| 1B128071 - Batt Fabricators, INC | Greensboro | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 1A129154 - Anson Mechanical Piping, INC. | Charlotte | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 1T129161 - Tube Specialties Co., INC. | Statesville | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 1R132849 - Rock Hill Industrial Piping - Fabrication, INC. | Charlotte | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 3W317708332 - Wolf Industries INC | Portland | OR | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 3T317709732 - Tube Forgings of America INC | Portland | OR | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| 3C317714717 - Custom Pipe & Coupling CO INC | Woodburn | OR | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 3T317721542 - Tubular Solutions INC | Portland | OR | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 5N57170 - National Chimney Kentucky LLC Dba Magnaflex | Mount Sterling | KY | Nonmetallic Mineral Product Manufacturing327123 | — | ◇ UNVERIFIED |
| 6L69533 - Leonhardt Pipe - Supply INC | Blackstock | SC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 6A69731 - American Mechanical - Piping INC | Cheraw | SC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 7C70044 - Commercial and Industrial Piping | Quinby | SC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
 92065 - Truenorth Steel INC | Saint Paul | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9N92272 - Northern Horizons INC | Solway | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9T92703 - Tube Products Corporation | Burnsville | MN | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| 9A93246 - Apn INC | Caledonia | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9F93974 - Flour City Bending INC | Big Lake | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9F94296 - Fastest INC | Saint Paul | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9F94829 - Ferguson Fire - Fabrication INC | Minneapolis | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9D95099 - Diversico Industries, INC. | Minneapolis | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9B95162 - Bendtec INC | Duluth | MN | Fabricated Metal Product Manufacturing332313 | — | ◇ UNVERIFIED |
| 9M96607 - M-d Welding LLC | Minneapolis | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9S97623 - Sps Companies INC Dba Pipe Fabricators | Osseo | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| 9L97628 - Lincoln Industries of Minnesota INC | Pine Island | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APAccord Pipe Fabricators INC. | Jamaica | NY | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APAdvance Pipe Bending | Huntington Park | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ATAdvance Tube Engineering | Huntington Beach | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AJAj & J Engineering & Precision Machine | Livermore | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APAlbany Pipe & Nipple Manufacturing, INC. | Green Island | NY | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ATAllegan Tubular Prod INC | Allegan | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APAll Pipe Works, Inc | Bluffdale | UT | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ASAll Star Threading | Crosby | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AFAlternative Fire Protection Services | Lake Elsinore | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APAmerican Pipe Bending & Fabrication CO. INC. | Somerset | NJ | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APAmerican Pipe Bending INC. | Tulsa | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| APApex Piping Systems, INC. | Wilmington | DE | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ALArlington Lanes | Riverside | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AIArrowhead Industries INC | Afton | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AFAsap Fabrication INC. | Plant City | FL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AFAsc-es: Federalsburg | Federalsburg | MD | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ARAssociated Rubber & Mechanical INC | Magna | UT | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AIAtkore International | Harvey | IL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| AFAtlantic Fabrication and Design, LLC | Oklahoma City | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BCBaker Coupling CO INC | Vernon | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BPBhm Pipe & Supply, INC | Crosby | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BIB.j.r.e.o. INC. | West Elizabeth | PA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BRBlue Ridge Machine & Electrical Contractors INC | Westminster | SC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BTBoomerang Tube, LLC | Liberty | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BMBorusan Mannesmann Pipe USA | Baytown | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| BEBrunton Enterprises | Universal City | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
