 Cabot Coach Builders, INC. | Haverhill | MA | — | ◇ UNVERIFIED |
| CTCal Truck Equip CO | Downey | CA | — | ◇ UNVERIFIED |
| CMCamaco - Marianna Manufacturing | Marianna | AR | — | ◇ UNVERIFIED |
| CICarco Industries Holding, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| CICarco Industries INC | Tualatin | OR | — | ◇ UNVERIFIED |
| CTCaribbean Truck Bodies & Equipment Corp | Toa Baja | PR | — | ◇ UNVERIFIED |
| CTCarolina Thomas LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| CICarter Industries INC | Adrian | MI | — | ◇ UNVERIFIED |
| CRCase Remanufacturing | San Fernando | CA | — | ◇ UNVERIFIED |
| CRCenterville Radiator | Fremont | CA | — | ◇ UNVERIFIED |
| CEChandler Equipment CO. | Gainesville | GA | — | ◇ UNVERIFIED |
| CFCherokee Freight Lines | Stockton | CA | — | ◇ UNVERIFIED |
| CCChevron Commercial, INC. | Highland | IL | — | ◇ UNVERIFIED |
| CHC & H Motor Parts | Placerville | CA | — | ◇ UNVERIFIED |
| CACisco Air Systems INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| COCity of Miami Garage | Miami | FL | — | ◇ UNVERIFIED |
| CCClassic Coach Corporation | Bells | TN | — | ◇ UNVERIFIED |
| CIClassic Investors INC | Medford | OR | — | ◇ UNVERIFIED |
| CAClean Air Vehicle Test Center | Hayward | CA | — | ◇ UNVERIFIED |
| CPClhc Properties LLC | Roy | UT | — | ◇ UNVERIFIED |
| CCCoastal Coachworks | Fountain Valley | CA | — | ◇ UNVERIFIED |
| CTCobalt Truck Equipment | Las Vegas | NV | — | ◇ UNVERIFIED |
| CVColeman Vacuum Tank Mfg | East Patchogue | NY | — | ◇ UNVERIFIED |
| CMColonial Manufacturing Company | Henderson | KY | — | ◇ UNVERIFIED |
| CIColumbia Industries, INC. | Berwick | PA | — | ◇ UNVERIFIED |
| CSCommercial Specialty Truck Holdings | Cynthiana | KY | — | ◇ UNVERIFIED |
| CMConcrete Motorsports, LLC | Corona | CA | — | ◇ UNVERIFIED |
| CMConsolidated Metco, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| CMContinental Mfg. Company, INC. | Houston | TX | — | ◇ UNVERIFIED |
| CMCooks Manufacturing INC | Roseville | CA | — | ◇ UNVERIFIED |
| CRCordele Refurbishment and Manufacturing | Cordele | GA | — | ◇ UNVERIFIED |
| CICorvette Image Incorporated | Gresham | OR | — | ◇ UNVERIFIED |
| COCounty of San Luis Obispo Fleet Services | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| CFCrimson Fire Aerials, INC | Ephrata | PA | — | ◇ UNVERIFIED |
| CTCsmc Tructing Repair | Mcpherson | KS | — | ◇ UNVERIFIED |
| CCCt Coachworks LLC | Riverside | CA | — | ◇ UNVERIFIED |
| CICtr INC | White Pigeon | MI | — | ◇ UNVERIFIED |
| CACummins America INC | Orange | TX | — | ◇ UNVERIFIED |
| CTCurtis Tractor Cab, INC. | Worcester | MA | — | ◇ UNVERIFIED |
| CTCustomized Transportation INC | Edgerton | WI | — | ◇ UNVERIFIED |
| CTCustom Truck One Source | Fort Worth | TX | — | ◇ UNVERIFIED |
| DTDaimler Trucks North America LLC | Portland | OR | — | ◇ UNVERIFIED |
| DCDana Corporation, Parish Div. | Stockton | CA | — | ◇ UNVERIFIED |
| DODaniel O Davis INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| DMDavid Mcdowell | Los Gatos | CA | — | ◇ UNVERIFIED |
| DIDavis Import and Domestic Auto Service | Davis | CA | — | ◇ UNVERIFIED |
| DWDba Weld-it CO. | Commerce | CA | — | ◇ UNVERIFIED |
 Deep South Fire Trucks Inc | Collins | MS | — | ◇ UNVERIFIED |
| DIDeflex Innovations INC. | Berlin | NH | — | ◇ UNVERIFIED |
| DUDesignline Usa, LLC | Charlotte | NC | — | ◇ UNVERIFIED |
