| FFFerro Fab INC | Rockingham | NC | — | ◇ UNVERIFIED |
| FAFh Ayer Mfg CO | Chicago Heights | IL | — | ◇ UNVERIFIED |
| FFibrebond | Edelstein | IL | — | ◇ UNVERIFIED |
| FLFischer Lime & Cement Garage | Memphis | TN | — | ◇ UNVERIFIED |
| FLFisher & Ludlow Inc/saegertown | Saegertown | PA | — | ◇ UNVERIFIED |
| FTFisher Tank CO | Chester | PA | — | ◇ UNVERIFIED |
| FSFlexible Steel Lacing CO | Downers Grove | IL | — | ◇ UNVERIFIED |
| FMFlorida Metal Products | Jacksonville | FL | — | ◇ UNVERIFIED |
| FIFlotech INC - Tube Services | Jacksonville | FL | — | ◇ UNVERIFIED |
| FFFmc Foodtech | Lakeland | FL | — | ◇ UNVERIFIED |
| FSFmt Shipyard & Repair LLC - Universal Services & Associates | Belle Chasse | LA | — | ◇ UNVERIFIED |
| FPForest Park Facility | Dallas | TX | — | ◇ UNVERIFIED |
| FCFormaloy CORP | Morton | IL | — | ◇ UNVERIFIED |
| FMFormer Mrp LLC ( Bldg-2 ( Njdep Isra Case# 20160039)) | South Plainfield | NJ | — | ◇ UNVERIFIED |
| FFFossil Fuel Energy Services | Fort Lupton | CO | — | ◇ UNVERIFIED |
| FPFox Pools Parts Mfg | York | PA | — | ◇ UNVERIFIED |
| FIFralo Industries INC | Erie | PA | — | ◇ UNVERIFIED |
| FCFranke Consumer Products INC - Ruston Facility | Ruston | LA | — | ◇ UNVERIFIED |
| FCFranke Contract Group | Fayetteville | TN | — | ◇ UNVERIFIED |
| FLFriction LLC | Greenwood | MS | — | ◇ UNVERIFIED |
| FSFritz Structural Steel INC | Valley Head | AL | — | ◇ UNVERIFIED |
| FGFrontier Gratings, LLC | Fort Payne | AL | — | ◇ UNVERIFIED |
| FRFront Range Steel INC | Wellington | CO | — | ◇ UNVERIFIED |
| FEFulton Equipment | Toledo | OH | — | ◇ UNVERIFIED |
| FMFwm Mechanical INC | Taylor | LA | — | ◇ UNVERIFIED |
| GFGadsden Fabrication INC | Gadsden | AL | — | ◇ UNVERIFIED |
| GIGa Industries, Mars Facility Stormwater | Mars | PA | — | ◇ UNVERIFIED |
| GIGalbreath, Incorporated | Mansfield | TX | — | ◇ UNVERIFIED |
| GAGalfab Acquisitions, LLC | Winamac | IN | — | ◇ UNVERIFIED |
| GSGambone Steel Company, INC. | Eagleville | PA | — | ◇ UNVERIFIED |
| GLGammalux Lighting Systems Incorporated | San Dimas | CA | — | ◇ UNVERIFIED |
| GIGarbe Iron Works INC | Aurora | IL | — | ◇ UNVERIFIED |
| GMGardner Mfg CO | Horicon | WI | — | ◇ UNVERIFIED |
| GRGa Rodgers Incorporated | Fall River | MA | — | ◇ UNVERIFIED |
| GSGates & Son | Denver | CO | — | ◇ UNVERIFIED |
| GCGateway Company-graham | Saint Louis | MO | — | ◇ UNVERIFIED |
| GPGateway Precision Technologies LLC | Covington | KY | — | ◇ UNVERIFIED |
| GDGator Dock and Marine | Sanford | FL | — | ◇ UNVERIFIED |
| GBG B Enterprises Arlington | Arlington | WA | — | ◇ UNVERIFIED |
| GEGem Equipment & Mfg | Roanoke | IL | — | ◇ UNVERIFIED |
| GFGem Fabrication | Renton | WA | — | ◇ UNVERIFIED |
| GIGencor Industries INC | Marquette | IA | — | ◇ UNVERIFIED |
| GAGeneral Atomics Ems Division, Tupelo | Shannon | MS | — | ◇ UNVERIFIED |
| GEGeneral Electric Company | Edmore | MI | — | ◇ UNVERIFIED |
| GFGeneral Fabricators INC - New Iberia Facility | New Iberia | LA | — | ◇ UNVERIFIED |
| GSGeneral Steel Products | Everett | MA | — | ◇ UNVERIFIED |
| GFGenesee Finishing INC | North Chili | NY | — | ◇ UNVERIFIED |
| GOGe Oec Medical Systems | Warsaw | IN | — | ◇ UNVERIFIED |
| GAGerdau Ameristeel - Jackson Reinforcing | Jackson | TN | — | ◇ UNVERIFIED |
| GRGerdau Reinforcing Steel | Napa | CA | — | ◇ UNVERIFIED |