| EDExtreme Doors INC. | Hesperia | CA | — | ◇ UNVERIFIED |
| FAF.a. Alpine Window Manufacturing CORP. | Chester | NY | — | ◇ UNVERIFIED |
| FDFabtron Design & Manufacturing , INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| FFactory | Santa Clarita | CA | — | ◇ UNVERIFIED |
| FRFactory Remodeling INC Dba the Window Factory INC | San Diego | CA | — | ◇ UNVERIFIED |
| FDFalcon Door and Window | Malden | MO | — | ◇ UNVERIFIED |
| FIFallon Investment Group, LLC | Tempe | AZ | — | ◇ UNVERIFIED |
| FAFecht and Company, INC. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| FCFenesterra Consulting | Vista | CA | — | ◇ UNVERIFIED |
| FIFirst Impression Doors & More TM | West Palm Beach | FL | — | ◇ UNVERIFIED |
| FCForderer Cornice Works | San Francisco | CA | — | ◇ UNVERIFIED |
| FCForever Custom Iron Doors LLC | Morganville | NJ | — | ◇ UNVERIFIED |
| FMFort Myers Shutters LLC | Fort Myers | FL | — | ◇ UNVERIFIED |
| FHFrameless Hardware Company Dba Fhc | South Gate | CA | — | ◇ UNVERIFIED |
| FFrameworks | Houston | TX | — | ◇ UNVERIFIED |
| FMFrameworks Manufacturing, INC | Houston | TX | — | ◇ UNVERIFIED |
| FGFredericksburg Glass & Mirror | Fredericksburg | VA | — | ◇ UNVERIFIED |
| FMFreeman Marine Equipment INC | Gold Beach | OR | — | ◇ UNVERIFIED |
| GCG2 Corporation Dba Screen Tight | Georgetown | SC | — | ◇ UNVERIFIED |
| GEGaj Enterprises | Marietta | GA | — | ◇ UNVERIFIED |
| GIGard INC | Fullerton | CA | — | ◇ UNVERIFIED |
| GTGarfield Tool & Mfg Company INC | South Gate | CA | — | ◇ UNVERIFIED |
| GAGarrison A-1 Iron Works | Augusta | GA | — | ◇ UNVERIFIED |
| GJGary Johnson and Inga Johnson | San Clemente | CA | — | ◇ UNVERIFIED |
| GMGateway Metal Products, INC. | Lake City | FL | — | ◇ UNVERIFIED |
| GMGateway Metals | Raton | NM | — | ◇ UNVERIFIED |
| GIGen-cap Industries, INC. | Bronx | NY | — | ◇ UNVERIFIED |
| GFGeneral Fire-proof Door, CORP. | Bronx | NY | — | ◇ UNVERIFIED |
| GSGeneral Screen Company | Mount Juliet | TN | — | ◇ UNVERIFIED |
| GJGeorge J. Perez Cubero | San Antonio | PR | — | ◇ UNVERIFIED |
| GSGeorgetown Shutter Shop and More, LLC | Georgetown | SC | — | ◇ UNVERIFIED |
| GEGk Enterprise Truck Body Builder | Ontario | CA | — | ◇ UNVERIFIED |
| GCGlass Concepts | Tamuning | GU | — | ◇ UNVERIFIED |
| GDGlass Design & Metal INC | East Elmhurst | NY | — | ◇ UNVERIFIED |
| GEGlass Expanse, LLC | Belton | TX | — | ◇ UNVERIFIED |
| GHGlass House Security, LLC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| GDGlewwe Doors INC | Eagan | MN | — | ◇ UNVERIFIED |
| GPGlobal Protection Products, LLC | Davie | FL | — | ◇ UNVERIFIED |
| GUGoldbrecht USA INC. | Culver City | CA | — | ◇ UNVERIFIED |
| GGGopi Glass Sales and Services CORP. | Miami | FL | — | ◇ UNVERIFIED |
| GTGraham Thermal Products, LLC | New Castle | PA | — | ◇ UNVERIFIED |
| GAGreat American Door LLC | Decatur | AL | — | ◇ UNVERIFIED |
| GWGreat Western Grinding INC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| GAGrover Aluminum Products INC. | Patchogue | NY | — | ◇ UNVERIFIED |
| GFGrundman Fabricators and Erectors LLC | Davie | FL | — | ◇ UNVERIFIED |
| GTGundrill Tech | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| GTGurgen Torchyan | Lancaster | CA | — | ◇ UNVERIFIED |
| HOHamon Overhead Door Company INC. | Lompoc | CA | — | ◇ UNVERIFIED |
| HPHampton Products International Corporation | Shell Lake | WI | — | ◇ UNVERIFIED |
| HIHardcraft Industries | San Jose | CA | — | ◇ UNVERIFIED |
| HWHayfield Window and Door Company | Hayfield | MN | — | ◇ UNVERIFIED |
| HIHehr Intl INC Plt 9 | Chesaning | MI | — | ◇ UNVERIFIED |
| HPHemstreet Park | West Palm Beach | FL | — | ◇ UNVERIFIED |
| HDHeritage Door CO | Philadelphia | PA | — | ◇ UNVERIFIED |
| HRHermanos Rivera Windows CORP. | Cabo Rojo | PR | — | ◇ UNVERIFIED |
| HSHimco Security Products | Los Angeles | CA | — | ◇ UNVERIFIED |
| HSHinkel-hofmann Supply Company | Pittsburgh | PA | — | ◇ UNVERIFIED |
| H3Hirsch 3667 Coporation | Clinton | OK | — | ◇ UNVERIFIED |
| HMHollow Metal, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| HMHollow Metal Specialties, INC. | Pennsauken | NJ | — | ◇ UNVERIFIED |
| HMHollow Metal Specialties, INC. | Mcadoo | PA | — | ◇ UNVERIFIED |
| HMHollow Metal Xpress | Phoenix | AZ | — | ◇ UNVERIFIED |
| HGHome Guard Industries, INC. | Grabill | IN | — | ◇ UNVERIFIED |
| HWHopes Windows INC | Falconer | NY | — | ◇ UNVERIFIED |
| HSHspd Securities Manufacturing, INC. | Canon City | CO | — | ◇ UNVERIFIED |
| HMH&w Molders | Evansville | IN | — | ◇ UNVERIFIED |
| IMIdeal Metal Products | Waco | TX | — | ◇ UNVERIFIED |
| IMIgnacio Martinez Dba Sunset and Company | Apple Valley | CA | — | ◇ UNVERIFIED |
| IWImpact Windows LLC | Shreveport | LA | — | ◇ UNVERIFIED |
| IWImperial Window Manufacturing, LLC | Memphis | TN | — | ◇ UNVERIFIED |
| IVImperium Vinyl Windows & Doors, INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| IDIndustrial Door CO INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| IFIndustrial Finishing INC | Delano | MN | — | ◇ UNVERIFIED |
| IFIndustrias Feliciano Aluminum INC | Arecibo | PR | — | ◇ UNVERIFIED |
| IFIndustrias Feliciano Aluminum, INC. | Aguadilla | PR | — | ◇ UNVERIFIED |
| IBInnovation By Degro INC | Coto Laurel | PR | — | ◇ UNVERIFIED |
| IMInnovations Manufacturing INC | Denver | CO | — | ◇ UNVERIFIED |
| IInterclad | Plymouth | MN | — | ◇ UNVERIFIED |
 International Door, INC. | North Kingstown | RI | — | ◇ UNVERIFIED |
| IIInternational Impact Building Products LLC | West Palm Bch | FL | — | ◇ UNVERIFIED |
| IIIntigral, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| ISIsland Screen INC. | Waipahu | HI | — | ◇ UNVERIFIED |
| ISIsland Style Windows and Doors, Inc. | Naples | FL | — | ◇ UNVERIFIED |
| JIJada INC | Grass Valley | CA | — | ◇ UNVERIFIED |
| JSJansen Shutters & Specialties | Venice | FL | — | ◇ UNVERIFIED |
| JWJeld Wen | Ozark | AL | — | ◇ UNVERIFIED |
| JHJeld-wen Holding, INC. | Venice | FL | — | ◇ UNVERIFIED |
| JMJ & M Precision Sheetmetal | Cotati | CA | — | ◇ UNVERIFIED |
| JCJohnson Contracting Solutions INC | Portland | OR | — | ◇ UNVERIFIED |
| JIJ&s Innovations, LLC | White Bear Lake | MN | — | ◇ UNVERIFIED |
| JWJs West and Companies | Modesto | CA | — | ◇ UNVERIFIED |
| JWJw Window Components INC D/b/a Ritescreen | Elizabethton | TN | — | ◇ UNVERIFIED |
| KMKairos Mfg INC Dba Architectural Iron Works | San Luis Obispo | CA | — | ◇ UNVERIFIED |
| KDKalmont Distributors INC | Kalispell | MT | — | ◇ UNVERIFIED |
| KSKarpen Steel Products, INC. | Weaverville | NC | — | ◇ UNVERIFIED |
| KCKawneer Company INC | Riverside | CA | — | ◇ UNVERIFIED |
| KCKawneer Company INC. | Hanover | MD | — | ◇ UNVERIFIED |
| KCKawneer Company, INC. | Roselle | IL | — | ◇ UNVERIFIED |
| KBK Building Components INC | Hibbing | MN | — | ◇ UNVERIFIED |
| KBKelley Bros LLC | De Ruyter | NY | — | ◇ UNVERIFIED |
