| CRChris Reeve Knives | Boise | ID | — | ◇ UNVERIFIED |
| CCChristopher C. Burton | Mentor | OH | — | ◇ UNVERIFIED |
| CCChroma Color Corporation | Corona | CA | — | ◇ UNVERIFIED |
| CChromascape | Fleetwood | PA | — | ◇ UNVERIFIED |
| CLChromascape, LLC | Goose Creek | SC | — | ◇ UNVERIFIED |
| CBChurch Brother LLC | Holtville | CA | — | ◇ UNVERIFIED |
| CMChurchmen's Machine Company | Wilmington | DE | — | ◇ UNVERIFIED |
| CPCic Precision Machining | Golden | CO | — | ◇ UNVERIFIED |
| CJCig Jan Products LTD | Caledonia | MI | — | ◇ UNVERIFIED |
| CCinao | Moraine | OH | — | ◇ UNVERIFIED |
| CICinex, INC. | Cincinnati | OH | — | ◇ UNVERIFIED |
| CCCircl Cm Holdings, INC. | Gilberts | IL | — | ◇ UNVERIFIED |
| CHCirculus Holdings Pbllc | Riverbank | CA | — | ◇ UNVERIFIED |
| CPCirello Property LLC | Mineral Wells | TX | — | ◇ UNVERIFIED |
| CECirrus Enterprises Dba E.v. Roberts | Culver City | CA | — | ◇ UNVERIFIED |
| CPCitadel Plastics | Perrysburg | OH | — | ◇ UNVERIFIED |
| CACity and County of San Francisco, Sfpuc | San Francisco | CA | — | ◇ UNVERIFIED |
| COCity of Beverly Hills | Beverly Hills | CA | — | ◇ UNVERIFIED |
| COCity of Santa Monica | Santa Monica | CA | — | ◇ UNVERIFIED |
| COCity of Victorville | Adelanto | CA | — | ◇ UNVERIFIED |
| CJC J Fiberglass CO | Long Beach | CA | — | ◇ UNVERIFIED |
 C&J Industries Inc. | Kent | WA | — | ◇ UNVERIFIED |
| CJC & J Machine & Tool Company | Monett | MO | — | ◇ UNVERIFIED |
| CPCj Products, INC. | Weston | WV | — | ◇ UNVERIFIED |
| CMCkc Manufacturing INC | River Falls | WI | — | ◇ UNVERIFIED |
| CIClapac INC Dba Classic Precision | Wixom | MI | — | ◇ UNVERIFIED |
| CRClarence Resins and Chemicals | Williamsville | NY | — | ◇ UNVERIFIED |
| CDClariant-masterbatches Div | Mchenry | IL | — | ◇ UNVERIFIED |
| COClariant of Maine | Lewiston | ME | — | ◇ UNVERIFIED |
| CPClariant Plastics & Coating USA INC Chino | Chino | CA | — | ◇ UNVERIFIED |
| CFClark Foam Prod Gordon Clark | Laguna Niguel | CA | — | ◇ UNVERIFIED |
| CAClass Act Machined Products INC | Creswell | OR | — | ◇ UNVERIFIED |
| CDClassic Dyestuffs, INC. - Lenoir Facility | Lenoir | NC | — | ◇ UNVERIFIED |
| CMClassic Machine INC | Osseo | MN | — | ◇ UNVERIFIED |
| CIClausen Industries INC | Eugene | OR | — | ◇ UNVERIFIED |
| CWClean Water Opportunities, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| CCClear Creek Industries INC | Saint Marys | PA | — | ◇ UNVERIFIED |
| CIClearmotion INC | Billerica | MA | — | ◇ UNVERIFIED |
| CMCline Machine, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| CAClint and Brenda Grassel, LLC | Liberty Lake | WA | — | ◇ UNVERIFIED |
| CIClinton Industries INC | Elizabethtown | KY | — | ◇ UNVERIFIED |
| CLC L Machine, LLC | Joplin | MO | — | ◇ UNVERIFIED |
| CMCloud Machine Tool & Fabrication INC | Humboldt | TN | — | ◇ UNVERIFIED |
| CMClouse Machine Shop | Saint Joseph | KY | — | ◇ UNVERIFIED |
| CPClover Plastics LLC | West Chicago | IL | — | ◇ UNVERIFIED |
| CRCm Routing LLC | Racine | WI | — | ◇ UNVERIFIED |
| CMCmt Machining and Fabricating, LLC | Urbana | OH | — | ◇ UNVERIFIED |
| CICnc Industries INC. | Fairmont | WV | — | ◇ UNVERIFIED |
| CICNC Innovations Inc | Somersworth | NH | — | ◇ UNVERIFIED |
| CICnc Innovations INC | Saint Paul | MN | — | ◇ UNVERIFIED |
 Cnc Machine and Fabrication, INC. | North Logan | UT | — | ◇ UNVERIFIED |
| COCNC Offroad LLC | Kenosha | WI | — | ◇ UNVERIFIED |
| CPCnc Precision Manufacturing INC | Sherwood | OR | — | ◇ UNVERIFIED |
| CSCnc Swiss INC. | Addison | IL | — | ◇ UNVERIFIED |
| CTCoach Tool & Die, INC. | Dayton | OH | — | ◇ UNVERIFIED |
| CBCoastal Bend Staffing, LLC | Lolita | TX | — | ◇ UNVERIFIED |
| CCCoastal Casting Service INC. | Houston | TX | — | ◇ UNVERIFIED |
| CSCoastal Sunbelt Associates, Incorporated | Savannah | GA | — | ◇ UNVERIFIED |
| CTCobak Tool & Manufacturing CO | Saint Louis | MO | — | ◇ UNVERIFIED |
 Cobalt Enterprises, L.L.C. | Granite Falls | WA | — | ◇ UNVERIFIED |
| CWCode Welding & Mfg INC | Blaine | MN | — | ◇ UNVERIFIED |
| CCCoffman Custom Machine LLC | Grain Valley | MO | — | ◇ UNVERIFIED |
| CTCohone Technologies Sales & Service, LLC | Gilbert | AZ | — | ◇ UNVERIFIED |
| CCCole CNC LLC | Fort Morgan | CO | — | ◇ UNVERIFIED |
| CMColeman Machine | Menominee | MI | — | ◇ UNVERIFIED |
| CMColeman Machine INC | Menominee | MI | — | ◇ UNVERIFIED |
| CTColeman Tool & Mfg CORP | Union Grove | WI | — | ◇ UNVERIFIED |
| CMCollier Machine and Fabrication, INC. | Prattville | AL | — | ◇ UNVERIFIED |
| CCCollimated Cuts LLC | Brillion | WI | — | ◇ UNVERIFIED |
| CCCollins CORP. | Longview | TX | — | ◇ UNVERIFIED |
| CRColorado Rubber and Supply | Denver | CO | — | ◇ UNVERIFIED |
| CBColumbia Basin Machine Company | Moses Lake | WA | — | ◇ UNVERIFIED |
| CCColumbia Chutes, LLC | Wheeling | IL | — | ◇ UNVERIFIED |
| CPColumbia Precision Machine CORP | Burnsville | MN | — | ◇ UNVERIFIED |
| CTColumbia Tool and Gage Company | Wheeling | IL | — | ◇ UNVERIFIED |
| CMColumbus Machine Works | Columbus | OH | — | ◇ UNVERIFIED |
| CMComex Metal Components LLC | Mundelein | IL | — | ◇ UNVERIFIED |
| CMCommander Machining Company, LLC | Springfield | IL | — | ◇ UNVERIFIED |
| CSCommerce SG LTD. | Sidney | OH | — | ◇ UNVERIFIED |
| CMCommercial Machine Service INC | Cleveland | OH | — | ◇ UNVERIFIED |
 Commercial Welding and Machining, Inc. | Clear Lake | MN | — | ◇ UNVERIFIED |
| CMCommonwealth Machine CO. | Danville | VA | — | ◇ UNVERIFIED |
| CMCompatible Manufacturing, INC. | Kalispell | MT | — | ◇ UNVERIFIED |
| CAComplex Aerospace, LLC | Auburn | WA | — | ◇ UNVERIFIED |
| CSComposite Solutions CORP Sumner | Sumner | WA | — | ◇ UNVERIFIED |
| CPComtech Precision Machine, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| CConcept1 | North Tonawanda | NY | — | ◇ UNVERIFIED |
| CMConcept Machine & Tool, INC. | Covington | OH | — | ◇ UNVERIFIED |
| CMConcept Manufacturing CO | Holliston | MA | — | ◇ UNVERIFIED |
| CMCondor Manufacturing | Murray | UT | — | ◇ UNVERIFIED |
| CPConductive Plastics Consultants | Media | PA | — | ◇ UNVERIFIED |
| CLConectacts LLC | San Bernardino | CA | — | ◇ UNVERIFIED |
| CIConex Industrial Supply | Fort Worth | TX | — | ◇ UNVERIFIED |
| CGConner Gibbens | Deepwater | MO | — | ◇ UNVERIFIED |
| CIConquest Industries INC. | Stow | OH | — | ◇ UNVERIFIED |
 Consolidated Machine LLC | Neenah | WI | — | ◇ UNVERIFIED |
| CMConsolidated Metco, INC. | Vancouver | WA | — | ◇ UNVERIFIED |
| CCContemporary Carbide Technologies, INC. | Deland | FL | — | ◇ UNVERIFIED |
 Contemporary Design Plastics | Arlington | TX | — | ◇ UNVERIFIED |
| CSContinenental Structural Plastics, INC. | Van Wert | OH | — | ◇ UNVERIFIED |
