| EFEureka Foundry Company | Chattanooga | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CPCharlotte Pipe and Foundry Company | Charlotte | NC | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GTGoulds Turbine Foundry | Slaton | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PFProspect Foundry LLC | Minneapolis | MN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BSBarber Steel Foundry Corporation | Rothbury | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CPCastwell Products INC | Skokie | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ECEnterprise Casting Corporation | Lewiston | ME | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MPMetlcast Products Incorporated | Salina | KS | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| RFRusselloy Foundry INC | Durant | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TFTrumbull Foundry & Alloy | Niles | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ABA & B Foundry INC | Birmingham | AL | Nonmetallic Mineral Product Manufacturing327999 | — | ◇ UNVERIFIED |
| AAAccess Auto Salvage | Independence | MO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
 Acme Foundry CO | Minneapolis | MN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| AIAffco INC | Anaconda | MT | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ANAkers Natl Roll Co/hyde Park Foundry | Hyde Park | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| AFAkron Foundry, INC. | Akron | IN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ACAlabama Casting CO | Aliceville | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ABAlfredson Brothers Construction Company | Menominee | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| AAndritz | Tualatin | OR | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ALAozi-brookville, LLC | Indianapolis | IN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ACAti Casting Service | Alpena | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| AFAuburn Foundry INC | Auburn | NY | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| AFAuburn Foundry, INC Plant 1 | Auburn | IN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BPBarry Pattern and Foundry Company, INC. | Birmingham | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BIBehr Iron & Metal | Peoria | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BCBelcher (advanced Cast Products) | Easton | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BFBell Foundry CO | South Gate | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BCBentonville Castings Company | Bentonville | AR | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BFBig Four Foundries CORP | Tulsa | OK | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BFBlackhawk Foundry & Machine CO | Davenport | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BFBloomfield Foundry, INC | Bloomfield | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BFBoyertown Foundry Co/fka Eafco | New Berlinville | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BMBrom Machine & Foundry CO | Winona | MN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BMBurgess-norton Mfg CO / Std Auto Parts CO Div | Muskegon | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CCCamden Casting Center INC | Camden | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CFCampbell Foundry Company | Harrison | NJ | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CICarmack INC Dba Phenix Foundry | Phenix City | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CICastalloy INC Walterboro | Walterboro | SC | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CTCast-fab Technologies, INC. | Cincinnati | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CICaterpillar INC Seals Metalcasting Facility | Toccoa | GA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CFCharlette Foundry | Blackstone | MA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CLChrysler, LLC | Indianapolis | IN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CACitation Aluminum, LLC | Bay Minette | AL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CMClearfield Mach Co/3rd & Everett Streets | Clearfield | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CRClinch River Casting INC. | Caryville | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CICooper Ind/corry Plt | Corry | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CICovert Iron Works | Cudahy | CA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CMCraft Machine Works Incorporated - 56th Street | Hampton | VA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CVCrane Valves Fndry Sand Landfill-wa Cnty | Washington | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| DCDalton CORP Kendallville Mfg Facility | Kendallville | IN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
