| BPBilski Pipe Yard | Brenham | TX | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| BMBMT Masury | Masury | OH | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BDBohn & Dawson, Inc. | St. Louis | MO | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| BDBohn & Dawson, Inc. | Saint Louis | MO | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| BMBri-Steel Manufacturing LLC | Enid | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BLBuffindustries LLC | American Falls | ID | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| BMBull Moose Tube Elkhart | Elkhart | IN | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| BPBurlington Plant | Saginaw | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CGCasa Grande Bull Moose Industries | Casa Grande | AZ | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CPCentric Pipe - Bossier City | Bossier City | LA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CCCherokee Culvert Company, Inc. | Macon | GA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CTCincinnati Tool Steel Company | Rockford | IL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CClearwater | Clearwater | FL | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| CTCleveland-Cliffs Tubular Components - Columbus | Columbus | IN | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CTCleveland-Cliffs Tubular Components - Walbridge | Walbridge | OH | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CColumbia | Columbia | MO | Primary Metal Manufacturing331210 | 500+ | ◐ LIKELY ACTIVE |
| CSCooper Standard Surgoinsville | Surgoinsville | TN | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CHCoreWorks Heat Exchanger, LLC | Waller | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CCorporate | Jefferson City | MO | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| CFCortec Fluid Control | Houma | LA | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CMCortec Manifold Systems | Port Allen | LA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CTCsm Tube USA INC. | Elk Grove Village | IL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| EMElite Machining Services LLP | Winnemucca | NV | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| EEvansville | Evansville | WI | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| EAEXL Acquisition LLC | North Kansas City | MO | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| FUFencing Unlimited LLC | Bosque Farms | NM | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| FSField Services Lafayette | Lafayette | LA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| FSfischer Stainless Steel Tubing USA | Manchester | TN | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| GGibraltar | Burnet | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| GIGreenbelt International, LLC | Miami | FL | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| GGGSC - Groundworks Supply Chain | Columbia | SC | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| GGGSC - Groundworks Supply Chain Frontier | Olathe | KS | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| GSGulf States Tube LLC | Brookshire | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| HTHanna Tuscaloosa | Tuscaloosa | AL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| HHavana | Havana | IL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| HEHofmann Eau Claire Plant | Eau Claire | MI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| HEHouston Elbow | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| ITIndependence Tube Corporation | Birmingham | AL | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JFJd Fields Hdm Pipe | Houston | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JCJefferson City | Jefferson City | MO | Chemical Manufacturing325611 | 500+ | ◐ LIKELY ACTIVE |
| JPJindal Pipe USA Inc | Baytown | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JTJindal Tubular USA llc | BayStlouis | MS | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| JMJ&L Manufacturing | Marshall | MI | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| JSJm Steel, Pa | Leetsdale | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| KFKeener Farm One, LLC | Connersville | IN | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| KIKeyhole Industrial Welding Services, LLC | Decatur | AL | Primary Metal Manufacturing331210 | — | ▲ REPORTED CLOSED |
| KWKey West Welding and Fabrication, INC. | Key West | FL | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| KDKinedyne DBA ELT | Orchard Park | NY | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| LJLock Joint Tube Texas | Temple | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| LPLonghorn Plant | Fort Worth | TX | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |