| TMTazewell Machine Works INC | Pekin | IL | 20–99 | ◐ LIKELY ACTIVE |
| TCTenaris Coiled Tubes - Downhole Center | Houston | TX | 100–499 | ◐ LIKELY ACTIVE |
| TMTenaris Midland Service Center | Midland | TX | 100–499 | ◐ LIKELY ACTIVE |
| THTexas Hydraulics | Temple | TX | 100–499 | ◐ LIKELY ACTIVE |
| TMTri-city Mechanical Contractors, INC. | Greensboro | NC | 20–99 | ◐ LIKELY ACTIVE |
| TFTrio Foundry Inc | Montgomery | IL | 20–99 | ◐ LIKELY ACTIVE |
| TMTru-line Manufacturing Company | Decatur | AL | 20–99 | ◐ LIKELY ACTIVE |
| TUTS Upsetting and Threading | Houston | TX | 100–499 | ◐ LIKELY ACTIVE |
| TDTubacex Durant INC. | Durant | OK | 20–99 | ◐ LIKELY ACTIVE |
| TBTube Bending Technology, LLC | Apple Valley | CA | — | ◐ LIKELY ACTIVE |
| TFTube Fabrication Industries, INC | Logansport | IN | 20–99 | ◐ LIKELY ACTIVE |
| TTTulsa Tube Bending CO INC | Tulsa | OK | 20–99 | ◐ LIKELY ACTIVE |
| VUVam USA | Houston | TX | 100–499 | ◐ LIKELY ACTIVE |
| VIVeridiam, INC. | El Cajon | CA | — | ◐ LIKELY ACTIVE |
| VOViega Ohio | Mantua | OH | 20–99 | ◐ LIKELY ACTIVE |
| WCWabash Castings Incorporated | Wabash | IN | 100–499 | ◐ LIKELY ACTIVE |
| WSWestbrook Sales & Distributing | Houston | TX | 20–99 | ◐ LIKELY ACTIVE |
| WSWestern Steel, INC. | Hueytown | AL | 20–99 | ◐ LIKELY ACTIVE |
| WWWestern Waterworks Supply | Nampa | ID | 20–99 | ◐ LIKELY ACTIVE |
| WIWiltew INC | Semmes | AL | 20–99 | ◐ LIKELY ACTIVE |
| BOBwxt Ordnance Tennessee, INC. | Jonesborough | TN | — | ◐ LIKELY ACTIVE |
 Advance Bronze, INC. | Lodi | OH | — | ◇ UNVERIFIED |
| AAAdvanced Airfoil Components | Gibsonton | FL | — | ◇ UNVERIFIED |
| ACAlaska Copper and Brass | Seattle | WA | — | ◇ UNVERIFIED |
| AAAlum Alloys Foundry | Sinking Spring | PA | — | ◇ UNVERIFIED |
| AAAmg Aluminum North America LLC | Robards | KY | — | ◇ UNVERIFIED |
| AIAnvil Intl INC | Henderson | TN | — | ◇ UNVERIFIED |
| ARArk Ramos Foundry & Manufacturing CO INC | Oklahoma City | OK | — | ◇ UNVERIFIED |
| AFArrow Fabricated Tubing | Garland | TX | — | ◇ UNVERIFIED |
| APAtek Precision Castings | New Hampton | IA | — | ◇ UNVERIFIED |
| ATAztec Tubular Products | Crowley | TX | — | ◇ UNVERIFIED |
| BBBall Brass & Aluminum Foundry | Auburn | IN | — | ◇ UNVERIFIED |
| BBBeckett Bronze CO. INC. | Muncie | IN | — | ◇ UNVERIFIED |
| BMBombardier Motor Corporation of America - Spruce Pine | Spruce Pine | NC | — | ◇ UNVERIFIED |
| BTBrass Tech INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| BMBremer Manufacturing | Elkhart Lake | WI | — | ◇ UNVERIFIED |
 Bunting Bearings CORP | Portage | MI | — | ◇ UNVERIFIED |
| CDC & D Valve Manufacturing CO | Oklahoma City | OK | — | ◇ UNVERIFIED |
| CFCentury Foundry INC | Muskegon Hts | MI | — | ◇ UNVERIFIED |
| CFCoastal Foundry CO | Houston | TX | — | ◇ UNVERIFIED |
| CColdspring | Cold Spring | MN | — | ◇ UNVERIFIED |
| CIConbraco Industries INC Apollo Assemble Plant | Pageland | SC | — | ◇ UNVERIFIED |
| CMConsolidated Metco INC | Monroe | NC | — | ◇ UNVERIFIED |
| CPConsolidated Precision Products - Minneapolis | Bloomington | MN | — | ◇ UNVERIFIED |
| CCCrane Chempharma & Energy CORP. Resistoflex | Marion | NC | — | ◇ UNVERIFIED |
| CSCronimet Specialty Metals USA INC. | Wheatland | PA | — | ◇ UNVERIFIED |
| CHCsm Horvath Ledgebrook - Brost Foundry CO | Mansfield | OH | — | ◇ UNVERIFIED |
| CDCtp, Division of Tue Processing | Indianapolis | IN | — | ◇ UNVERIFIED |
| CACustom Alloy CORP | High Bridge | NJ | — | ◇ UNVERIFIED |
| DCDuro Cast INC | Somonauk | IL | — | ◇ UNVERIFIED |
| EPElkhart Products CORP | Elkhart | IN | — | ◇ UNVERIFIED |
| EFEpcor Foundries | Cincinnati | OH | — | ◇ UNVERIFIED |
| EFExcel Foundry & Machine a Dba of Flsmidth INC | Pekin | IL | — | ◇ UNVERIFIED |
| FFFlury Foundry CO - Lancaster Facility | Lancaster | PA | — | ◇ UNVERIFIED |
| FMFrancis Manufacturing Co-francis Manufacturing CO | Russia | OH | — | ◇ UNVERIFIED |
| FPFs Precision Tech | Compton | CA | — | ◇ UNVERIFIED |
| GAGeneral Aluminum (1667070012) | Ravenna | OH | — | ◇ UNVERIFIED |
| GAGeneral Aluminum Manufacturing CO | Conneaut | OH | — | ◇ UNVERIFIED |
| GEGeneral Electric Steam Turbine Generator Global | Schenectady | NY | — | ◇ UNVERIFIED |
| GIGerlin INC | Carol Stream | IL | — | ◇ UNVERIFIED |
| GPGrant Prideco LP | Navasota | TX | — | ◇ UNVERIFIED |
| HIHarvey Industries LLC | Wabash | IN | — | ◇ UNVERIFIED |
| HCHowmet Castings Plant 10 | Whitehall | MI | — | ◇ UNVERIFIED |
| HPHubbell Power Systems Leeds | Leeds | AL | — | ◇ UNVERIFIED |
| HPHydril Premium Connections | Houston | TX | — | ◇ UNVERIFIED |
| KFKeystone Foundry Div | Erie | PA | — | ◇ UNVERIFIED |
| KSKoppel Steel CORP Baytown Plant | Baytown | TX | — | ◇ UNVERIFIED |
| LMLma Mcloughlin Annex | Portland | OR | — | ◇ UNVERIFIED |
| MFMartin Foundry CO | Kansas City | MO | — | ◇ UNVERIFIED |
| MDMbaf - Division of G&w Electric | Blue Island | IL | — | ◇ UNVERIFIED |
| MBMchenry Brass INC | Mc Henry | KY | — | ◇ UNVERIFIED |
| MTMelling Tool Company | Battle Creek | MI | — | ◇ UNVERIFIED |
| MCMueller CO | Decatur | IL | — | ◇ UNVERIFIED |
| MAMuskegon Aluminum Bronze F | Muskegon | MI | — | ◇ UNVERIFIED |
| NANov Ameron Tulsa Pole Products Welding & Fabrication | Tulsa | OK | — | ◇ UNVERIFIED |
| ODO & D Manufacturing | White Oak | TX | — | ◇ UNVERIFIED |
 Pcc Structurals INC. Lsbs | Portland | OR | — | ◇ UNVERIFIED |
| PUPenn Union Corp/edinboro | Edinboro | PA | — | ◇ UNVERIFIED |
| PPermacast | Export | PA | — | ◇ UNVERIFIED |
| PPPerma Pipe - a Subsidary of Mfri, INC. | Lebanon | TN | — | ◇ UNVERIFIED |
| PAPrecision Aluminum - Foundry Division | Rock Island | IL | — | ◇ UNVERIFIED |
| RNRolls-royce Naval Marine INC | Pascagoula | MS | — | ◇ UNVERIFIED |
| SASeacast Arlington LLC | Arlington | WA | — | ◇ UNVERIFIED |
| SESec Energy Products and Services LP | Houston | TX | — | ◇ UNVERIFIED |
| SCSelkirk CORP Heat-fab | Turners Falls | MA | — | ◇ UNVERIFIED |
| SNShaw Naptech INC | Clearfield | UT | — | ◇ UNVERIFIED |
| SAShipston Aluminum Technologies | Fruitport | MI | — | ◇ UNVERIFIED |
 Skyline Steel Llc-iuka | Iuka | MS | — | ◇ UNVERIFIED |
| SVSloan Valve CO - Augusta Division | Augusta | AR | — | ◇ UNVERIFIED |
| SMSpinco Metal Products INC. | Newark | NY | — | ◇ UNVERIFIED |
| SFSpm Flow Control | Fort Worth | TX | — | ◇ UNVERIFIED |
| SSsb1 | Milwaukie | OR | — | ◇ UNVERIFIED |
| SIStar Iron Works | Big Run | PA | — | ◇ UNVERIFIED |
| SCSupreme Casting, INC. | Milwaukee | WI | — | ◇ UNVERIFIED |
| TAT and L Foundry INC / T and L Foundry | Glenpool | OK | — | ◇ UNVERIFIED |
| TFTeam Fabricators Metal Fabrication | Port Arthur | TX | — | ◇ UNVERIFIED |
| TBThe Bronze Craft Corporation | Nashua | NH | — | ◇ UNVERIFIED |
| TTTooling Technology | Fort Loramie | OH | — | ◇ UNVERIFIED |
| VUVam USA | Houston | TX | — | ◇ UNVERIFIED |
| VUVam USA LLC | Youngstown | OH | — | ◇ UNVERIFIED |
