| FMFiberglass Marine Products | Shelton | WA | — | ◇ UNVERIFIED |
| FSFiberglass Structures | Laurel | MT | — | ◇ UNVERIFIED |
| FTFiber Tech Engineering INC | Escondido | CA | — | ◇ UNVERIFIED |
| FIFibertec Incorporated | Bridgewater | MA | — | ◇ UNVERIFIED |
| FNFicosa North America | Crossville | TN | — | ◇ UNVERIFIED |
| FNFicosa North America Corporation | Berne | IN | — | ◇ UNVERIFIED |
| FFilmquest | Bolingbrook | IL | — | ◇ UNVERIFIED |
| FEFiltrona Extrusion | Northborough | MA | — | ◇ UNVERIFIED |
| FFFinal Finish-kansas City | Kansas City | MO | — | ◇ UNVERIFIED |
| FMFinished Metals INC | Chicago | IL | — | ◇ UNVERIFIED |
| FTFinish Tech | Haverhill | MA | — | ◇ UNVERIFIED |
| FUFinish Unlimited Incorporated | Dracut | MA | — | ◇ UNVERIFIED |
| FUFinish Unlimited Incorporated | Dracut | MA | — | ◇ UNVERIFIED |
| FIFintech INC | Denver | CO | — | ◇ UNVERIFIED |
| FBFirestone Building Products | North Las Vegas | NV | — | ◇ UNVERIFIED |
| FBFirestone Building Products CO | Denver | CO | — | ◇ UNVERIFIED |
| FHFisher Hamilton INC Main Plant | Two Rivers | WI | — | ◇ UNVERIFIED |
| FSFive Star Coatings Group INC | Twin Lakes | WI | — | ◇ UNVERIFIED |
| FIFleetwood Industries INC | Shoemakersville | PA | — | ◇ UNVERIFIED |
| FCFlexcon CO INC | Fridley | MN | — | ◇ UNVERIFIED |
| FCFlexcon Company INC - North Branford | North Branford | CT | — | ◇ UNVERIFIED |
| FFFlexible Flyer Acquisition | West Point | MS | — | ◇ UNVERIFIED |
| FPFlex Products INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| FTFlex Technologies INC | Lafayette | TN | — | ◇ UNVERIFIED |
| FTFlint Trading, INC. | Thomasville | NC | — | ◇ UNVERIFIED |
| FPFlorida Production Engineering (0819100218) | New Madison | OH | — | ◇ UNVERIFIED |
| FIFluoro-seal INC | West Chicago | IL | — | ◇ UNVERIFIED |
| FIFluoro-seal INC | Forest Park | GA | — | ◇ UNVERIFIED |
| FCForemost Coating CO. INC. | Gardena | CA | — | ◇ UNVERIFIED |
| FIFormations INC | Portland | OR | — | ◇ UNVERIFIED |
| F5Former 5r Processors - 5 Semi Trailers | Ladysmith | WI | — | ◇ UNVERIFIED |
| FIFormer / Id No Longer Used Viaflex | Sioux Falls | SD | — | ◇ UNVERIFIED |
| FRFormer Ranews-coffeyville | Coffeyville | KS | — | ◇ UNVERIFIED |
| FPFortis Plastics LLC | Carlyle | IL | — | ◇ UNVERIFIED |
| FOFort Orange Paper CO. | Castleton on Hudson | NY | — | ◇ UNVERIFIED |
| FWFort Wayne Liquid Coatings INC | Fort Wayne | IN | — | ◇ UNVERIFIED |
| FWFort Wayne Liquid Coatings INC | Fort Wayne | IN | — | ◇ UNVERIFIED |
| FFFounders Fiberglass LLC | Park Rapids | MN | — | ◇ UNVERIFIED |
| FCFoxfire Coatings | Gloucester | MA | — | ◇ UNVERIFIED |
| FIFp International - Hopkinsville, Ky | Hopkinsville | KY | — | ◇ UNVERIFIED |
| FIFp International Packaging | Auburn | MA | — | ◇ UNVERIFIED |
| FAFranklin Aluminum Dba/jac Products | Franklin | GA | — | ◇ UNVERIFIED |
 Franklin Fixtures INC | Wareham | MA | — | ◇ UNVERIFIED |
| FIFrazier Industrial Company | Pocatello | ID | — | ◇ UNVERIFIED |
| FIFreedman Industrial Salvage INC | Stanton | CA | — | ◇ UNVERIFIED |
| FEFresh Express | Streamwood | IL | — | ◇ UNVERIFIED |
| FTFrontier Tank Center INC | Richfield | OH | — | ◇ UNVERIFIED |
| FRFront Range Fabrications INC | Denver | CO | — | ◇ UNVERIFIED |
| FRFront Range Tooling INC | Boulder | CO | — | ◇ UNVERIFIED |
| FWFrp Workshop of Polk County INC | Winter Haven | FL | — | ◇ UNVERIFIED |
