| GMGeneral Motors LLC Bedford Cetc | Bedford | IN | — | ◇ UNVERIFIED |
| GDGm Defiance Casting Operations | Defiance | OH | — | ◇ UNVERIFIED |
| GSGold Sheild Fiberglass INC 43-1 | Decatur | IN | — | ◇ UNVERIFIED |
| GTGoulds Turbine Foundry | Slaton | TX | — | ◇ UNVERIFIED |
| GWGraham White Mfg CO | Salem | VA | — | ◇ UNVERIFIED |
| GIGray Iron Fndry | Blackwell | OK | — | ◇ UNVERIFIED |
| GIGrede Ii, LLC - Brewton | Brewton | AL | — | ◇ UNVERIFIED |
| GLGrede LLC | New Castle | IN | — | ◇ UNVERIFIED |
| GLGrede LLC - Iron Mountain | Kingsford | MI | — | ◇ UNVERIFIED |
| GLGrede LLC - Liberty | Wauwatosa | WI | — | ◇ UNVERIFIED |
| GLGrede LLC - St Cloud | Saint Cloud | MN | — | ◇ UNVERIFIED |
| GPGriffin Pipe Products Company LLC | Lynchburg | VA | — | ◇ UNVERIFIED |
| GWGriffin Wheel Columbus Plant | Groveport | OH | — | ◇ UNVERIFIED |
| GCGunite Corporation | Rockford | IL | — | ◇ UNVERIFIED |
| HRHaysite Reinforced Plastics Llc/erie | Erie | PA | — | ◇ UNVERIFIED |
| HFHodge Foundry/greenville | Greenville | PA | — | ◇ UNVERIFIED |
| HAHowmet Aerospace INC. - Cleveland Works | Cuyahoga Heights | OH | — | ◇ UNVERIFIED |
| HFHycast Foundry LLC | Fairfield | IA | — | ◇ UNVERIFIED |
| HCHydro Composites, LLC | Stockdale | TX | — | ◇ UNVERIFIED |
| IHIac Huron (fka Lear Corp.) (0322010214) | Huron | OH | — | ◇ UNVERIFIED |
| ICId Castings Building Demolition | Noblesville | IN | — | ◇ UNVERIFIED |
| IPIngersoll-dresser Pump CO | Hastings | NE | — | ◇ UNVERIFIED |
| KCKansas Castings | Belle Plaine | KS | — | ◇ UNVERIFIED |
| KPKeystone Plastics INC | South Plainfield | NJ | — | ◇ UNVERIFIED |
| LBLee Brass Company | Anniston | AL | — | ◇ UNVERIFIED |
| LPLeisure Pools USA Trading | New Braunfels | TX | — | ◇ UNVERIFIED |
| LNLenco, Nlc INC. | Jackson | MO | — | ◇ UNVERIFIED |
| LCLiberty Casting CO (0121010003) | Delaware | OH | — | ◇ UNVERIFIED |
| LCLinamar Corporation | Alma | MI | — | ◇ UNVERIFIED |
| LTLineal Technologies INC | Rocky Mount | VA | — | ◇ UNVERIFIED |
| LRLmi Roto LLC | Lake Mary | FL | — | ◇ UNVERIFIED |
| LMLockheed Martin CORP - French Rd Fac | Utica | NY | — | ◇ UNVERIFIED |
| LSLone Star Casting & Machine Partners | Kilgore | TX | — | ◇ UNVERIFIED |
| MSMaca Supply CO | Springville | UT | — | ◇ UNVERIFIED |
| MPMadison Precision Products INC | Madison | IN | — | ◇ UNVERIFIED |
| MIMagotteaux INC | Pulaski | TN | — | ◇ UNVERIFIED |
| MPMansfield Plumbing Products | Henderson | TX | — | ◇ UNVERIFIED |
| MIMar-bal Incorporated | Cuba | MO | — | ◇ UNVERIFIED |
| MIMcc Intl INC | Cecil | PA | — | ◇ UNVERIFIED |
| MMMercury Marine | Saint Cloud | FL | — | ◇ UNVERIFIED |
| MCMetal Casting CO | Bristol | VA | — | ◇ UNVERIFIED |
| MTMetal Technologies, Inc., Ravenna Ductile Iron | Ravenna | MI | — | ◇ UNVERIFIED |
| MTMetal Technologies INC -three Rivers Gray Iron | Three Rivers | MI | — | ◇ UNVERIFIED |
| MVM&h Valve Company, a Division of Mcwane, LLC | Anniston | AL | — | ◇ UNVERIFIED |
| MMMinster Machine CO | Minster | OH | — | ◇ UNVERIFIED |
| MFMolded Fiber Glass Co/union City | Union City | PA | — | ◇ UNVERIFIED |
| MWMotor Wheel Commercial Vehicle Systems INC | Chattanooga | TN | — | ◇ UNVERIFIED |
| MWMotor Wheel LLC | Franklin | KY | — | ◇ UNVERIFIED |
| MRMountain Ridge Metals Inc/millersburg | Millersburg | PA | — | ◇ UNVERIFIED |
| MTM Tek Incorporated | Manchester | TN | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur | IL | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur | IL | — | ◇ UNVERIFIED |
| MCMuncie Casting CORP | Muncie | IN | — | ◇ UNVERIFIED |
| MMur-tex | Amarillo | TX | — | ◇ UNVERIFIED |
| NCNail City Bronze INC | Wheeling | WV | — | ◇ UNVERIFIED |
| NONational Oilwell Varco | Belton | TX | — | ◇ UNVERIFIED |
| NONational Oilwell Varco/tulsa Multiplex | Tulsa | OK | — | ◇ UNVERIFIED |
| NGNemak Glasgow Plant #1 | Glasgow | KY | — | ◇ UNVERIFIED |
| NINibco INC | Blytheville | AR | — | ◇ UNVERIFIED |
| NNNibco Nacogdoches Plant | Nacogdoches | TX | — | ◇ UNVERIFIED |
| NFNorthern Foundry | Hibbing | MN | — | ◇ UNVERIFIED |
| NINorthern Iron & Machine | Saint Paul | MN | — | ◇ UNVERIFIED |
| NPNta Precision Axle CORP | Carol Stream | IL | — | ◇ UNVERIFIED |
| OCO'brien Corp/cardinal Uhp | Saint Louis | MO | — | ◇ UNVERIFIED |
| OIOsco Industries, INC. New Boston Divisi (0773010180) | New Boston | OH | — | ◇ UNVERIFIED |
| OIOsco Industries INC Portsmouth Div | Portsmouth | OH | — | ◇ UNVERIFIED |
| OKO.s. Kelly Company (0812100276) | Springfield | OH | — | ◇ UNVERIFIED |
| PIPace Industries, INC. | Harrison | AR | — | ◇ UNVERIFIED |
| PIPandel INC | Cartersville | GA | — | ◇ UNVERIFIED |
| PMPeco Manufacturing | Clackamas | OR | — | ◇ UNVERIFIED |
| PCPella Corporation- Murray Operations | Murray | KY | — | ◇ UNVERIFIED |
| PFPentair Flow Technologies, LLC - Ashland Pump Plant (0303010175) | Ashland | OH | — | ◇ UNVERIFIED |
| PFPier Foundry | Saint Paul | MN | — | ◇ UNVERIFIED |
| PMPlant Maintenance Services - Pms St Gabriel Plant | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| PIPlastron Incorporated | City of Industry | CA | — | ◇ UNVERIFIED |
| PCPort City Metal Products | Muskegon | MI | — | ◇ UNVERIFIED |
| PMPrecision Metalsmiths INC. | Markesan | WI | — | ◇ UNVERIFIED |
 Precision Products Group, INC. | Apple Creek | OH | — | ◇ UNVERIFIED |
| PFProspect Foundry LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| QCQuaker City Castings (0215090009) | Salem | OH | — | ◇ UNVERIFIED |
| QCQuality Castings CO | Waukesha | WI | — | ◇ UNVERIFIED |
 Quality Metal Finishing | Byron | IL | — | ◇ UNVERIFIED |
| RPRane Precision Die Casting | Russellville | KY | — | ◇ UNVERIFIED |
| RIReckless Industries | Maryville | TN | — | ◇ UNVERIFIED |
| RIReckless Industries Mold Division LLC | Greenback | TN | — | ◇ UNVERIFIED |
| RAResrg Automotive Trim LLC | Morehead (rowan) | KY | — | ◇ UNVERIFIED |
| RHR H Sheppard CO INC | Hanover | PA | — | ◇ UNVERIFIED |
| RIRichmond Industries INC | Dayton | NJ | — | ◇ UNVERIFIED |
| RBRobert Bosch Automotive Steering LLC | Florence | KY | — | ◇ UNVERIFIED |
| RIRomac Industries | Sultan | WA | — | ◇ UNVERIFIED |
| RBRoyal Baths Manufacturing CO | Richland Hills | TX | — | ◇ UNVERIFIED |
| RBRoyal Baths Manufacturing Company | Clearwater | FL | — | ◇ UNVERIFIED |
| SOSawyer Oilfield Brownwood Facility | Brownwood | TX | — | ◇ UNVERIFIED |
| SCSika Corporation-greer Plant | Greer | SC | — | ◇ UNVERIFIED |
 Sioux City Foundry CO | South Sioux City | NE | — | ◇ UNVERIFIED |
| SASlw Automotive INC / Sallisaw Plt | Sallisaw | OK | — | ◇ UNVERIFIED |
| SASmp Automotive Systems Ala | Cottondale | AL | — | ◇ UNVERIFIED |
| SRS R Smith Manufacturing | Canby | OR | — | ◇ UNVERIFIED |
| SAStandard Alloys Port Arthur | Port Arthur | TX | — | ◇ UNVERIFIED |
| SUStarpipe USA Dba Sp Foundry / Sp Foundry | South Coffeyville | OK | — | ◇ UNVERIFIED |
