| CJC & J Machine & Tool Company | Monett | MO | — | ◇ UNVERIFIED |
| CPCj Products, INC. | Weston | WV | — | ◇ UNVERIFIED |
| CMCkc Manufacturing INC | River Falls | WI | — | ◇ UNVERIFIED |
| CPClamp-swing Pricing CO INC | Oakland | CA | — | ◇ UNVERIFIED |
| CIClapac INC Dba Classic Precision | Wixom | MI | — | ◇ UNVERIFIED |
| CAClass Act Machined Products INC | Creswell | OR | — | ◇ UNVERIFIED |
| CMClassic Machine INC | Osseo | MN | — | ◇ UNVERIFIED |
| CIClausen Industries INC | Eugene | OR | — | ◇ UNVERIFIED |
| CCClear Creek Industries INC | Saint Marys | PA | — | ◇ UNVERIFIED |
| CMClearfield Mach Co/3rd & Everett Streets | Clearfield | PA | — | ◇ UNVERIFIED |
| CIClearmotion INC | Billerica | MA | — | ◇ UNVERIFIED |
| CRClinch River Casting INC. | Caryville | TN | — | ◇ 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 |
| CFCmi Frank S Ryan Memorial | Des Plaines | 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 |
| 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 |
| CWColorado Water Jet Company | Berthoud | 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 |
| CSColumbus Steel Castings | Columbus | OH | — | ◇ UNVERIFIED |
| CSCometal Steel INC. | Miami | FL | — | ◇ UNVERIFIED |
| CMComex Metal Components LLC | Mundelein | IL | — | ◇ UNVERIFIED |
| CMCommander Machining Company, LLC | Springfield | IL | — | ◇ UNVERIFIED |
| CSCommerce SG LTD. | Sidney | OH | — | ◇ UNVERIFIED |
| CECommercial Enameling CO | Huntington Park | CA | — | ◇ 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 |
| CMCompeer Metals, INC. | Algonquin | IL | — | ◇ UNVERIFIED |
| CAComplex Aerospace, LLC | Auburn | WA | — | ◇ UNVERIFIED |
| CECompton Enterprises | Chico | CA | — | ◇ 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 |
| 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 |
| CPContinental Precision Machine | Santa Clara | CA | — | ◇ UNVERIFIED |
| CMContract Machining & Manufacturing INC | Joplin | MO | — | ◇ UNVERIFIED |
| CPControl Point INC. | Charleston | WV | — | ◇ UNVERIFIED |
| CIConverse Inds | Kenosha | WI | — | ◇ UNVERIFIED |
| CICooper Ind/corry Plt | Corry | PA | — | ◇ UNVERIFIED |
| CTCooper Tool & Machine Supply Company, INC. | Oxford | AL | — | ◇ UNVERIFIED |
| CMCopeland Machine Shop, INC. | Demopolis | AL | — | ◇ UNVERIFIED |
| CMCopeland Manufacturing Corporation | Tulsa | OK | — | ◇ UNVERIFIED |
| CSCopeland Supply Company, LLC | Fruita | CO | — | ◇ UNVERIFIED |
| CICopper Industrial LLC | Stockbridge | MI | — | ◇ UNVERIFIED |
| CMCorbitt Manufacturing Company | Paragould | AR | — | ◇ UNVERIFIED |
| CICornell Iron Works/mountaintop | Mountain Top | PA | — | ◇ UNVERIFIED |
| CMCornerstone Manufacturing Group LLC | Mentor | OH | — | ◇ UNVERIFIED |
| CMCornerstone Molds & Machining, INC. | Santa Paula | CA | — | ◇ UNVERIFIED |
| CRCornerstone Realty Holdings LLC | Concord Township | OH | — | ◇ UNVERIFIED |
| CMCorning Manufacturing Support | Erwin | NY | — | ◇ UNVERIFIED |
| CMCorporate Machine & Equipment, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| CFCorry Forge Company - West | Corry | PA | — | ◇ UNVERIFIED |
| CRCosmos Rings | Lincoln | CA | — | ◇ UNVERIFIED |
| CMCostello Machine LLC | Chesterfield | MI | — | ◇ UNVERIFIED |
| CFCountryside Fabrication Inc | Grantsburg | WI | — | ◇ UNVERIFIED |
| CMCovenant Machine Company LLC | Newton | NH | — | ◇ UNVERIFIED |
| CMCovington Machine and Welding INC | Preston | MD | — | ◇ UNVERIFIED |
| CMCovlet Machine & Design Inc. | Marysville | WA | — | ◇ UNVERIFIED |
| CBCox Brothers Machining | Jackson | MI | — | ◇ UNVERIFIED |
| CMCox Machine & Fab LLC | Indian Trail | NC | — | ◇ UNVERIFIED |
