| CSCrane & Steel Inc.* | Addison | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CSCustom Steel Processing, INC. | Granite City | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| CSCw Shumway & Sons | Batavia | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DCDeniston CO | Alsip | IL | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| DIDima Industries | Elk Grove Village | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| DDDo-rite Die & Engineering Company | Chicago Heights | IL | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| DMDulin Metals CO | Joliet | IL | Primary Metal Manufacturing331492 | — | ◇ UNVERIFIED |
| DPDurable Packaging International, INC. | Lincolnshire | IL | Primary Metal Manufacturing331319 | — | ◇ UNVERIFIED |
| DIDuro-cast, INC. | Somonauk | IL | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| FIFlexmag Industries, INC. | Marengo | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| FCFluxxor Corporation | North Aurora | IL | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| FNFrancis & Nygren Foundry CO | Chicago | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GCGalesburg Castings INC | Galesburg | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GWGeorge Wilson | Danville | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| GMGfi Metal Treating INC | Rockford | IL | Primary Metal Manufacturing331410 | — | ◇ UNVERIFIED |
| GBGlobal Brass and Copper LLC Dba Olin Brass | East Alton | IL | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| GBGlobal Brass and Copper LLC Dba Olin Brass | East Alton | IL | Primary Metal Manufacturing331421 | — | ◇ UNVERIFIED |
| GIGrand Iron Work INC. | Chicago | IL | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| HFHandi Foil | Antioch | IL | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| HCHandi-foil CORP. | Naperville | IL | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
 Handi Products, INC. Dba Handi-ramp, INC. | Libertyville | IL | Primary Metal Manufacturing331315 | — | ◇ UNVERIFIED |
| HDHeick Die Casting CORP | Chicago | IL | Primary Metal Manufacturing331521 | — | ◇ UNVERIFIED |
| HPHutchinson Products LLC | Alton | IL | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| IKIce Krackers, INC. | Springfield | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| INIllinois Ni Cast, LLC | Champaign | IL | Primary Metal Manufacturing331528 | — | ◇ UNVERIFIED |
| IWIllinois Weld & Machine, INC. | Hanna City | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| IPIndustrial Properties of Palatine, LLC | Palatine | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| JIJernberg Industries INC | Chicago | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| JWJerry's Welding INC. | Elgin | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| JBJjj Brass & Aluminum Foundry, LLC | South Beloit | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| KTKazmier Tooling Inc., | Chicago | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| KMKellerman Manufacturing Company INC. | Wauconda | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| KNK. N. M. Industries, INC. | Harwood Heights | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| KIK.n.m. Industries, INC. Dba Lexco Cable | Norridge | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| KWKrazy Wills | Rockford | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| LTLeavitt Tube Co., LLC | Northbrook | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| LBLeitelt Brothers Foundry, INC | Chicago | IL | Primary Metal Manufacturing331525 | — | ◇ UNVERIFIED |
| LMLouis Meskan Brass Foundry, INC. | Chicago | IL | Primary Metal Manufacturing331523 | — | ◇ UNVERIFIED |
| LLLyon LLC | Paris | IL | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| MMMagnus Metal INC | East Peoria | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MMMan-sea Metal, INC. | Mount Zion | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| MAMapes and Sprowl Steel, LTD. | Elk Grove Village | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| MMMarble Machine, INC. | Danville | IL | Primary Metal Manufacturing331524 | — | ◇ UNVERIFIED |
| MGMarion Gardner Jr | Dennison | IL | Primary Metal Manufacturing331420 | — | ◇ UNVERIFIED |
| MMMaster Machine & Repair Corporation | Bedford Park | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| MFMercedes Fabricating, INC. | Chicago Heights | IL | Primary Metal Manufacturing331110 | — | ◇ UNVERIFIED |
| MRMerdian Rail Products CORP | Cicero | IL | Primary Metal Manufacturing331513 | — | ◇ UNVERIFIED |
| MPMetal Partners Rebar, LLC | Chicago | IL | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MRMetal Resource INC. | Hinsdale | IL | Primary Metal Manufacturing331221 | — | ◇ UNVERIFIED |
| MIMgf Industries | Rockford | IL | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
