ◇ UNVERIFIED |
| CSCentral Sheet Metal, LLC | Seminole | OK | — | ◇ UNVERIFIED |
| CSCentral Sheet Metal, LLC | Wichita Falls | TX | — | ◇ UNVERIFIED |
| CSCentral Sheet Metal Products, INC. | Skokie | IL | — | ◇ UNVERIFIED |
| CSCentral States Manufacturing, INC. | Hartford | SD | — | ◇ UNVERIFIED |
| CWCentral Wisconsin Flex | Weston | WI | — | ◇ UNVERIFIED |
| CMCentra Metal LLC | Osage Beach | MO | — | ◇ UNVERIFIED |
| CCCentury Corrosion Technologies | Houston | TX | — | ◇ UNVERIFIED |
| CICentury Instrument & Machine Co., INC. | Houston | TX | — | ◇ UNVERIFIED |
| CICentury Iron Craft, INC | Baldwin Park | CA | — | ◇ UNVERIFIED |
| CMCentury Mfg Industries, INC. | Las Vegas | NV | — | ◇ UNVERIFIED |
| CSCertified Stainless Service Dba Westmark | Atwater | CA | — | ◇ UNVERIFIED |
| CICew INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| CMCfc Manufacturing Co., INC. | Carbondale | PA | — | ◇ UNVERIFIED |
| CWCfc Wire Forms, INC | Batavia | IL | — | ◇ UNVERIFIED |
| CHCfm Heating & Air Conditioning INC | Ogden | UT | — | ◇ UNVERIFIED |
| CGC G Systems INC | Lake Forest | CA | — | ◇ UNVERIFIED |
| CMChadwick Manufacturing, LTD. | Chadwick | IL | — | ◇ UNVERIFIED |
| CMChallenge Machine and Fabrication, INC. | Humble | TX | — | ◇ UNVERIFIED |
| CTChamco Tools | Kansas City | MO | — | ◇ UNVERIFIED |
| CSChampion Safe CO. INC. | Provo | UT | — | ◇ UNVERIFIED |
| CTChampion Tool Storage | Hood River | OR | — | ◇ UNVERIFIED |
 Chancey Metals LLC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| Chancey Metals Ramonda Blvd Facility | Jacksonville | FL | — | ◇ UNVERIFIED |
 Chandler Industries, INC. | Littleton | CO | — | ◇ UNVERIFIED |
| Chandler Industries INC Stremel Division | Minneapolis | MN | — | ◇ UNVERIFIED |
| CMChannel Manufacturing INC. | Port Washington | NY | — | ◇ UNVERIFIED |
| CHChanning Hammond | Goleta | CA | — | ◇ UNVERIFIED |
| CFCharter Foundry CO INC | Huntington Park | CA | — | ◇ UNVERIFIED |
| CChassix | Port Huron | MI | — | ◇ UNVERIFIED |
| CPChatsworth Products INC | Chatsworth | CA | — | ◇ UNVERIFIED |
| CMChattanooga Machine & Fabricators, INC. | Hixson | TN | — | ◇ UNVERIFIED |
| CPCHDR Properties, LLC | Winfield | MO | — | ◇ UNVERIFIED |
| CWCheckpoint Welding - Fabrication INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| CDChemistry Design Werks LLC | St Paul | MN | — | ◇ UNVERIFIED |
| CWChenoa Welding & Fabrication, INC. | Chenoa | IL | — | ◇ UNVERIFIED |
 Cherokee Nation Red Wing, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| CBChicago Blow Pipe Company | Marquette | MI | — | ◇ UNVERIFIED |
| CIChico Ironworks INC | Chico | CA | — | ◇ UNVERIFIED |
| CUChico Unified School District | Chico | CA | — | ◇ UNVERIFIED |
| CMChi Manufacturing, INC. | Englewood | CO | — | ◇ UNVERIFIED |
| CTChisholm Trail Metal Works, LLC | Ninnekah | OK | — | ◇ UNVERIFIED |
| CSChoctaw Soldiers Industries, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| CFChris French Metal INC | Oakland | CA | — | ◇ UNVERIFIED |
