 DGG Industries, Inc. | Attleboro | MA | — | ◇ UNVERIFIED |
| DSDh Steel Products, LLC | Erie | PA | — | ◇ UNVERIFIED |
| DEDiamante Enterprises, INC. | San Antonio | TX | — | ◇ UNVERIFIED |
| DCDiameters Corporation | Chicago Heights | IL | — | ◇ UNVERIFIED |
 Diamondback Manufacturing LLC | Orem | UT | — | ◇ UNVERIFIED |
| DEDiamond Environmental Services LP | Banning | CA | — | ◇ UNVERIFIED |
| DEDiamond Eye Manufacturing LLC | Athena | OR | — | ◇ UNVERIFIED |
| DIDiamond Industries, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| DMDiamond Manufacturing CORP C/o | San Leandro | CA | — | ◇ UNVERIFIED |
| DMDiamond Metal Products INC | Ham Lake | MN | — | ◇ UNVERIFIED |
| DMDiamond Metals Distribution INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| DWDiamond Welding INC | Honolulu | HI | — | ◇ UNVERIFIED |
| DWDiamond Wire Spring Company | Tyler | TX | — | ◇ UNVERIFIED |
| DRDiaz Roofing and Sheet Metal | Violet | LA | — | ◇ UNVERIFIED |
| DMDice Mold & Engineering, INC. | Itasca | IL | — | ◇ UNVERIFIED |
| DIDi-cor Industries, INC. | Bristol | CT | — | ◇ UNVERIFIED |
| DSDie Stampco INC | Bay City | MI | — | ◇ 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 |
| DSDimic Steel Tech, INC. | Upland | CA | — | ◇ UNVERIFIED |
| DPDi Primo Fabricators INC - Watson Industrial Park | Saint Louis | MO | — | ◇ UNVERIFIED |
| DSDirect Source Supply INC. | Mamaroneck | NY | — | ◇ UNVERIFIED |
| DIDirtBound Inc. | Center City | MN | — | ◇ UNVERIFIED |
| DNDistribution Now | Carson | CA | — | ◇ UNVERIFIED |
| DWDistrict Welding co., LLC | Oceanside | CA | — | ◇ UNVERIFIED |
| DMDittrich Mechanical - Fabrication INC | Mankato | MN | — | ◇ UNVERIFIED |
| DIDiversico Industries, INC. | Minneapolis | MN | — | ◇ UNVERIFIED |
| DFDiversified Fabrication & Accessories LLC | Sebring | FL | — | ◇ UNVERIFIED |
| DHDiversified Holdings of Dallas, INC. | Dallas | NC | — | ◇ UNVERIFIED |
| DMDiversified Metal Fabricators INC | Ferndale | MI | — | ◇ UNVERIFIED |
| DPDiversified Products INC | Bend | OR | — | ◇ UNVERIFIED |
| DPDiversified Products Mfg | Jacksonville | FL | — | ◇ UNVERIFIED |
| DSDiversified Steel Fabricators, INC. | Montgomery | AL | — | ◇ UNVERIFIED |
| DSDiversified Systems of Jax | Jacksonville | FL | — | ◇ UNVERIFIED |
| DWDiversified Welding Works INC | Vancouver | WA | — | ◇ UNVERIFIED |
| D5Division 5 | Winston Salem | NC | — | ◇ UNVERIFIED |
| D5Division 5 Fabricators, INC. | Russellville | KY | — | ◇ UNVERIFIED |
| D5Division 5 Florida, INC. | Starke | FL | — | ◇ UNVERIFIED |
| D5Division 5, INC. | Winston | GA | — | ◇ UNVERIFIED |
| D8Division 8 CO INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| DMDixie Marketing and Playground Equipment, INC. | Falkville | AL | — | ◇ UNVERIFIED |
| DMDixie Metal Products LLC | Memphis | TN | — | ◇ UNVERIFIED |
| DTDixie Trailer and Truck Equipment | Ashland | VA | — | ◇ UNVERIFIED |
| DEDjb Enterprises LTD. | Phoenix | AZ | — | ◇ UNVERIFIED |
| DIDkoroza, INC | Hialeah | FL | — | ◇ UNVERIFIED |
| DMDLC Manufacturing & Fabrication, Inc. | New Ulm | MN | — | ◇ UNVERIFIED |
