| BPBta Plant #3 | Wellford | SC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CCCadillac Culvert INC | Cadillac | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
 Cal Sierra Pipe LLC | Stockton | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CFCarbery Fabrication Company, INC. | Odessa | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CECb&i El Dorado | El Dorado | AR | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CBC & B Piping (w), INC. | Leeds | AL | Fabricated Metal Product Manufacturing332812 | — | ◇ UNVERIFIED |
| CWCharps Welding & Fabricating INC | Clearbrook | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CIChart INC | Fremont | CA | Fabricated Metal Product Manufacturing332996 | — | ▲ REPORTED CLOSED |
| CTChicago Tube and Iron Company | Locust | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CFCianbro Fab & Coating CORP (bangor) | Bangor | ME | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CSCK Supply, LLC | Jal | NM | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CAClarke's Allied INC. | Shreveport | LA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CSClock Spring / Nri | Centennial | CO | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CPCoflexip Products Division | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CPColumbia Place Associates, LLC | Syracuse | NY | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CPCommercial Piping & Fabricators, INC | Tar Heel | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CMConnelly Mechanical INC. | Springfield | MO | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| CIConsecon INC | Gardena | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CCCrane Chempharma & Energy CORP. | Marion | NC | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CCCtp Corporation Aka Commercial Tube Processing | Indianapolis | IN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CPCustom Pipe & Coupling Co., INC. | Lubbock | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| CPCustom Pipe & Coupling Co., INC. | Fresno | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DBDale Brisco INC. | Fowler | CA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| DLDaspit, LLC | Saint Bernard | LA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DPDavidson Pipe Supply CO INC | Brooklyn | NY | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DIDeacon Industrial Supply Co., INC. | Harleysville | PA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DTDetroit Tube Products LLC | Detroit | MI | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DNDistribution Now | Carson | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DMDixie Metal Products LLC | Memphis | TN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DPD-s Pipe & Steel Supply, LLC | Baltimore | MD | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DBDura Bond Coating Incorporated | Mckeesport | PA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DIDuraslot INC. | Hudson Falls | NY | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DED&W Envision LLC | Clinton Township | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| DPDynamic Piping Products, LLC | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EBEagle Burgmann Ejs | Santee | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EFEdsco Fasteners | Waterloo | IN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EWEh Wachs CO. | Houston | TX | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EMElectrolurgy Manufacturing INC | Irvine | CA | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EPElkhart Products Corporation | Westville | OK | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EIEmco INC Stamped Prods | Gadsden | AL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| ESEnergy Steel CORP Dba O'brien Iron Works | Concord | CA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| ETEnergy Transfer | Carrollton | OH | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| EIEnerpipe INC. | New London | WI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EIErin Industries | Walled Lake | MI | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| EFESA Fabrication LLC | Phoenix | AZ | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| FMFABA Machine Services, LLC | Columbus | OH | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| FMFABA Machine Services, LLC | Blacklick | OH | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| FTFabricated Tube Products | Carrollton | TX | Fabricated Metal Product Manufacturing332112 | — | ◇ UNVERIFIED |
| FSFahrenheit Services Air Conditioning & Refrigeration inc | Miami | FL | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
| FIFastest INC | Roseville | MN | Fabricated Metal Product Manufacturing332996 | — | ◇ UNVERIFIED |
