| CCaptiveaire | Muskogee | OK | — | ◇ UNVERIFIED |
| CCaptiveaire | Bedford | PA | — | ◇ UNVERIFIED |
| CICarboloy INC | Warren | MI | — | ◇ UNVERIFIED |
| CICardinal Ig Site | Spring Green | WI | — | ◇ UNVERIFIED |
| CRCardinal Rotar | Spring Green | WI | — | ◇ UNVERIFIED |
| CMCardwell Machine Company | Richmond | VA | — | ◇ UNVERIFIED |
| CGCaribe Ge International of Pr INC | Anasco | PR | — | ◇ UNVERIFIED |
| CGCaribe Ge Pilot | Vega Alta | PR | — | ◇ UNVERIFIED |
| CTCarlisle Tire & Wheel | Slinger | WI | — | ◇ UNVERIFIED |
| CPCarlsen Precision Manufacturing | Rome | GA | — | ◇ UNVERIFIED |
| CBCarlson & Beauloye Machine Shop INC | San Diego | CA | — | ◇ UNVERIFIED |
| CCCarolina Chemical Strip of Alamance Incorporated | Burlington | NC | — | ◇ UNVERIFIED |
| CFCarolina Finishing, INC. | Mocksville | NC | — | ◇ UNVERIFIED |
| CPCarpenter & Paterson INC | Saddle Brook Twp | NJ | — | ◇ UNVERIFIED |
| CCCarrier Corporation Bdp Compan | Rowland Heights | CA | — | ◇ UNVERIFIED |
| CSCarter Spray Finishing | Brooklyn | NY | — | ◇ UNVERIFIED |
| CICartwright Industries, Inc, (d.b.a. D&b Custom Powder Coating & Hydrographics, I | Trenton | GA | — | ◇ UNVERIFIED |
| CMCascade Metallurgical INC | Kent | WA | — | ◇ UNVERIFIED |
| CPCascade Plating and Machine | Eugene | OR | — | ◇ UNVERIFIED |
| CCCase CORP | East Moline | IL | — | ◇ UNVERIFIED |
| CSCashs Scrap Metal & Iron | Saint Louis | MO | — | ◇ UNVERIFIED |
| CCCast Coatings INC. | Stevensville | MI | — | ◇ UNVERIFIED |
| CICasting Impregnators INC | Franklin Park | IL | — | ◇ UNVERIFIED |
| CPCasual Patio | Clearwater | FL | — | ◇ UNVERIFIED |
| CCCatalytic Combustion | Bloomer | WI | — | ◇ UNVERIFIED |
| CSCatalytic Solutions, INC. | Oxnard | CA | — | ◇ UNVERIFIED |
| CECaterpillar Emissions Solutions INC | Santa Fe | NM | — | ◇ UNVERIFIED |
| CICaterpillar, INC. | Thomasville | GA | — | ◇ UNVERIFIED |
 C & a Tool Engineering INC. | Churubusco | IN | — | ◇ UNVERIFIED |
| CFCb Finishing | Seattle | WA | — | ◇ UNVERIFIED |
| CSCbi Services INC | Bourbonnais | IL | — | ◇ UNVERIFIED |
| CWCb&i Water/warren Facility | Warren | PA | — | ◇ UNVERIFIED |
| CBC & B Piping,inc. Adamsville | Adamsville | AL | — | ◇ UNVERIFIED |
| CMC-brite Metal Finishing INC | Harbor City | CA | — | ◇ UNVERIFIED |
| CCC & C Coating | Kings Mountain | NC | — | ◇ UNVERIFIED |
| CMC&c Machining INC | Centerville | IA | — | ◇ UNVERIFIED |
| CCC & C Rhode Island | Providence | RI | — | ◇ UNVERIFIED |
| CICdex Inc-cdex INC | Pacific | MO | — | ◇ UNVERIFIED |
| CDC & D Precision Compents INC | Pasadena | CA | — | ◇ UNVERIFIED |
| CDC & D Welding & Fabrication INC | Jonesville | MI | — | ◇ UNVERIFIED |
| CMCeh Metal Technologies Longmont Division | Longmont | CO | — | ◇ UNVERIFIED |
| CLCelco LLC (stormwater) | Anthony | KS | — | ◇ UNVERIFIED |
| CPCemco Products Site | Everett | WA | — | ◇ UNVERIFIED |
| CCCemline CORP | Cheswick | PA | — | ◇ UNVERIFIED |
| COCenla Oilfield Fabricators LLC | Bunkie | LA | — | ◇ UNVERIFIED |
| CICentek INC | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CTCentennial Technologies INC | Saginaw | MI | — | ◇ UNVERIFIED |
| CRCenterless Rebuilders INC | New Haven | MI | — | ◇ UNVERIFIED |
| CMCenter Manufacturing Company | Bellevue | OH | — | ◇ UNVERIFIED |
| CECentral Electric Company LLC | Fulton | MO | — | ◇ UNVERIFIED |
| CFCentral Florida Plating INC | Merritt Island | FL | — | ◇ UNVERIFIED |
| CHCentral Hydraulics INC | East Freedom | PA | — | ◇ UNVERIFIED |
| CLCentral Livestock Equipment | Hutchinson | KS | — | ◇ UNVERIFIED |
| CMCentral Metal Finishing INC | Windham | NH | — | ◇ UNVERIFIED |
| CMCentral Moloney, LLC - Tooling Plant | Redfield | AR | — | ◇ UNVERIFIED |
| CPCentury Parts INC | Torrance | CA | — | ◇ UNVERIFIED |
| CTCentury Ty-wood Manufacturing INC | Holliston | MA | — | ◇ UNVERIFIED |
| CTCeramic Technology | Cedar Bluff | VA | — | ◇ UNVERIFIED |
| CUCeratizit Usa, INC. | Warren | MI | — | ◇ UNVERIFIED |
| CUCeratizit Usa/latrobe Plt | Latrobe | PA | — | ◇ UNVERIFIED |
| CECertified Equip & Mfg CO | Springfield | IL | — | ◇ UNVERIFIED |
| CFCertified Fabricators INC | Buena Park | CA | — | ◇ UNVERIFIED |
| CFCertified Factory Wheel | Madison Heights | MI | — | ◇ UNVERIFIED |
| CMCertified Metal Craft | El Cajon | CA | — | ◇ UNVERIFIED |
| CRCff Recycling USA / 100 N Bath | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CRCf Rail Services LLC | East Chicago | IN | — | ◇ UNVERIFIED |
| CMChallenge Mfg-3 Mile | Walker | MI | — | ◇ UNVERIFIED |
| CMChallenge Mfg-fruitridge | Walker | MI | — | ◇ UNVERIFIED |
| CMChampagne Metals | South Charleston | WV | — | ◇ UNVERIFIED |
| CMChancey Metal Products, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
 Chancey Metals LLC Annex | Jacksonville | FL | — | ◇ UNVERIFIED |
| CGCharles Gabus Motors, Inc., Dba Toyota of Des Moines | Grimes | IA | — | ◇ UNVERIFIED |
| CSCharleston Steel & Metal CO | Charleston | SC | — | ◇ UNVERIFIED |
| CPCharlotte Plating, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| CIChart INC Denver | Denver | CO | — | ◇ UNVERIFIED |
| CIChart Industries | Plaistow | NH | — | ◇ UNVERIFIED |
| CSChart Storage Systems - Denver, INC | Denver | CO | — | ◇ UNVERIFIED |
| CSChart Storage Systems - Denver, INC | Denver | CO | — | ◇ UNVERIFIED |
| CPChattanooga Plating & Machine, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| CECheek Engineering | Irvine | CA | — | ◇ UNVERIFIED |
| CRChemetron Railway Products | Pueblo | CO | — | ◇ UNVERIFIED |
| CRChemetron Railway Products Inc-true-temper Plant | Kansas City | MO | — | ◇ UNVERIFIED |
| CPChemical Processing INC | Detroit | MI | — | ◇ UNVERIFIED |
| CCChemithon CORP | Seattle | WA | — | ◇ UNVERIFIED |
| CIChem-plate Industries INC | Maywood | IL | — | ◇ UNVERIFIED |
 Chem Processing | Rockford | IL | — | ◇ UNVERIFIED |
| CPChem-tek Plating Industries | Melbourne | FL | — | ◇ UNVERIFIED |
| CVChem Valley Machine | Nitro | WV | — | ◇ UNVERIFIED |
| CFChicago Faucet CO | Des Plaines | IL | — | ◇ UNVERIFIED |
| CHChicago Heights Railcar INC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| CPChicago Plating INC | Chicago | IL | — | ◇ UNVERIFIED |
| CSChicago Steel Rule Die & Fabricators CO | Chicago | IL | — | ◇ UNVERIFIED |
 Chief Industries INC Chief Transportation Products | Omaha | NE | — | ◇ UNVERIFIED |
| CPChilton Plating | Chilton | WI | — | ◇ UNVERIFIED |
| CVChino Valley Site | Chino Valley | AZ | — | ◇ UNVERIFIED |
| CLChiptec, LLC | Decatur | AL | — | ◇ UNVERIFIED |
| CMChoctaw Mfg and Dev CORP / Choctaw Metal and Goods Mfg Faclty | Hugo | OK | — | ◇ UNVERIFIED |
| CGChore-time Group | Milford | IN | — | ◇ UNVERIFIED |
| CIChor Industries INC | Troy | MI | — | ◇ UNVERIFIED |
| CChromalloy | Middletown | NY | — | ◇ UNVERIFIED |
