| DSDdm Steel Construction Limited Liability Company | Vineland | NJ | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| DIDeangelis Iron Works INC | South Easton | MA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| DSDelong S-jefferson City | Jefferson City | MO | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| DMDixie Metal Products, Inc. | Ocala | FL | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| DID.m.f., INC. | Tuscaloosa | AL | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
Dubose National Energy Services INC #2 | Clinton | NC | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
Dynamic Fabrication INC | Beaver Dam | KY | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| ECEads Cooling Solutions, LLC | Catoosa | OK | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| EIEcodynamics INC | Monte Vista | CO | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| ESEllis Steel Company, Inc. Structural | West Point | MS | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| ESEncore Steel, INC. | Phoenix | AZ | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| EMEndres Manufacturing CO | Waunakee | WI | Fabricated Metal Product Manufacturing332310 | 100-499 | ◐ LIKELY ACTIVE |
| EFEngineered Fluid INC | Centralia | IL | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| ESESP Specialties & Fabrications, Inc. | Folkston | GA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| EREverlast Roofing Inc. - Bridgton ME | Bridgton | ME | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| FIFabricators, INC. | Sioux City | IA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| FWFab Weld Steel, INC. | Randolph | AL | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| FIFirstharvest, INC. Dba Montana Steel Industries | Belgrade | MT | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| FIFlex-Strut, Inc. | Warren | OH | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| FSFord Steel, LLC | Porter | TX | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| FAForge and Float Works LLC | Port Townsend | WA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| FFFortress Form INC | New Berlin | WI | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| FMFranklin Machine Enterprise, LLC | Franklin | NC | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| FIFrazier Industrial Company | Dyersburg | TN | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| FMFwm Mechanical INC - Minden Facility | Minden | LA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| FIFwt, INC. | Fort Worth | TX | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| GCGADST Contech Engineered Solutions LLC | Fort Payne | AL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| GMGayle Manufacturing Company - Nampa, ID | Nampa | ID | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| GJGeorge Jue Manufacturing Company, INC. | Paramount | CA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| GIGilbert Industries | Sparta | MO | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| GSGipson Steel, INC. | Meridian | MS | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| GBGoudy Brothers Boiler CO INC | Kokomo | IN | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| GIGrand Isle Shipyard INC | Franklinton | LA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| GFGrossi Fabrication INC | Hughson | CA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| GSG & S Manufacturing LLC | Courtland | MN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| HSHaberle Steel INC. | Souderton | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| HSHd Supply Construction Supply LTD Fl133-6427 | Tampa | FL | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HMHenard Metal Fabricators, INC. | Kingsport | TN | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HSHercules Steel CO INC | Fayetteville | NC | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HBHersherberger Bros Welding, LLC | Las Vegas | NV | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| HBHohmann & Barnard - Alabama | Trussville | AL | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| HBHohmann & Barnard (Utah) | West Valley City | UT | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| HMHorizontal Machining & Mfg. Inc. | Huron | SD | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| HSHoward Steel LLC | Davenport | IA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HEHunter Engineering Company, Durant | Durant | MS | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HFHurtt Fabricating Corp | Marceline | MO | Primary Metal Manufacturing331111 | 20-99 | ◐ LIKELY ACTIVE |
| HSHusker Steel | Columbus | NE | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| IIIcf Industries, INC. | Pleasant Hill | MO | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
Ideal Manufacturing Plant | Webster | NY | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| IIIgs Industries INC | Meadow Lands | PA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |