| FIFabsouth, INC. | Troy | TN | — | ◇ UNVERIFIED |
| FLFabstar, LLC | High Point | NC | — | ◇ UNVERIFIED |
| FTFab Tech Manufacturing INC | Redmond | OR | — | ◇ UNVERIFIED |
| FTFab Tech Manufacturing INC | Prineville | OR | — | ◇ UNVERIFIED |
| FMFabtek Manufacturing, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| FTFab Tek Metal Processing INC | Eugene | OR | — | ◇ UNVERIFIED |
| FIFabtronics, Inc. | Valdosta | GA | — | ◇ UNVERIFIED |
| FMFabwest Manufacturing | Temecula | CA | — | ◇ UNVERIFIED |
| FFFab-worx Fabricators, LLC | Port Allen | LA | — | ◇ UNVERIFIED |
| FAF & a Fabricating, INC | Battle Creek | MI | — | ◇ UNVERIFIED |
| FSFahrenheit Services Air Conditioning & Refrigeration inc | Miami | FL | — | ◇ UNVERIFIED |
| FSFairfield Steel Works LLC | Shelton | CT | — | ◇ UNVERIFIED |
| FAFairmont Awards Manufacturing INC | Fairmont | MN | — | ◇ UNVERIFIED |
| FGFaist Greentek, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| FFFalcon Fabrication, INC. | Laceys Spring | AL | — | ◇ UNVERIFIED |
| FMFalcon Metal Craft | Canby | OR | — | ◇ UNVERIFIED |
| FMFalcon Metalcraft INC | Canby | OR | — | ◇ UNVERIFIED |
| FSFalcon Steel Company | Fort Worth | TX | — | ◇ UNVERIFIED |
| FMFalls Metal Fabricators & Industrial Services, LLC | Akron | OH | — | ◇ UNVERIFIED |
| FEFamous Enterprises, INC. | Mount Vernon | OH | — | ◇ UNVERIFIED |
| FMFannco Metal Buildings & Components | Clovis | CA | — | ◇ UNVERIFIED |
| FSFarwest Steel Post Tensioning Company | Portland | OR | — | ◇ UNVERIFIED |
| FIFasco Industries Inc-cassville Plant | Cassville | MO | — | ◇ UNVERIFIED |
| FIFashion, INC. | Ottawa | KS | — | ◇ UNVERIFIED |
| FPFasteel Piering Systems LLC | Saint Louis | MO | — | ◇ UNVERIFIED |
| FIFastest INC | Roseville | MN | — | ◇ UNVERIFIED |
| FIFastest INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| FLFast Lane Processing & Fabrication LLC | Loveland | CO | — | ◇ UNVERIFIED |
| FLFast Lane Processing & Fabrication LLC | Milliken | CO | — | ◇ UNVERIFIED |
| FTFast Truss Connection | Miami | FL | — | ◇ UNVERIFIED |
| FAFathom and Form, LLC | Los Angeles | CA | — | ◇ UNVERIFIED |
| FSFaust Sheet Metal Works, INC. | Lewes | DE | — | ◇ UNVERIFIED |
| FEFaxon Enterprises INC | San Antonio | TX | — | ◇ UNVERIFIED |
| FIFcf INC | Shreveport | LA | — | ◇ UNVERIFIED |
| FLFe26 LLC | Gastonia | NC | — | ◇ UNVERIFIED |
| FMFederal Metals, INC | Tulsa | OK | — | ◇ UNVERIFIED |
| FSFederal Steel & Erection CO | East Alton | IL | — | ◇ UNVERIFIED |
| FWFeese Welding & Iron | Liberal | KS | — | ◇ UNVERIFIED |
| FBFelker Brothers CORP | Plover | WI | — | ◇ UNVERIFIED |
| FLFenico LLC | Commerce | CA | — | ◇ UNVERIFIED |
| FSFenix Storefront & Signs LLC | Corona | NY | — | ◇ UNVERIFIED |
| FCFeralloy Corporation | Stockton | CA | — | ◇ UNVERIFIED |
| FFFergerson Fire and Fabrication 1767 | Pflugerville | TX | — | ◇ UNVERIFIED |
| FEFerguson Enterprises LLC #2778 | South Holland | IL | — | ◇ UNVERIFIED |
| FFFerguson Fire and Fabrication 1760 | Chicopee | MA | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication Facility 0728 | Houston | TX | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication (facility 2567) | Guntersville | AL | — | ◇ UNVERIFIED |
| FFFerguson Fire & Fabrication INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| FFFerguson Fire - Fabrication INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| FBFerraro Bros INC | Maspeth | NY | — | ◇ UNVERIFIED |
| FRFerrell-ross Roll Manufacturing INC. | Hereford | TX | — | ◇ UNVERIFIED |
| FIFerrofab INC. | Hamlet | NC | — | ◇ UNVERIFIED |
| FIFerro INC | West Valley | UT | — | ◇ UNVERIFIED |
| FOFerus Outdoors LLC | Huntersville | NC | — | ◇ UNVERIFIED |
| FFF & F Sheet Metal and Fabrication, L.L.C. | Tiffin | OH | — | ◇ UNVERIFIED |
| FFF & F Sheet Metal and Fabrication, L.L.C. | Tiffin | OH | — | ◇ UNVERIFIED |
| FLFibracan, LLC | Tucson | AZ | — | ◇ UNVERIFIED |
| FCFibrebond Corporation Dba International Supply Company | Edelstein | IL | — | ◇ UNVERIFIED |
| FFFick Foundry Company | Tacoma | WA | — | ◇ UNVERIFIED |
| FMFife Metal Fabricating INC | Redding | CA | — | ◇ UNVERIFIED |
| FDFifty Door Partners, LLC. | New Windsor | NY | — | ◇ UNVERIFIED |
| FAFincher and Sons Pipe and Steel | Caddo | OK | — | ◇ UNVERIFIED |
| FMFindlay Machine and Tool INC | Findlay | OH | — | ◇ UNVERIFIED |
| FFFine-Line Fabrications, LLC | Oostburg | WI | — | ◇ UNVERIFIED |
| FFFine-Line Fabrications, LLC | Oostburg | WI | — | ◇ UNVERIFIED |
| FFFine-Line Fabrications, LLC | Oostburg | WI | — | ◇ UNVERIFIED |
| FMFine Metal Roof Tech LLC | Murray | UT | — | ◇ UNVERIFIED |
| FTFinishing Technologies INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| FLFinish Line Powder Coating | Yakima | WA | — | ◇ UNVERIFIED |
| FSFinkles Studio | Rockport | TX | — | ◇ UNVERIFIED |
| FSFino's Screen & Aluminum Company | Port Saint Lucie | FL | — | ◇ UNVERIFIED |
| FFFireball Fab and Metal Sales LLC | Little Canada | MN | — | ◇ UNVERIFIED |
 Fireblast Global INC Dba Fireblast 451 INC | Murrieta | CA | — | ◇ UNVERIFIED |
| FMFirelands Manufacturing, LLC | Plymouth | OH | — | ◇ UNVERIFIED |
| FFFireside Fabrication LLC | Thomson | GA | — | ◇ UNVERIFIED |
| FEFirst Electronics Company | Boston | MA | — | ◇ UNVERIFIED |
| FHFirst Heating & Cooling LLC | Bridgeport | CT | — | ◇ UNVERIFIED |
| FHFirst Heating & Cooling LLC | New Canaan | CT | — | ◇ UNVERIFIED |
| FOFirst Oceanic LLC, a California limited liability company | Oceanside | CA | — | ◇ UNVERIFIED |
| FOFirst Oceanic LLC, a California limited liability company | Oceanside | CA | — | ◇ UNVERIFIED |
| FPFirst Process Steel, INC. | Tulsa | OK | — | ◇ UNVERIFIED |
| FRFirst Rate Industries, LTD | Saint Marys | OH | — | ◇ UNVERIFIED |
| FSFirst Source Fabricating, Inc. | Cincinnati | OH | — | ◇ UNVERIFIED |
| FIFischer Industries, INC. | Mequon | WI | — | ◇ UNVERIFIED |
| FSFischer Steel CORP | Memphis | TN | — | ◇ UNVERIFIED |
| FHFisher Hamilton INC. Columbus Street | Two Rivers | WI | — | ◇ UNVERIFIED |
| FMFisher Metal Fabricating, LLC | Walbridge | OH | — | ◇ UNVERIFIED |
| FMFisher Metal Products INC | Visalia | CA | — | ◇ UNVERIFIED |
| FFFishing for Gold INC Dba Bishops Jewelry Gallery | Fairbanks | AK | — | ◇ UNVERIFIED |
| FFFissori Fabrication LLC | Azle | TX | — | ◇ UNVERIFIED |
| FPFive-M Property LLC | Shelby Township | MI | — | ◇ UNVERIFIED |
| FSFive Star Industries, INC. | Macomb | MI | — | ◇ UNVERIFIED |
| FMFixture Manufacturing Corp-winner Road | Kansas City | MO | — | ◇ UNVERIFIED |
| FFF-k Fab Group, LLC | Belle Chasse | LA | — | ◇ UNVERIFIED |
| FGFlambeaux Gas & Electric Lights, LLC | Westwego | LA | — | ◇ UNVERIFIED |
| FIFlashco INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| FMFlashco Manufacturing Inc' | Woodland | WA | — | ◇ UNVERIFIED |
| FBFlashing By Design, Inc | North Branch | MN | — | ◇ UNVERIFIED |
| FBFlashing By Design INC | Wyoming | MN | — | ◇ UNVERIFIED |
| FTFlatlands Threading Co. Inc. | Oklahoma City | OK | — | ◇ UNVERIFIED |
