| FSFormer Spin-tech CORP | Hoboken | NJ | — | ◇ UNVERIFIED |
| FTFormer Tri City Plating | Oceanside | CA | — | ◇ UNVERIFIED |
| FGForm Grind Corporation | Rcho Sta Marg | CA | — | ◇ UNVERIFIED |
| FBFormulatrix Bedford | Bedford | MA | — | ◇ UNVERIFIED |
| FFFormweld Fitting, INC. | Milton | FL | — | ◇ UNVERIFIED |
| FSForney Special Products | Dallas | TX | — | ◇ UNVERIFIED |
| FBForrest Bradshaw Holdings LLC | Franklin Park | IL | — | ◇ UNVERIFIED |
| FMForrest Machine, INC. | Rocky Hill | CT | — | ◇ UNVERIFIED |
| FMForrest Machine Products Company, LLC | Lexington | OH | — | ◇ UNVERIFIED |
| FMForrest Machining INC | Valencia | CA | — | ◇ UNVERIFIED |
| FIForterra INC - Mineral Wells | Mineral Wells | TX | — | ◇ UNVERIFIED |
| FSFortitude Specialty Manufacturing, LLC | Houston | TX | — | ◇ UNVERIFIED |
| FKFort Knox, INC. | Orem | UT | — | ◇ UNVERIFIED |
| FPFort Peck Tech at Ans Industries | Poplar | MT | — | ◇ UNVERIFIED |
| FFFortress Forms INC. | New Berlin | WI | — | ◇ UNVERIFIED |
| FMFortress Manufacturing INC | New Berlin | WI | — | ◇ UNVERIFIED |
| FMFortune Metal LLC | Mcdonough | GA | — | ◇ UNVERIFIED |
| FWFort Worth (tex-loc) | Fort Worth | TX | — | ◇ UNVERIFIED |
| FEForum Energy Technologies | Midland | TX | — | ◇ UNVERIFIED |
| FEForum Energy Technologies | Guthrie | OK | — | ◇ UNVERIFIED |
| FEForum Energy Technologies | Robstown | TX | — | ◇ UNVERIFIED |
| FMFoster Machine | Tulsa | OK | — | ◇ UNVERIFIED |
| FAFought and Company, INC. | Salt Lake City | UT | — | ◇ UNVERIFIED |
| FMFoundation Manufacturing, Inc. | North Canton | OH | — | ◇ UNVERIFIED |
| FPFoundry Pattern Service, INC. | Chattanooga | TN | — | ◇ UNVERIFIED |
| FCFountain City Machine, INC. | Prattville | AL | — | ◇ UNVERIFIED |
| FCFountainhead Cryogenic Procedures, LLC | York | PA | — | ◇ UNVERIFIED |
| FTFountain Technologies, LTD. | Wheeling | IL | — | ◇ UNVERIFIED |
| FSFour Star Erectors, INC | San Francisco | CA | — | ◇ UNVERIFIED |
| FSFour Star Erectors, INC. | Livermore | CA | — | ◇ UNVERIFIED |
| FSFour Star, INC. | Baton Rouge | LA | — | ◇ UNVERIFIED |
| FGFourth Generation INC | Monroe | LA | — | ◇ UNVERIFIED |
| FMFoxboro Machine INC. | Gerald | MO | — | ◇ UNVERIFIED |
| FTFoxsemicon Technology LLC | Union City | CA | — | ◇ UNVERIFIED |
| FVFox Valley Metal Fab Inc | Appleton | WI | — | ◇ UNVERIFIED |
| FEFPSC Enterprises, LLC | Tampa | FL | — | ◇ UNVERIFIED |
| FTFraming Tech Holdings LLC | Rochester | NY | — | ◇ UNVERIFIED |
| FBFran Bearing CO | Mayfield | KY | — | ◇ UNVERIFIED |
| FIFrancer Industries Incorporated | East Weymouth | MA | — | ◇ UNVERIFIED |
| FMFrancis Metal Works LLC | Osseo | MN | — | ◇ UNVERIFIED |
| FPFrancis Plating Frog Pond | Oakland | CA | — | ◇ UNVERIFIED |
| FFFranco & Franco LP | Union City | CA | — | ◇ UNVERIFIED |
| FFFrancom Fabrication, LLC | Blanding | UT | — | ◇ UNVERIFIED |
| FIFrankenmuth Industrial Services | Frankenmuth | MI | — | ◇ UNVERIFIED |
| FMFranklin Machine & Gear | Humble | TX | — | ◇ UNVERIFIED |
| FMFrank Mance Plating, LLC | Pittsburgh | PA | — | ◇ UNVERIFIED |
| FAFranko Automatics INC | Elk River | MN | — | ◇ UNVERIFIED |
| FCFrank's Custom Stainless | Pittsburgh | PA | — | ◇ UNVERIFIED |
| FWFrank's Welding & Manufacturing Company | Melrose Park | IL | — | ◇ UNVERIFIED |
| FTFrank Tricerri | Paramount | CA | — | ◇ UNVERIFIED |
| FYFrank Yamrick & Patrica M. Yamrick | Swoyersville | PA | — | ◇ UNVERIFIED |
| FGFraser Grinding & Boring CO. | Fraser | MI | — | ◇ UNVERIFIED |
| FMFrazier Manufacturing, INC. | Sand Springs | OK | — | ◇ UNVERIFIED |
| FTFrecon Technologies, Inc | West Chester | OH | — | ◇ UNVERIFIED |
| FMFredericksburg Machine & Steel LLC | Fredericksburg | VA | — | ◇ UNVERIFIED |
| FCFredrick Charles Longaker, Et Al | Delano | CA | — | ◇ UNVERIFIED |
| FMFreedom Manufacturing, Inc. | York | PA | — | ◇ UNVERIFIED |
| FMFreedom Metals, Inc. | Coleman | WI | — | ◇ UNVERIFIED |
| FSFreedom Surface Blasting LLC | Hope | RI | — | ◇ UNVERIFIED |
| FMFreeman Metal Products INC | Ahoskie | NC | — | ◇ UNVERIFIED |
| FPFreeman Products | Gardena | CA | — | ◇ UNVERIFIED |
| FPFreeman Products Div Avnet I | Torrance | CA | — | ◇ UNVERIFIED |
| FEFreeway Enterprises | Belgrade | MT | — | ◇ UNVERIFIED |
| FIFremar Industries INC. | Kansas City | MO | — | ◇ UNVERIFIED |
| FRFrenchs Repair & Fabrication INC | Dodge Center | MN | — | ◇ UNVERIFIED |
| FNFrenzelit North America INC. | Lexington | NC | — | ◇ UNVERIFIED |
| FDFresh Doors LLC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| FIFreshkube INC. | Mesa | AZ | — | ◇ UNVERIFIED |
| FFFresno Fab Tech INC | Sanger | CA | — | ◇ UNVERIFIED |
| FSFriction Solutions, LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| FCFriedrichs Custom Manufacturing, INC | Jefferson | LA | — | ◇ UNVERIFIED |
| FIFriendship Industries INC | Sterling Heights | MI | — | ◇ UNVERIFIED |
| FCFrier Custom Manufacturing INC. | Trevor | WI | — | ◇ UNVERIFIED |
| FFrightprops | Brooklyn Park | MN | — | ◇ UNVERIFIED |
| FAFritz Air, LLC | Torrington | CT | — | ◇ UNVERIFIED |
| FAFrogco Amphibious Equipment, LLC | Houma | LA | — | ◇ UNVERIFIED |
| FMFrontier Manufacturing Company | Trenton | TX | — | ◇ UNVERIFIED |
| FMFrontline Machining LLC | Riverside | CA | — | ◇ UNVERIFIED |
| FRFront Range CNC LLC | Simla | CO | — | ◇ UNVERIFIED |
| FRFront Range Steel INC | Fort Collins | CO | — | ◇ UNVERIFIED |
| FSF.r. Stamping CORP. | Montclair | CA | — | ◇ UNVERIFIED |
| FFFrugal Freedom Corporation | Ceresco | MI | — | ◇ UNVERIFIED |
| FLFsm LLC | Waterbury | VT | — | ◇ UNVERIFIED |
| FIFsr, INC. | Little Falls | NJ | — | ◇ UNVERIFIED |
| FTFs Tool Company | Warren | MI | — | ◇ UNVERIFIED |
| FMFt Manufacturing Corporation | West Bend | WI | — | ◇ UNVERIFIED |
| FIFuel Industrial Services, LLC | Lancaster | OH | — | ◇ UNVERIFIED |
| FAFujikura Automotive America, LLC | Monroe | LA | — | ◇ UNVERIFIED |
| FPFulcrum Plant 1 | East Providence | RI | — | ◇ UNVERIFIED |
| FCFull Circle Design LLC. | Baldwin City | KS | — | ◇ UNVERIFIED |
| FCFullerton Custom Works INC | Fullerton | CA | — | ◇ UNVERIFIED |
| FMFull Metal Customs | Rogersville | MO | — | ◇ UNVERIFIED |
| FSFull Spectrum Manufacturing, INC. | West Palm Beach | FL | — | ◇ UNVERIFIED |
| FTFull Tilt Performance LLC | Jackson | MN | — | ◇ UNVERIFIED |
| FEFulton Equipment | Toledo | OH | — | ◇ UNVERIFIED |
| FTFulton Tool Co.,inc. | Fulton | NY | — | ◇ UNVERIFIED |
| FCFunder Custom INC | Enoch | UT | — | ◇ UNVERIFIED |
| FNFunk N Hall | Saint George | UT | — | ◇ UNVERIFIED |
| FSFurin - Shea Welding - Fabricating INC | Kelly Lake | MN | — | ◇ UNVERIFIED |
| FFFuse Fabrication, LLC | Mulberry | FL | — | ◇ UNVERIFIED |