| WVWaterman Valve, LLC | Exeter | CA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WCWeatherly Casting & Mach CO Llc/weatherly Plt | Weatherly | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WMWeil Mclain a United Dominion Company | Michigan City | IN | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WCWescast Casting Cordele LLC | Cordele | GA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| ARArmsted Rail Company INC | Hammond | IN | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| BCBesser CO | Sioux City | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| BQBesser Quinn Machine & Foundry | Boone | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| BIBrewton Iron Works INC | Brewton | AL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CCCentral Castings CORP | Anniston | AL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CMCharter Manufacturing CO INC | Woodstock | IL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CVClow Valve CO - Foundry | Oskaloosa | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CWClow Water Systems Company | Coshocton | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CCCol-pump Company, INC. (0215010001) | Columbiana | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CDCrouse-hinds Div of Cooper Inds | Amarillo | TX | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| CCCrown Casting INC | Hodges | SC | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| EJEast Jordan Foundry LLC | Elmira | MI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| EIEbaa Iron Eastland Plant | Eastland | TX | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| FCFord Cleveland Casting Plant | Brook Park | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| GGGci Gokoh Coldwater INC | Coldwater | MI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| GDGm Defiance Casting Operations | Defiance | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| GIGray Iron Fndry | Blackwell | OK | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| GIGrede Ii, LLC - Brewton | Brewton | AL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| GWGriffin Wheel Columbus Plant | Groveport | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| ICId Castings Building Demolition | Noblesville | IN | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| IPIngersoll-dresser Pump CO | Hastings | NE | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| LNLenco, Nlc INC. | Jackson | MO | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MSMaca Supply CO | Springville | UT | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MTMetal Technologies, Inc., Ravenna Ductile Iron | Ravenna | MI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MTMetal Technologies INC -three Rivers Gray Iron | Three Rivers | MI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MCMueller CO | Decatur | IL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| MCMueller CO | Decatur | IL | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| NONational Oilwell Varco/tulsa Multiplex | Tulsa | OK | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| NINibco INC | Blytheville | AR | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| NINorthern Iron LLC | Saint Paul | MN | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| OIOsco Industries, INC. New Boston Divisi (0773010180) | New Boston | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| OIOsco Industries INC Portsmouth Div | Portsmouth | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| OKO.s. Kelly Company (0812100276) | Springfield | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| PMPrecision Metalsmiths INC. | Markesan | WI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| QCQuaker City Castings (0215090009) | Salem | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| QCQuality Castings CO | Waukesha | WI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| RIRomac Industries | Sultan | WA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
Sioux City Foundry CO | South Sioux City | NE | Primary Metal Manufacturing331419 | — | ◐ LIKELY ACTIVE |
| SAStandard Alloys Port Arthur | Port Arthur | TX | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| SUStarpipe USA Dba Sp Foundry / Sp Foundry | South Coffeyville | OK | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| SMSt. Marys Foundry INC. (0306010004) | Saint Marys | OH | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| TFTonkawa Foundry INC / Tonkawa Foundry | Tonkawa | OK | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| TPTyler Pipe | Tyler | TX | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| VIValmet INC | Waukesha | WI | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| VPViking Pump INC - South Main Facility | Cedar Falls | IA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |
| WMWard Mfg Plt 1 & 2 | Blossburg | PA | Primary Metal Manufacturing331511 | — | ◐ LIKELY ACTIVE |