| FSFinkles Studio | Rockport | TX | — | ◇ UNVERIFIED |
| FSFino's Screen & Aluminum Company | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| FIFin-x, INC | Owasso | OK | — | ◇ UNVERIFIED |
| FRFior Realty | Agawam | MA | — | ◇ UNVERIFIED |
 Fireblast Global INC Dba Fireblast 451 INC | Murrieta | CA | — | ◇ UNVERIFIED |
| FAFirefly Automatix INC | North Salt Lake | UT | — | ◇ UNVERIFIED |
| FFFireside Fabrication LLC | Thomson | GA | — | ◇ UNVERIFIED |
| FHFirst Heating & Cooling LLC | Bridgeport | CT | — | ◇ UNVERIFIED |
| FHFirst Heating & Cooling LLC | New Canaan | CT | — | ◇ UNVERIFIED |
| FPFirst Process Steel, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| FQFirst Quality Machine, INC. | Athens | GA | — | ◇ UNVERIFIED |
| FRFirst Rate Industries, LTD | Saint Marys | OH | — | ◇ UNVERIFIED |
| FSFirst Source Fabricating, Inc. | Cincinnati | OH | — | ◇ UNVERIFIED |
| FTFirst Tracks, LLC | Reno | NV | — | ◇ UNVERIFIED |
| FIFischer Industries, INC. | Mequon | WI | — | ◇ UNVERIFIED |
| FSFischer Steel CORP | Memphis | TN | — | ◇ UNVERIFIED |
| FMFisher Metal Products INC | Visalia | CA | — | ◇ UNVERIFIED |
| FSFive Star Industries, INC. | Lincoln | AL | — | ◇ UNVERIFIED |
| FMFixture Manufacturing Corp-winner Road | Kansas City | MO | — | ◇ UNVERIFIED |
| FFF-k Fab Group, LLC | Belle Chasse | LA | — | ◇ UNVERIFIED |
| FLF & L Aluminum Parts, INC. | Summerfield | FL | — | ◇ UNVERIFIED |
| FIFlashco INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| FMFlashflo Mfg. INC. | Buffalo | NY | — | ◇ UNVERIFIED |
| FBFlashing By Design, Inc | North Branch | MN | — | ◇ UNVERIFIED |
| FBFlashing By Design INC | Wyoming | MN | — | ◇ UNVERIFIED |
| FGFlat Gasket and Seal, L.L.C. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| FTFlatlands Threading Co. Inc. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| FTFlatlands Threading Company, INC. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| FBFleet Body Worx | Gilroy | CA | — | ◇ UNVERIFIED |
| FMFleet Machine CO. | Gloucester | MA | — | ◇ UNVERIFIED |
| FMFleming's Machine & Fabrication | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| FIFlexcon Industries | Randolph | MA | — | ◇ UNVERIFIED |
| FLFlexible Lifeline Systems, INC. | Chopin | LA | — | ◇ UNVERIFIED |
| FSFlexible Staffing of Georgia, INC. | Suwanee | GA | — | ◇ UNVERIFIED |
| FCFlextronics Campus Addition Blk a Lot 2 | Plano | TX | — | ◇ UNVERIFIED |
 Flextronics International USA | San Jose | CA | — | ◇ UNVERIFIED |
| Flextronics International, USA | Morgan Hill | CA | — | ◇ UNVERIFIED |
| FLF L Heughes & CO INC | Rochester | NY | — | ◇ UNVERIFIED |
| FSFlight Support, INC. | North Haven | CT | — | ◇ UNVERIFIED |
| FAFlorence Auto Parts, INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| FFlorian | Rancho Cordova | CA | — | ◇ UNVERIFIED |
| FCFlorida Computerized Machining, INC. | Odessa | FL | — | ◇ UNVERIFIED |
| FMFlorida Metal Craft, INC. | Winter Garden | FL | — | ◇ UNVERIFIED |
| FPFlorida Precision Machining, INC. | Melbourne | FL | — | ◇ UNVERIFIED |
| FSFlorida Storm Panel Supply LLC | Opa Locka | FL | — | ◇ UNVERIFIED |
| FSFlotation Systems, INC. | Cullman | AL | — | ◇ UNVERIFIED |
| FPFlotron - Pioneer A/b | Vista | CA | — | ◇ UNVERIFIED |
| FCFlour City Bending INC | Becker | MN | — | ◇ UNVERIFIED |
| FCFlour City Bending INC | Big Lake | MN | — | ◇ UNVERIFIED |
| FCFluid Control Solutions, LLC | Plainville | CT | — | ◇ UNVERIFIED |
| FDFluid Design Products INC | Spokane | WA | — | ◇ UNVERIFIED |
| FSFlutes Sheet Metal, INC. | Ridgeway | VA | — | ◇ UNVERIFIED |
| FWFlying W, INC. | Watonga | OK | — | ◇ UNVERIFIED |
 Fly Manufacturing LLC. | Newton | KS | — | ◇ UNVERIFIED |
| F5Fm 539 Plant | La Vernia | TX | — | ◇ UNVERIFIED |
| FLFmc2 LLC | Howell Township | NJ | — | ◇ UNVERIFIED |
| FNFmc - Norco Properties | Middleport | NY | — | ◇ UNVERIFIED |
| FIFm Industries | Fremont | CA | — | ◇ UNVERIFIED |
| FIFm Industries, INC. Broadway Site | Tempe | AZ | — | ◇ UNVERIFIED |
| FIFm Industries Inc/fm5 | Fremont | CA | — | ◇ UNVERIFIED |
| FIFm Industries, INC. / Fm7 | Livermore | CA | — | ◇ UNVERIFIED |
| FIFm Industries INC Fm8 | Livermore | CA | — | ◇ UNVERIFIED |
| FMF & M Martinez Investments, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| FMF & M Steel Fabricators INC | Vallejo | CA | — | ◇ UNVERIFIED |
| FDFNA Distribution LLC | Burleson | TX | — | ◇ UNVERIFIED |
| FFFocus Fabrication, LLC | Woodstock | CT | — | ◇ UNVERIFIED |
| FMFocus Manufacturing Services | Ogden | UT | — | ◇ UNVERIFIED |
| FMFoltz Machine, LLC | Canton | OH | — | ◇ UNVERIFIED |
| FMFoltz Machine LLC | Canton | OH | — | ◇ UNVERIFIED |
| FTFontaine Trailer Company | Princeton | KY | — | ◇ UNVERIFIED |
| FGFontijne Grotnes, INC. | Itasca | IL | — | ◇ UNVERIFIED |
| FCFood Cart USA West Coast INC | Costa Mesa | CA | — | ◇ UNVERIFIED |
| FPFoothills Powder Coating | Golden | CO | — | ◇ UNVERIFIED |
| FSForbes Steel, INC | Phelan | CA | — | ◇ UNVERIFIED |
| FAForce American Made | Brownsburg | IN | — | ◇ UNVERIFIED |
| FFord-gelatt | Baton Rouge | LA | — | ◇ UNVERIFIED |
| FMFore Machine | Haltom City | TX | — | ◇ UNVERIFIED |
| FTForemost Technologies LLC | Hugo | MN | — | ◇ UNVERIFIED |
| FPForest Park Sheet Metal Works, INC. | Atlanta | GA | — | ◇ UNVERIFIED |
| FCForged Components INC | Houston | TX | — | ◇ UNVERIFIED |
| FDForge Die and Tool Corporation | Farmington Hills | MI | — | ◇ UNVERIFIED |
| FSForge Spec INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| FCFormer Ctc Global Facility | Santa Ana | CA | — | ◇ UNVERIFIED |
| FGFormer Globe Industries Biwal Manufacturing | Clifton | NJ | — | ◇ UNVERIFIED |
| FIFormet, INC. | Laredo | TX | — | ◇ UNVERIFIED |
| FBFormulatrix Bedford | Bedford | MA | — | ◇ UNVERIFIED |
| FFFormweld Fitting, INC. | Milton | FL | — | ◇ UNVERIFIED |
| FSForney Special Products | Dallas | TX | — | ◇ UNVERIFIED |
| FMForrest Machine, INC. | Rocky Hill | CT | — | ◇ UNVERIFIED |
| FSFortitude Specialty Manufacturing, LLC | Houston | TX | — | ◇ UNVERIFIED |
| FSFortitude Specialty Metal | Houston | TX | — | ◇ UNVERIFIED |
| FPFort Peck Tech at Ans Industries | Poplar | MT | — | ◇ UNVERIFIED |
| FFFortress Forms INC. | New Berlin | WI | — | ◇ UNVERIFIED |
| FEForum Energy Technologies | Robstown | TX | — | ◇ UNVERIFIED |
| FEForum Energy Technologies | Midland | TX | — | ◇ UNVERIFIED |
| FEForum Energy Technologies | Guthrie | OK | — | ◇ UNVERIFIED |
| FMFoster Machine | Tulsa | OK | — | ◇ UNVERIFIED |
| FAFought and Company, INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| FCFountain City Machine, INC. | Prattville | AL | — | ◇ UNVERIFIED |
| FSFour Star Erectors, INC | San Francisco | CA | — | ◇ UNVERIFIED |
