| BLBeamaco, LLC | Manitowoc | WI | — | ◇ UNVERIFIED |
| BMBecker Machine - Tool INC | Princeton | MN | — | ◇ UNVERIFIED |
| BMBenson Metals INC | Mendota | MN | — | ◇ UNVERIFIED |
| BMBf Machining & Manufacturing INC | Anoka | MN | — | ◇ UNVERIFIED |
| BSBig Sky Precision INC. | Manhattan | MT | — | ◇ UNVERIFIED |
| BEBison Engineering CO INC | Long Beach | CA | — | ◇ UNVERIFIED |
| BKB - K Swiss INC | Ramsey | MN | — | ◇ UNVERIFIED |
| BSBlading Services Unlimited LLC | Canastota | NY | — | ◇ UNVERIFIED |
| BMBliss Machine INC. | Arcade | NY | — | ◇ UNVERIFIED |
| BMBloomer Machine & Fabrication INC. | Bloomer | WI | — | ◇ UNVERIFIED |
| BCBlue Chip Machine | Waite Park | MN | — | ◇ UNVERIFIED |
| BPBtd Precision, INC. | Chicopee | MA | — | ◇ UNVERIFIED |
| BMBurn-rite Mold and Machine INC. | Canton | OH | — | ◇ UNVERIFIED |
| BIBy-weld Industries, INC. | Bixby | OK | — | ◇ UNVERIFIED |
| CMCammand Machining LLC | Romeo | MI | — | ◇ UNVERIFIED |
| CMCarolina Machining - Fabrication, INC | Youngsville | NC | — | ◇ UNVERIFIED |
| 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 |
| CCChappell Central INC | Willmar | MN | — | ◇ UNVERIFIED |
| CSChip Star Technology LLC | Beaverton | OR | — | ◇ UNVERIFIED |
| CACinchseal Associates INC. | Pennsauken | NJ | — | ◇ UNVERIFIED |
| CPCj Precision Industires INC | Signal Hill | CA | — | ◇ UNVERIFIED |
 Cnc Precision Machine INC | Garrettsville | OH | — | ◇ UNVERIFIED |
| CCCogitic Corporation | Colorado Springs | CO | — | ◇ UNVERIFIED |
| CMColonial Mold INC | Clinton Twp | MI | — | ◇ UNVERIFIED |
| CMConcept Machine - Design INC | Rabbit Hash | KY | — | ◇ UNVERIFIED |
| CICoxreels INC | Tempe | AZ | — | ◇ 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 |
| CECs Eng., INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| CFCustom Fabricated Metals, LLC | Fontana | CA | — | ◇ UNVERIFIED |
| CMCustom Machine & Tool CO INC | Hanover | MA | — | ◇ UNVERIFIED |
| CECutting Edge Manufacturing Company, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| DTDagry Tooling INC | Owatonna | MN | — | ◇ UNVERIFIED |
| DTDas Technologies | Paw Paw | MI | — | ◇ UNVERIFIED |
| DADatum a Industries INC | Maple Plain | MN | — | ◇ UNVERIFIED |
| DIDcg-pmi, INC. | Bethel | CT | — | ◇ UNVERIFIED |
| DSDeep South Machinist, LLC | Lafayette | LA | — | ◇ UNVERIFIED |
| DMDenver Machine Shop, INC. | Henderson | CO | — | ◇ UNVERIFIED |
| DLDiamond Lake Tool INC | Elk River | MN | — | ◇ UNVERIFIED |
| DTDiverse Tooling, INC. | Plymouth | WI | — | ◇ UNVERIFIED |
| DIDrasgow INC | Gainesville | NY | — | ◇ UNVERIFIED |
| DIDrp Industries | Granbury | TX | — | ◇ UNVERIFIED |
| DPDuralum Products, INC | Sacramento | CA | — | ◇ UNVERIFIED |
| DMDutchman Manufacturing Company LLC | Traverse City | MI | — | ◇ UNVERIFIED |
| ELEconomasters, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
