| DPDecker Precision Machining, INC. | Peosta | IA | — | ◇ UNVERIFIED |
| DBDeco Blades LLC | Middletown | CT | — | ◇ UNVERIFIED |
| DPDeco Plastics, INC. | Houston | TX | — | ◇ UNVERIFIED |
| DODecorah Ops Textron Fastening Sys | Decorah | IA | — | ◇ UNVERIFIED |
| DMDecorative Metal Coatings | Escondido | CA | — | ◇ UNVERIFIED |
| DMDecorative Metal Coatings | Oceanside | CA | — | ◇ UNVERIFIED |
| DPDecore Plating | Carson | CA | — | ◇ UNVERIFIED |
| DIDecostar Industries, INC. | Mccalla | AL | — | ◇ UNVERIFIED |
| DMDecuir Manufacturing CORP | Fallbrook | CA | — | ◇ UNVERIFIED |
| DEDeed's Engineering | Moorpark | CA | — | ◇ UNVERIFIED |
| DEDee Engineering | Ontario | CA | — | ◇ UNVERIFIED |
| DIDee INC - Machine Shop | Crookston | MN | — | ◇ UNVERIFIED |
| DPDeepsea Power & Light INC | San Diego | CA | — | ◇ UNVERIFIED |
| DCDeermont Corporation | Rutland | VT | — | ◇ UNVERIFIED |
| DDDefinitive Design INC. | Kennesaw | GA | — | ◇ UNVERIFIED |
| DEDeghetto Engineering INC | Minnetonka | MN | — | ◇ UNVERIFIED |
| DEDeghetto Engineering INC | Hopkins | MN | — | ◇ UNVERIFIED |
| DFDelafield Fluid Technologies | Duarte | CA | — | ◇ UNVERIFIED |
| DLDeland Logistics LLC | Deland | FL | — | ◇ UNVERIFIED |
| DLDe La Rosa Manufacturing INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| DMDellamar Manufacturing Company | Belleville | MI | — | ◇ UNVERIFIED |
| DMDelmedico Machine INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| DADelphi Automotive Systems LLC | Warren | OH | — | ◇ UNVERIFIED |
| DMDelphi Machine Works LLC | Rossville | IN | — | ◇ UNVERIFIED |
| DMDelstar Metal Finishing | Houston | TX | — | ◇ UNVERIFIED |
| DIDelta Industrial Dba Delta Modtech | Ramsey | MN | — | ◇ UNVERIFIED |
| DMDeltak Manufacturing INC. | South Point | OH | — | ◇ UNVERIFIED |
| DMDelta Machine Company, LLC. | Gardena | CA | — | ◇ UNVERIFIED |
| DMDelta Machine, LLC | Deland | FL | — | ◇ UNVERIFIED |
| DMDelta Machine & Tool, INC. | Palmer | MA | — | ◇ UNVERIFIED |
| DMDelta Metal Finishing, INC. | Saint Petersburg | FL | — | ◇ UNVERIFIED |
| DPDelta Pattern, INC. | South Gate | CA | — | ◇ UNVERIFIED |
| DPDelta Plating INC | Stockton | CA | — | ◇ UNVERIFIED |
| DPDelta Plating, INC. | Canton | OH | — | ◇ UNVERIFIED |
| DPDelta Precision Tool & Inst CO | Hauppauge | NY | — | ◇ UNVERIFIED |
| DIDelta-Ray Industries, Inc. | Bridgeport | CT | — | ◇ UNVERIFIED |
| DSDelta Secondary LLC | Bensenville | IL | — | ◇ UNVERIFIED |
| DCDeltatech Controls USA LLC | Shakopee | MN | — | ◇ UNVERIFIED |
| DTDelta Trailer, INC. | Houston | TX | — | ◇ UNVERIFIED |
| DYDelta Yimin Technologies INC Dba Delta Pacific Products | Union City | CA | — | ◇ UNVERIFIED |
| DWDel West Engineering INC | Valencia | CA | — | ◇ UNVERIFIED |
| DWDel West USA | Valencia | CA | — | ◇ UNVERIFIED |
| DPDemco Products | Oak Lawn | IL | — | ◇ UNVERIFIED |
| DMDempster Machine Shop Incorporated | Knoxville | TN | — | ◇ UNVERIFIED |
| DLDemr, LLC | Phoenixville | PA | — | ◇ UNVERIFIED |
| DMDenbeste Manufacturing INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| DBDenise & Brian, LLC | Rockford | IL | — | ◇ UNVERIFIED |
| DMDennie's Manufacturing INC. | Canandaigua | NY | — | ◇ UNVERIFIED |
| DMDennie's Manufacturing INC. | Canandaigua | NY | — | ◇ UNVERIFIED |
| DADennison Automatics | Nunica | MI | — | ◇ UNVERIFIED |
| DADENO Amalgamated, LLC | Dayton | OH | — | ◇ UNVERIFIED |
| DNDe Nora North America INC | Somerset | NJ | — | ◇ UNVERIFIED |
| DADenso Air Systems | Battle Creek | MI | — | ◇ UNVERIFIED |
| DMDenso Manufacturing Michigan INC | Battle Creek | MI | — | ◇ UNVERIFIED |
| DIDent II, LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| DWDentoni's Welding Works, INC. | Stockton | CA | — | ◇ UNVERIFIED |
| DODepartment of Veterans Affairs 3d Printing Laboratory | North Charleston | SC | — | ◇ UNVERIFIED |
| DDero/everlast | Fridley | MN | — | ◇ UNVERIFIED |
| DPDesai Precision Duburring INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| DADeschaine and Roy, INC. | Upland | CA | — | ◇ UNVERIFIED |
| DLDesemco, LLC | Marietta | GA | — | ◇ UNVERIFIED |
| DPDesert Plastering L.l.c. | North Las Vegas | NV | — | ◇ UNVERIFIED |
| DPDesert Precision Products, LLC | Kingman | AZ | — | ◇ UNVERIFIED |
| DMDeshler's Machine Shop | Bangor | PA | — | ◇ UNVERIFIED |
| DADesign and Fabricating INC | Cokato | MN | — | ◇ UNVERIFIED |
| DADesign and Fabricating INC | Cokato | MN | — | ◇ UNVERIFIED |
| DBDesign By Built to Last, INC | Venice | FL | — | ◇ UNVERIFIED |
| DCDesign Corrugating CO | Oakdale | CA | — | ◇ UNVERIFIED |
| DCDesign Corrugating Company | Taylorville | IL | — | ◇ UNVERIFIED |
 Design Engineering | Simi Valley | CA | — | ◇ UNVERIFIED |
| Design Engineering & Manufacturing CO | Braham | MN | — | ◇ UNVERIFIED |
| DEDesign Enterprizes, LLC | Westminster | MD | — | ◇ UNVERIFIED |
| DSDesigner Sinks | Hanover | MA | — | ◇ UNVERIFIED |
| DFDesign Fab, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| DMDesign Machine | Sacramento | CA | — | ◇ UNVERIFIED |
| DFDesigns for Tomorrow, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| DSDesign Shapes in Steel | South El Monte | CA | — | ◇ UNVERIFIED |
| DMDesignTech Manufacturing LLC | Stanley | WI | — | ◇ UNVERIFIED |
| DMDes Machine Shop, CORP. | Roswell | GA | — | ◇ UNVERIFIED |
| DSD.E. Smith Inc | Des Moines | IA | — | ◇ UNVERIFIED |
| DMDetayl Manufacturing Co., INC. | Zieglersville | PA | — | ◇ UNVERIFIED |
| DBDeterman Brownie INC - Nassau St | Minneapolis | MN | — | ◇ UNVERIFIED |
 Detroit Edge Tool Company | Roseville | MI | — | ◇ UNVERIFIED |
| DSDetroit Speed and Engineering | Mooresville | NC | — | ◇ UNVERIFIED |
| DTDetroit Tubing Mill INC | Detroit | MI | — | ◇ UNVERIFIED |
| DCDeutsch CO Metal Components D | Gardena | CA | — | ◇ UNVERIFIED |
| DFDeutsch Fastner Company | Paramount | CA | — | ◇ UNVERIFIED |
| DDevco | Redlands | CA | — | ◇ UNVERIFIED |
| DRDevil Ray INC Dba Supra Alloys Castle Metals | Paramount | CA | — | ◇ UNVERIFIED |
| DMDevincenzi Metal Products | Burlingame | CA | — | ◇ UNVERIFIED |
| DMDevin Mfg., INC. | Arcade | NY | — | ◇ UNVERIFIED |
| DEDevore Engraving, Inc. | Canton | OH | — | ◇ UNVERIFIED |
| DBDevries Bar Grinding INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| DTDeWeyl Tool Co., Inc. | Petaluma | CA | — | ◇ UNVERIFIED |
| DLDewzen LLC | Nashua | NH | — | ◇ UNVERIFIED |
| DDDexter Distribution Center | Dexter | MI | — | ◇ UNVERIFIED |
| DMDexter Magnetic Materials Division | Richardson | TX | — | ◇ UNVERIFIED |
| DFD & F Corporation | Sterling Heights | MI | — | ◇ UNVERIFIED |
| DFD&g Fiberglass | Sun Valley | CA | — | ◇ UNVERIFIED |
| DPD&g Precision Manufacturing, INC. | Eden | WI | — | ◇ UNVERIFIED |
