| BCBesser CO | Sioux City | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| BQBesser Quinn Machine & Foundry | Boone | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CPCharlotte Pipe and Foundry Company | Charlotte | NC | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CMCharter Manufacturing CO INC | Woodstock | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CDCrouse-hinds Div of Cooper Inds | Amarillo | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CCCrown Casting INC | Hodges | SC | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| EJEast Jordan Foundry LLC | Elmira | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| EIEbaa Iron Eastland Plant | Eastland | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| EFEureka Foundry Company | Chattanooga | TN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| FCFord Cleveland Casting Plant | Brookpark | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GTGoulds Turbine Foundry | Slaton | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| GIGray Iron Fndry | Blackwell | OK | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ICId Castings Building Demolition | Noblesville | IN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| IPIngersoll-dresser Pump CO | Hastings | NE | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MSMaca Supply CO | Springville | UT | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MTMetal Technologies INC -three Rivers Gray Iron | Three Rivers | MI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur | IL | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| NONational Oilwell Varco/tulsa Multiplex | Tulsa | OK | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| NINibco INC | Blytheville | AR | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| NINorthern Iron & Machine | Saint Paul | MN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| OIOsco Industries, INC. New Boston Divisi (0773010180) | New Boston | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| OKO.s. Kelly Company (0812100276) | Springfield | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PMPrecision Metalsmiths INC. | Markesan | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| PFProspect Foundry LLC | Minneapolis | MN | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| QCQuaker City Castings (0215090009) | Salem | OH | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| QCQuality Castings CO | Waukesha | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| SAStandard Alloys Port Arthur | Port Arthur | TX | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| TFTonkawa Foundry INC / Tonkawa Foundry | Tonkawa | OK | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| VIValmet INC | Waukesha | WI | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| VPViking Pump INC - South Main Facility | Cedar Falls | IA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| WFWestern Foundries INC | Longmont | CO | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| WCWinchester Coatings | Winchester | KY | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| CCCast Corporation | Hibbing | MN | 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 |
