| CMCasey Machine Company, INC. | Lancaster | NY | — | ◇ UNVERIFIED |
| CQCb Quality Machining - Engineering INC | Buffalo | MN | — | ◇ UNVERIFIED |
| CPCcz Precision Machining, LLC | Seabrook | NH | — | ◇ UNVERIFIED |
| CCCd Custom Enterprises LLC | Newton | KS | — | ◇ UNVERIFIED |
| CMCentral Machine Co., INC. | Quakertown | PA | — | ◇ UNVERIFIED |
| CMCentral Marble Products INC | Rice | MN | — | ◇ UNVERIFIED |
| CACentrifugal Acquisition Corporation, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| CCChappell Central INC | Willmar | MN | — | ◇ UNVERIFIED |
| CSChip Star Technology LLC | Beaverton | OR | — | ◇ UNVERIFIED |
| CTChips Tool Repair INC | Anoka | MN | — | ◇ UNVERIFIED |
| CACinchseal Associates INC. | Pennsauken | NJ | — | ◇ UNVERIFIED |
 Cjk Manufacturing LLC | Rochester | NY | — | ◇ UNVERIFIED |
| CPCj Precision Industires INC | Signal Hill | CA | — | ◇ UNVERIFIED |
| CMClean Machine LLC | West Jordan | UT | — | ◇ UNVERIFIED |
 Cnc Precision Machine INC | Garrettsville | OH | — | ◇ UNVERIFIED |
| CCCogitic Corporation | Colorado Springs | CO | — | ◇ UNVERIFIED |
| CMColonial Mold INC | Clinton Twp | MI | — | ◇ UNVERIFIED |
| CMCommercial Metal Products INC | Springfield | OR | — | ◇ UNVERIFIED |
| CSCommercial Sheet Metal INC Dba Csm Metal | Los Angeles | CA | — | ◇ UNVERIFIED |
| CMConcept Machine - Design INC | Rabbit Hash | KY | — | ◇ UNVERIFIED |
| CMCoweta Machine & Fabrication, INC. | Newnan | GA | — | ◇ UNVERIFIED |
| CICoxreels INC | Tempe | AZ | — | ◇ UNVERIFIED |
| CMCp Metal Crafters, INC. | Grover | NC | — | ◇ UNVERIFIED |
| CDCreative Design & Machining INC. | South Abington Township | PA | — | ◇ UNVERIFIED |
 Creative Machining Technologies, INC. | East Moline | IL | — | ◇ UNVERIFIED |
| CTCriterion Tool & Die, INC. | Brookpark | OH | — | ◇ UNVERIFIED |
| CICrown Industrial Services | Ypsilanti | MI | — | ◇ UNVERIFIED |
| CECs Eng., INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| CBCustom Biogenic Systems INC | Romeo | MI | — | ◇ UNVERIFIED |
| CFCustom Fabricated Metals, LLC | Fontana | CA | — | ◇ UNVERIFIED |
| CMCustom Machine & Tool CO INC | Hanover | MA | — | ◇ UNVERIFIED |
| CMCustom Metal Fab INC | Scappoose | OR | — | ◇ UNVERIFIED |
| CPCustom Polishing INC. | Jackson Center | OH | — | ◇ UNVERIFIED |
| CRCustom Roto Mold INC | Benson | MN | — | ◇ UNVERIFIED |
 Custom Service Plastics, INC. | Lake Geneva | WI | — | ◇ UNVERIFIED |
| CECutting Edge Manufacturing Company, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| DTDagry Tooling INC | Owatonna | MN | — | ◇ UNVERIFIED |
| DMDane Mfg CO INC | Dane | WI | — | ◇ UNVERIFIED |
| DTDas Technologies | Paw Paw | MI | — | ◇ UNVERIFIED |
| DADatum a Industries INC | Maple Plain | MN | — | ◇ UNVERIFIED |
| DRDayton Rogers of South Carolina LLC | Columbia | SC | — | ◇ UNVERIFIED |
| DBD & B Precision Products, INC. | Colorado Springs | CO | — | ◇ UNVERIFIED |
| DIDcg-pmi, INC. | Bethel | CT | — | ◇ UNVERIFIED |
| DAD&d Aerospace Engineering | Garden Grove | CA | — | ◇ UNVERIFIED |
| DIDeburring INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| DSDeep South Machinist, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| DMDeffren Machine Tool Service INC. | Fairfield | OH | — | ◇ UNVERIFIED |
| DIDelta Iron Works INC | Detroit | MI | — | ◇ UNVERIFIED |
| DMDenver Machine Shop, INC. | Henderson | CO | — | ◇ UNVERIFIED |
| DPDewitt Plastics INC | Auburn | NY | — | ◇ UNVERIFIED |
| DMD&g Metal Works, INC | Waterloo | IA | — | ◇ UNVERIFIED |
| DLDiamond Lake Tool INC | Elk River | MN | — | ◇ UNVERIFIED |
| DTDiverse Tooling, INC. | Plymouth | WI | — | ◇ UNVERIFIED |
| DMDiversified Machine INC | Waite Park | MN | — | ◇ UNVERIFIED |
| DPDiversified Plastics Corporation | Nixa | MO | — | ◇ UNVERIFIED |
| DMDoyle Manufacturing INC. | Holland | OH | — | ◇ UNVERIFIED |
| DIDrasgow INC | Gainesville | NY | — | ◇ UNVERIFIED |
| DIDrp Industries | Granbury | TX | — | ◇ UNVERIFIED |
| DPDuralum Products, INC | Sacramento | CA | — | ◇ UNVERIFIED |
| DEDuris Electro Plating INC | Springville | UT | — | ◇ UNVERIFIED |
| DMDutchman Manufacturing Company LLC | Traverse City | MI | — | ◇ UNVERIFIED |
 Earnest Products, INC. | Longwood | FL | — | ◇ UNVERIFIED |
| ELEconomasters, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| EAEdge Automation INC | Saint Michael | MN | — | ◇ UNVERIFIED |
| ETEdm Tech Center INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| EJEdwin J. Mckenica & Sons, INC. | Buffalo | NY | — | ◇ UNVERIFIED |
| EPE&h Premier Machine, INC. | Luxemburg | WI | — | ◇ UNVERIFIED |
| EPEidemiller Precision Machining | Milford | MI | — | ◇ UNVERIFIED |
| EAElc American, Corporation | Bayville | NJ | — | ◇ UNVERIFIED |
| EHEmil Hans Tool LLC Dba B - E Tool | Minneapolis | MN | — | ◇ UNVERIFIED |
| EFEmpire Foundry Production & Reclaim | Waterloo | IA | — | ◇ UNVERIFIED |
| EMEmpire Metal Products, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| ESEmpire State Specialty Metals, INC. | Springville | NY | — | ◇ UNVERIFIED |
| ELEmw LLC | Middleton | MA | — | ◇ UNVERIFIED |
| EIEnconco INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| EPEnterprise Pattern - Prototype INC | Jordan | MN | — | ◇ UNVERIFIED |
| EIEpcor Industrial, INC. | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| EMExeter Machine CO INC | Lomira | WI | — | ◇ UNVERIFIED |
 Experimental Machine, INC. | Hunt Valley | MD | — | ◇ UNVERIFIED |
| EGExpress Gage INC | Romeo | MI | — | ◇ UNVERIFIED |
| FIFabex INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| FIFabtech INC | Goodhue | MN | — | ◇ UNVERIFIED |
| FAFalcon Abrasive Manufacturing INC | Montclair | CA | — | ◇ UNVERIFIED |
| FFFalls Fabricating LLC | Little Falls | MN | — | ◇ UNVERIFIED |
| FSFalmer Screw Products & Mfg. | Youngstown | OH | — | ◇ UNVERIFIED |
| FPFederal Prison Industries, INC | Bruceton Mills | WV | — | ◇ UNVERIFIED |
| FIFerreus Industries INC | Bluffdale | UT | — | ◇ UNVERIFIED |
| FIFibertech INC. | Elberfeld | IN | — | ◇ UNVERIFIED |
| FIFikeco INC | Cynthiana | KY | — | ◇ UNVERIFIED |
| FLFine Line Fabricating INC | Phoenix | AZ | — | ◇ UNVERIFIED |
| FIFlexmation INC | Burnsville | MN | — | ◇ UNVERIFIED |
| FMFlight Mold & Engineering INC | Saint Clair | MI | — | ◇ UNVERIFIED |
| FPFocal Point Design LLC | Chaska | MN | — | ◇ UNVERIFIED |
| FMForestville Machine CO | Plainville | CT | — | ◇ UNVERIFIED |
| FIForgiato INC | Sun Valley | CA | — | ◇ UNVERIFIED |
| FPForte Product Solutions | Farmington | MO | — | ◇ UNVERIFIED |
| FEFox Engineering LLC | Cambridge | MN | — | ◇ UNVERIFIED |
| FMFrb Machine, INC. | Emlenton | PA | — | ◇ UNVERIFIED |
| FRFred Ricci Tool Co., INC. | Johnston | RI | — | ◇ UNVERIFIED |
| FSFrontier Swiss LLC | Provo | UT | — | ◇ UNVERIFIED |
