| BIBestweld INC | Pottstown | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
| CPCore Pipe Products INC | Sanford | FL | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
| NXNov Xl Systems Beaumont | Beaumont | TX | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
Piping Enterprise Company, INC. | Sand Springs | OK | Fabricated Metal Product Manufacturing332410 | 20-99 | ● ACTIVE |
Sales & Engineering INC | Livonia | MI | Fabricated Metal Product Manufacturing332710 | 20-99 | ● ACTIVE |
Steel Forgings, INC. | Shreveport | LA | Primary Metal Manufacturing331210 | 20-99 | ● ACTIVE |
Allegheny Valve & Coupling, INC. | Warren | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
Custom Marine INC | Neenah | WI | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
Hollaender Manufacturing CO | Cincinnati | OH | Fabricated Metal Product Manufacturing332323 | 20-99 | ● ACTIVE |
| LMLeonhardt Manufacturing CO | Hanover | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
The Philadelphia Pipe Bending CO | Philadelphia | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
The Pipe Line Development Company | Strongsville | OH | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
| TSTube Specialties, INC. | Tempe | AZ | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
| TTTulsa Tube Bending CO INC | Tulsa | OK | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
| AFAccu-fire Fabrication, INC | Morrisville | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ● ACTIVE |
| CFCampbell Fittings INC | Boyertown | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| NENew England Union Co., INC. | West Warwick | RI | Primary Metal Manufacturing331528 | 20-99 | ◐ LIKELY ACTIVE |
| PFPierce Fittings | Eugene | OR | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| RPRovanco Piping System Inc-treatment Plant | Joliet | IL | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| SFSpirit Fabs INC | Wrightstown | WI | Fabricated Metal Product Manufacturing332310 | 20-99 | ◐ LIKELY ACTIVE |
| TDTubacex Durant INC. | Durant | OK | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VTVallourec Tube-alloy, LLC | Houma | LA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| 1N105861 - Nelson Global Products Incorporated | Fort Wayne | IN | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| BABaum America CORP | Charleston | WV | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| BPBlue Patriot Fab | Omaha | NE | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CICalpipe Industries | Santa Paula | CA | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| DWDresser Water, LLC | Olean | NY | Fabricated Metal Product Manufacturing332919 | 20-99 | ◐ LIKELY ACTIVE |
| MEMetalcraft Enterprises INC | New Haven | MO | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| MAMid Atlantic Fabrication | Fairmont | WV | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| RRRb Royal Industries INC | Fond Du Lac | WI | Fabricated Metal Product Manufacturing332721 | 20-99 | ◐ LIKELY ACTIVE |
| SSSeah Steel Use LLC P3 | Houston | TX | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| STSf Tube, INC | Hayward | CA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| TMTexas Manufacturing Company | Whitesboro | TX | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| TMTru-line Manufacturing Company | Decatur | AL | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| VTVallourec Tube Alloy | Houston | TX | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| WSWestern Steel, INC. | Hueytown | AL | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| WIWiltew INC | Semmes | AL | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
| 1P129472 - Pro-fabrication, INC. | Concord | NC | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| 1T131031 - Tri-city Mechanical Contractors, INC. | Greensboro | NC | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| 1H134095 - Hydro Tube Enterprises, INC. | Sanford | NC | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| 9F96402 - Fraser Steel Company | Albertville | MN | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| 9A97283 - Arctic Fox INC | Delano | MN | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| ATAllegan Tubular Products Inc. (Main) | Allegan | MI | Fabricated Metal Product Manufacturing332913 | 20-99 | ◐ LIKELY ACTIVE |
| AVAllegheny Valve and Coupling Company INC. | Warren | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| BPBergen Pipe Supports | Donora | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| BPBlue Patriot Fab | Omaha | NE | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| CPC&B Piping (West), Inc. | Gilbert | AZ | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| CBCrest Bending, INC. | New Washington | OH | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| CCCryogenic Construction INC. | Mingo Junction | OH | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| CPCustom Pipe & Fabrication, Inc. / Clovis | Clovis | NM | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |