| CTCustom Tool & Design Company INC | Huntingdon | TN | — | ◇ UNVERIFIED |
| CACut Apart Metal Art | Aurora | CO | — | ◇ UNVERIFIED |
| CMCutters Machine Tool INC | Lexington | TN | — | ◇ UNVERIFIED |
| CECutting Edge Manufacturing, INC. | Nampa | ID | — | ◇ UNVERIFIED |
| CICv International INC | Torrance | CA | — | ◇ UNVERIFIED |
| CICyclops Iron Works | Mamaroneck | NY | — | ◇ UNVERIFIED |
| CSCynergy Systems, INC. | Delray Beach | FL | — | ◇ UNVERIFIED |
| CFCypress Fabrication Services, L.L.C. | St Martinville | LA | — | ◇ UNVERIFIED |
| CTCzech Tool, INC. | Saegertown | PA | — | ◇ UNVERIFIED |
| DLD2h, LLC | Salem | OR | — | ◇ UNVERIFIED |
| DEDa Eun Pacific | Tamuning | GU | — | ◇ UNVERIFIED |
| DMDal Machine INC | Otsego | MN | — | ◇ UNVERIFIED |
| DEDane Engineering INC | Brainerd | MN | — | ◇ UNVERIFIED |
| DDDaniel Dole, Artist Blacksmith | Berkeley | CA | — | ◇ UNVERIFIED |
| DKDaniel Kirsch | Woodburn | OR | — | ◇ UNVERIFIED |
| DEDanson Enterprises, LLC | Fort Collins | CO | — | ◇ UNVERIFIED |
| DFDarchuks Fabrication and Stainless Steel Works INC | Park Rapids | MN | — | ◇ UNVERIFIED |
| DMDarling Manufacturing CO. | Pender | NE | — | ◇ UNVERIFIED |
| DTDau Thermal Solutions NA | Macedon | NY | — | ◇ UNVERIFIED |
| DFDave's Flow Measurement, LLC | Fort Collins | CO | — | ◇ UNVERIFIED |
| DMDavid Maldonado | San Marcos | CA | — | ◇ UNVERIFIED |
| DEDavidson Enterprises INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| DWDavid Whitlow | Adamsville | TN | — | ◇ UNVERIFIED |
| DVDa Vinci Metal Works, LLC | Chula Vista | CA | — | ◇ UNVERIFIED |
| DGDavis Gregg Enterprises INC | Santee | CA | — | ◇ UNVERIFIED |
| DMDavis Metal & Powder Coating, LLC | Port Clinton | OH | — | ◇ UNVERIFIED |
| DIDayani Investments LLC | Las Vegas | NV | — | ◇ UNVERIFIED |
| DSDayton Steel Fabricators | Houston | TX | — | ◇ UNVERIFIED |
| DBDb Building Fasteners INC | Ontario | CA | — | ◇ UNVERIFIED |
| DFD&b Fabrication Plus, INC. | Riverside | CA | — | ◇ UNVERIFIED |
| DBD B Western INC | North Bend | OR | — | ◇ UNVERIFIED |
| DMD&C Machine LLC | Mechanicsburg | PA | — | ◇ UNVERIFIED |
| DIDcs Industries LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| DRDDB Real Estate, LLC | Tifton | GA | — | ◇ UNVERIFIED |
| DMDdssaa Mfg., LLC | Salisbury | NC | — | ◇ UNVERIFIED |
| DWD&d Weld Fab, INC | Centerville | LA | — | ◇ UNVERIFIED |
| DDD & D Welding/fab INC. | Centerville | LA | — | ◇ UNVERIFIED |
| DADe Anza Contractors INC | Riverside | CA | — | ◇ UNVERIFIED |
| DMDecker Machine Works, INC | Ashfield | MA | — | ◇ UNVERIFIED |
| DLDeerebuilt, LLC | Ardmore | OK | — | ◇ UNVERIFIED |
| DJDe Jong Iron Works | Orangeburg | NY | — | ◇ UNVERIFIED |
| DMDelta Mechanical, INC. | Berwick | PA | — | ◇ UNVERIFIED |
| DPDelta Pattern, INC. | South Gate | CA | — | ◇ UNVERIFIED |
| DTDelta Trailer, INC. | Houston | TX | — | ◇ UNVERIFIED |
| DWDeluxe Welding, INC. | Reno | NV | — | ◇ UNVERIFIED |
| DLDenec, LLC | Huntsville | AL | — | ◇ UNVERIFIED |
| DBDenpak Building Products INC | Denver | CO | — | ◇ UNVERIFIED |
| DIDerlan INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| DDero/everlast | Fridley | MN | — | ◇ UNVERIFIED |
| DMDerson Manufacturing INC | Minnetrista | MN | — | ◇ UNVERIFIED |
| DODesert Owl Forge LLC | Pahrump | NV | — | ◇ UNVERIFIED |
| DPDesert Plastering L.l.c. | North Las Vegas | NV | — | ◇ UNVERIFIED |
| DPDesigner Palms INC | Andover | KS | — | ◇ UNVERIFIED |
| DSDesigner Sinks | Hanover | MA | — | ◇ UNVERIFIED |
| DSDesign Shapes in Steel | South El Monte | CA | — | ◇ UNVERIFIED |
| DMDesignTech Manufacturing LLC | Stanley | WI | — | ◇ UNVERIFIED |
| DTDetroit Tubing Mill INC | Detroit | MI | — | ◇ UNVERIFIED |
| DADevincenzi Architectural Products | Burlingame | CA | — | ◇ UNVERIFIED |
| DMDexter Magnetic Materials Division | Richardson | TX | — | ◇ UNVERIFIED |
| DGDfw Grating, INC. | Dallas | TX | — | ◇ UNVERIFIED |
| DWDg Welding and Design, LLC | Malta | OH | — | ◇ UNVERIFIED |
| DWDg Welding - Manufacturing INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| DDDh Docks LLC | Nisswa | MN | — | ◇ UNVERIFIED |
| DCDiadochi Capital LLC | Lake Worth Beach | FL | — | ◇ UNVERIFIED |
| DCDiameters Corporation | Chicago Heights | IL | — | ◇ UNVERIFIED |
 Diamondback Manufacturing LLC | Orem | UT | — | ◇ UNVERIFIED |
| DEDiamond Environmental Services LP | Banning | CA | — | ◇ UNVERIFIED |
| DIDiamond Industries, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| DMDiamond Manufacturing CORP C/o | San Leandro | CA | — | ◇ UNVERIFIED |
| DMDiamond Metals Distribution INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| DWDiamond Wire Spring Company | Tyler | TX | — | ◇ UNVERIFIED |
| DMDice Mold & Engineering, INC. | Itasca | IL | — | ◇ UNVERIFIED |
| DDDig Dog LLC | Costa Mesa | CA | — | ◇ UNVERIFIED |
| DHDi Highway Sign & Structure Corporation | New York Mills | NY | — | ◇ UNVERIFIED |
| DLDik & Lu 2365 LLC | Denver | CO | — | ◇ UNVERIFIED |
| DFDill Fabrication Company, Inc. | Greenville | SC | — | ◇ UNVERIFIED |
| DLDiMax, LLC | Temecula | CA | — | ◇ UNVERIFIED |
| DMDimensional Machine Works LLC | Houston | TX | — | ◇ UNVERIFIED |
| DTDirect Tank Services | Lone Star | TX | — | ◇ UNVERIFIED |
| DIDirtBound Inc. | Center City | MN | — | ◇ UNVERIFIED |
| DIDiscount Iron Fence & Gate, INC. | Cerritos | CA | — | ◇ UNVERIFIED |
| DIDistinctive Iron LLC | Elk River | MN | — | ◇ UNVERIFIED |
| DMDittrich Mechanical - Fabrication INC | Mankato | MN | — | ◇ UNVERIFIED |
| DEDiverse Energy Systems, LLC | Grafton | ND | — | ◇ UNVERIFIED |
| DFDiversified Fabrication & Accessories LLC | Sebring | FL | — | ◇ UNVERIFIED |
| DPDiversified Products INC | Bend | OR | — | ◇ UNVERIFIED |
| DWDiversified Welding Works INC | Vancouver | WA | — | ◇ UNVERIFIED |
| D5Division 5 | Winston Salem | NC | — | ◇ UNVERIFIED |
| DVDivision V Sheetmetal INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| DIDixie Industrial, LLC | Jacksonville | FL | — | ◇ UNVERIFIED |
| DMDixie Marketing and Playground Equipment, INC. | Falkville | AL | — | ◇ UNVERIFIED |
| DTDixie Trailer and Truck Equipment | Ashland | VA | — | ◇ UNVERIFIED |
| DWDixie Weld-fab, INC. | Belcher | LA | — | ◇ UNVERIFIED |
| DLD & L Ornamental Iron | Chanute | KS | — | ◇ UNVERIFIED |
| DEDmc Enterprises | La Vergne | TN | — | ◇ UNVERIFIED |
| DMD & M Iron Works INC | Roseville | MN | — | ◇ UNVERIFIED |
| DMDms Machinery & Fabrication | Groveton | NH | — | ◇ UNVERIFIED |
| DBD&n Bending CORP. | Romeo | MI | — | ◇ UNVERIFIED |
| DMDoll Marine Metal Fabrication, INC. | Fort Lauderdale | FL | — | ◇ UNVERIFIED |
| DLDonald L Farmer INC Dba Farmers Tractor & Equipment CO. | Porterville | CA | — | ◇ UNVERIFIED |
