| CPCraftsman Plating & Tinning | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CPCraftsman Plating & Tinning CORP | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| CBCrown Beverage Packaging | Bradley | IL | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CCCrown Cork & Seal CO INC | Warrensburg | IL | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| CTCurtis Thermal Processing | Machesney Park | IL | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| CHCustom Hard Chrome | Rosemont | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DSDanville Steel | Danville | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| DIDasco INC | Rockford | IL | Fabricated Metal Product Manufacturing332216 | — | ◇ UNVERIFIED |
| DBDavid Brown Hydraulics INC. | Franklin Park | IL | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| DWDavis Welding | Gibson City | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
 Dayton Superior CORP | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DMDb Metal Finishing LLC | Rockford | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| DPDecatur Plating & Mfg CO | Decatur | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DED E H Printed Circuits | Elgin | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DPDelta Precision Circuits | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332722 | — | ◇ UNVERIFIED |
| DPDiamond Plating CO INC | Madison | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DIDisa Industries INC | Oswego | IL | Fabricated Metal Product Manufacturing332997 | — | ◇ UNVERIFIED |
| DMD Martin Enterprises INC | Chicago Heights | IL | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| DMDme Manufacturing | Skokie | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DIDover Industrial Chrome INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DMDrawn Metal Products Division | Niles | IL | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| DLDrives LLC | Fulton | IL | Fabricated Metal Product Manufacturing332111 | — | ◇ UNVERIFIED |
| DPDrum Parts Midwest CO | Thornton | IL | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| DCDs Containers West Chicago | West Chicago | IL | Fabricated Metal Product Manufacturing332431 | — | ◇ UNVERIFIED |
| DPDupage Plating CO | Addison | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| DCDuroweld CO INC | Lake Bluff | IL | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| DIDynomax INC | Buffalo Grove | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| ETEagle Tubular Products INC | Alton | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| EMEast Moline Metal Products CO | East Moline | IL | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| ECEclipse Combustion INC | Rockford | IL | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| EPEconomy Plating INC | Chicago | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| EMEdsal Manufacturing CO INC | Chicago | IL | Fabricated Metal Product Manufacturing332119 | — | ◇ UNVERIFIED |
| EMEklund Metal Treating INC | Loves Park | IL | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| EMElectroplated Metal Solutions | Elk Grove Village | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| ESEnameled Steel and Sign CO | Chicago | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| ESEnameled Steel & Sign CO | Rockford | IL | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| ESEriem Surgical INC | Lake Forest | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| EAEtch a Die Div of Best Cut Die | Skokie | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FIFabral INC | Gridley | IL | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| FDFederal-mogul Driveline Products | Forest View | IL | Fabricated Metal Product Manufacturing332811 | — | ◇ UNVERIFIED |
| FAFh Ayer Mfg CO | Chicago Heights | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| FFibrebond | Edelstein | IL | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| FMFinished Metals INC | Chicago | IL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| FCFinishing CO INC | Franklin Park | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FMFinish Master Plating | Quincy | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FSFlexible Steel Lacing CO | Downers Grove | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| FPForest Plating CO | Forest Park | IL | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FGForge Group Cardinal LLC Dba Cardinal Forge Company | Rochelle | IL | Fabricated Metal Product Manufacturing332112 | — | ◇ UNVERIFIED |
| FAForm All Spring & Stamping | Bensenville | IL | Fabricated Metal Product Manufacturing332613 | — | ◇ UNVERIFIED |
| FCFormaloy CORP | Morton | IL | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
