| CCColorshine Collision Center LLC | Pacoima | CA | — | ◇ UNVERIFIED |
| CGColumbus Gasket LLC | Columbus | OH | — | ◇ UNVERIFIED |
| CComdaco | Excelsior Springs | MO | — | ◇ UNVERIFIED |
| CICommander Innovations, Inc. | Holly | MI | — | ◇ UNVERIFIED |
| CSCommerce Square, Inc. | Hamilton | OH | — | ◇ UNVERIFIED |
| CACommercial Aircraft | Wichita | KS | — | ◇ UNVERIFIED |
| CCComplete Custom Wheel, INC. | Holly Hill | FL | — | ◇ UNVERIFIED |
| COComponent Operations Boeing Jacksonville | Jacksonville | FL | — | ◇ UNVERIFIED |
| CCompositec | Mission Viejo | CA | — | ◇ UNVERIFIED |
| CEComposite Engineering INC | Mcclellan | CA | — | ◇ UNVERIFIED |
| CEComposite Engineering LLC (1413010484) | Amelia | OH | — | ◇ UNVERIFIED |
 Composites Horizons INC | Covina | CA | — | ◇ UNVERIFIED |
| CTCom Tac Unlimited, INC. | Augusta | GA | — | ◇ UNVERIFIED |
| CWConatser Welding and Machine, LLC | King City | CA | — | ◇ UNVERIFIED |
| CConbraco:conway | Conway | SC | — | ◇ UNVERIFIED |
| CMConcentris Manufacturing Solutions, INC. | Westborough | MA | — | ◇ UNVERIFIED |
| CECone Engineering, Inc. | Los Alamitos | CA | — | ◇ UNVERIFIED |
| CAConfer Automotive | Ben Lomond | CA | — | ◇ UNVERIFIED |
| CRConstructors Racing Group, LLC | San Francisco | CA | — | ◇ UNVERIFIED |
| CMContinental Mfg. Company, INC. | Houston | TX | — | ◇ UNVERIFIED |
| CACooper-standard Automotive of Fairview | Fairview | MI | — | ◇ UNVERIFIED |
| CACornwell Aerospace Services, LLC | Saint Peters | MO | — | ◇ UNVERIFIED |
| CLCorral-130 LLC | Compton | CA | — | ◇ UNVERIFIED |
| CVCorsa Velocita Group LLC. | North Hollywood | CA | — | ◇ UNVERIFIED |
| CWCosmo Wheels INC | Winchester | KY | — | ◇ UNVERIFIED |
| CACox Airparts, LLC | Wichita | KS | — | ◇ UNVERIFIED |
 Cpk Manufacturing INC | San Jose | CA | — | ◇ UNVERIFIED |
| CSCrankshaft Supply CO INC. | Minneapolis | MN | — | ◇ UNVERIFIED |
| CFCrescent Forge & Shovel Co-div of Eric | Havana | IL | — | ◇ UNVERIFIED |
| CLCromCo, LLC | Cypress | CA | — | ◇ UNVERIFIED |
| CHCrow Hopper Holdings LLC | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CSC & S Commercial Truck and Van Equipment | Palatka | FL | — | ◇ UNVERIFIED |
| CACtw Automation, INC. | Lexington | NC | — | ◇ UNVERIFIED |
| CCCuesta College (generator) | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| CECummins Electrified Power | West Sacramento | CA | — | ◇ UNVERIFIED |
| CECummins Electrified Power | Dixon | CA | — | ◇ UNVERIFIED |
| CECummins Emission Solutions | Stoughton | WI | — | ◇ UNVERIFIED |
| CICummins, INC. | Columbus | IN | — | ◇ UNVERIFIED |
| CGCurt Group | Allentown | PA | — | ◇ UNVERIFIED |
| CCCurtiss-wright Controls Integrated | City of Industry | CA | — | ◇ UNVERIFIED |
| CCCurvilinear Components LLC | San Clemente | CA | — | ◇ UNVERIFIED |
| CACustom Aircraft Cabinets, INC. | North Little Rock | AR | — | ◇ UNVERIFIED |
| CMCustomized Manufacturing and Assembly INC | Rochester Hills | MI | — | ◇ UNVERIFIED |
| CTCustom Tranz INC Dba Valve Body Pro | San Jose | CA | — | ◇ UNVERIFIED |
| CMC&w Manufacturing Dba C&w Machine Shop | Turlock | CA | — | ◇ UNVERIFIED |
| CHCylinder Head Engineering LLC | De Soto | KS | — | ◇ UNVERIFIED |
| DSDaa Seattle | Auburn | WA | — | ◇ UNVERIFIED |
| DHD.A.C. Holding Ltd. | Brighton | MI | — | ◇ UNVERIFIED |
| DADaher Aerospace | Stuart | FL | — | ◇ UNVERIFIED |
| DUDaikyonishikawa U.s.a., INC. | Madison | AL | — | ◇ UNVERIFIED |
