| CBC-flex Bearing Company | Frankfort | NY | — | ◇ UNVERIFIED |
| CMCf Machine & Tool, INC. | Jacksonville | FL | — | ◇ UNVERIFIED |
| CGC G Hill - Sons INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| CGChampagne Grinding and Manufacturing, Inc. | Canton | MI | — | ◇ UNVERIFIED |
| CWChamplin Welding | Point Judith | RI | — | ◇ UNVERIFIED |
| CMChamtek Mfg., INC. | Rochester | NY | — | ◇ UNVERIFIED |
| CAChan and Sons LLC | Seattle | WA | — | ◇ UNVERIFIED |
 Chandler Industries - Blaine | Blaine | MN | — | ◇ UNVERIFIED |
| Chandler Industries INC | Montevideo | MN | — | ◇ UNVERIFIED |
| Chandler Industries INC | Bethel | MN | — | ◇ UNVERIFIED |
| Chandler Industries INC Lake Country Division | Long Prairie | MN | — | ◇ UNVERIFIED |
| CMChandler Machine Shop INC | Chandler | MN | — | ◇ UNVERIFIED |
| CCChappell Central Inc- Mfg Division | Willmar | MN | — | ◇ UNVERIFIED |
| CMCharian Machine | Clearwater | FL | — | ◇ UNVERIFIED |
| CBCharles Buckalew | Williamsport | PA | — | ◇ UNVERIFIED |
| CMCharles Machine, INC. | Summerville | PA | — | ◇ UNVERIFIED |
| CNCharlie Nguyen an Individual | San Jose | CA | — | ◇ UNVERIFIED |
| CWCharlie's Welding, INC. | Tiffin | IA | — | ◇ UNVERIFIED |
| CFChase Fabrications LLC | Empire | CO | — | ◇ UNVERIFIED |
| CGChassix Ga Machining | Columbus | GA | — | ◇ UNVERIFIED |
| CPCheetah Precision INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| CWChenoa Welding & Fabrication, INC. | Chenoa | IL | — | ◇ UNVERIFIED |
| CACherokee Architectural Metals | Broken Arrow | OK | — | ◇ UNVERIFIED |
| CWChewelah Welding and Machine I | Chewelah | WA | — | ◇ UNVERIFIED |
| CMChicago Metal Polishing | Chicago | IL | — | ◇ UNVERIFIED |
| CMCHICAGO METAL POLISHING, Inc. | Chicago | IL | — | ◇ UNVERIFIED |
| CMChickasha Manufacturing | Chickasha | OK | — | ◇ UNVERIFIED |
| CIChipmatic, Inc. | Elmore | OH | — | ◇ UNVERIFIED |
 Chism Machine and Gage INC | Walnut Grove | KY | — | ◇ UNVERIFIED |
| CMC&h Machine | San Dimas | CA | — | ◇ UNVERIFIED |
| CPChoice Precision Machine INC. | Whitehall | PA | — | ◇ UNVERIFIED |
| CRChris Reeve Knives | Boise | ID | — | ◇ UNVERIFIED |
| CCChristopher C. Burton | Mentor | OH | — | ◇ UNVERIFIED |
| CBChurch Brother LLC | Holtville | CA | — | ◇ UNVERIFIED |
| CMChurchmen's Machine Company | Wilmington | DE | — | ◇ UNVERIFIED |
| CPCic Precision Machining | Golden | CO | — | ◇ UNVERIFIED |
| CCinao | Moraine | OH | — | ◇ UNVERIFIED |
| CICinex, INC. | Cincinnati | OH | — | ◇ UNVERIFIED |
| CCCircl Cm Holdings, INC. | Gilberts | IL | — | ◇ UNVERIFIED |
| CMCircle M Welding & Fabrication LLC | Eaton | CO | — | ◇ UNVERIFIED |
| CPCirello Property LLC | Mineral Wells | TX | — | ◇ 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 |
| CWCk Welding | Poway | 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 |
| 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 and Welding INC. (dot# 439718) | Amelia Court House | VA | — | ◇ UNVERIFIED |
| CLC L Machine, LLC | Joplin | MO | — | ◇ UNVERIFIED |
| CMCloud Machine Tool & Fabrication INC | Humboldt | TN | — | ◇ UNVERIFIED |
| CMClouse Machine Shop | Saint Joseph | KY | — | ◇ 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 |
| CWCoastal Welding & Fabrication | Warm Springs | 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 |
| CBColumbia Basin Machine Company | Moses Lake | WA | — | ◇ UNVERIFIED |
| CCColumbia Chutes, LLC | Wheeling | IL | — | ◇ UNVERIFIED |
| CPColumbia Precision Machine CORP | Burnsville | MN | — | ◇ UNVERIFIED |
| CPColumbia Psi LLC | Englewood | CO | — | ◇ UNVERIFIED |
| CTColumbia Tool and Gage Company | Wheeling | IL | — | ◇ UNVERIFIED |
| CMColumbus Machine Works | Columbus | OH | — | ◇ UNVERIFIED |
| CIComau INC Warren | Warren | MI | — | ◇ 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 |
| CTComplete Tooling Solutions LLC | Fraser | MI | — | ◇ UNVERIFIED |
| CAComplex Aerospace, LLC | Auburn | WA | — | ◇ UNVERIFIED |
