| JJJ. Joiners, LLC | Hamden | CT | — | ◇ UNVERIFIED |
| JJJ & J Quality Door, INC. | Livermore | CA | — | ◇ UNVERIFIED |
| JCJmc Cabinets and Interiors INC | Everett | WA | — | ◇ UNVERIFIED |
| JAJoaquin Avi?o, INC. | Carolina | PR | — | ◇ UNVERIFIED |
| JSJob Site Service, INC. | Merced | CA | — | ◇ UNVERIFIED |
| JJJohannes J. Bussjaeger | Orange | CA | — | ◇ UNVERIFIED |
| JWJordan Woodworking LLC | Longmont | CO | — | ◇ UNVERIFIED |
| JMJoseph Millworks INC | Baker City | OR | — | ◇ UNVERIFIED |
| JCJourney Church | Medford | OR | — | ◇ UNVERIFIED |
| JIJoyner-black INC | North Charleston | SC | — | ◇ UNVERIFIED |
| JIJrt INC. | Eclectic | AL | — | ◇ UNVERIFIED |
| JIJrt, INC. | Eclectic | AL | — | ◇ UNVERIFIED |
| JSJ & S Windows CORP | Huntington Park | CA | — | ◇ UNVERIFIED |
| JWJt Windows INC. | Chatsworth | CA | — | ◇ UNVERIFIED |
| JFJuan Fernando Mayen | Corpus Christi | TX | — | ◇ UNVERIFIED |
| JCJylykpr CORP | Manati | PR | — | ◇ UNVERIFIED |
| KCKarls Custom Sash & Doors | Huntington Beach | CA | — | ◇ UNVERIFIED |
| KBKarona By Jeld Wen | Caledonia | MI | — | ◇ UNVERIFIED |
| KIKarona INC | Caledonia | MI | — | ◇ UNVERIFIED |
| KWKelleher Wood Products | Sonoma | CA | — | ◇ UNVERIFIED |
| KWKelly Window Mfg INC | Detroit | MI | — | ◇ UNVERIFIED |
| KDKincaid & Decker Inc,woodmart Window Cov | Van Nuys | CA | — | ◇ UNVERIFIED |
| KWKingbrook Window and Door Company | Simpsonville | KY | — | ◇ UNVERIFIED |
| KRKings River Door INC | Sanger | CA | — | ◇ UNVERIFIED |
| KPKitchen Plus Cabinet Shop | Kirkland | WA | — | ◇ UNVERIFIED |
| KJK & J Graphics | Antioch | CA | — | ◇ UNVERIFIED |
| KIKlm Industries INC | South Chicago Heights | IL | — | ◇ UNVERIFIED |
| KCKoch & Co., INC. | Topeka | KS | — | ◇ UNVERIFIED |
| KCKoch & CO. - Seneca (us Hwy 36) | Seneca | KS | — | ◇ UNVERIFIED |
| KDKrosswood Doors LLC | Tucson | AZ | — | ◇ UNVERIFIED |
| KSK & S Millwork LTD | White Plains | MD | — | ◇ UNVERIFIED |
| KIKylemont Industries | Marysville | WA | — | ◇ UNVERIFIED |
| LCLa Cantina Doors INC | Oceanside | CA | — | ◇ UNVERIFIED |
| LMLakeview Millworks Sales, Inc. | Sisters | OR | — | ◇ UNVERIFIED |
| LTLaminate Technologies | Diboll | TX | — | ◇ UNVERIFIED |
| LMLarry Methvin Installations INC | Ontario | CA | — | ◇ UNVERIFIED |
| LNLarry Nava | Van Nuys | CA | — | ◇ UNVERIFIED |
| LULarson-juhl US LLC | Ashland | WI | — | ◇ UNVERIFIED |
| LGLd Garage Door Service LLC | Philadelphia | PA | — | ◇ UNVERIFIED |
| LMLeedo Manufacturing El Campo Plant | El Campo | TX | — | ◇ UNVERIFIED |
| LPLegacy Products LLC | Midlothian | VA | — | ◇ UNVERIFIED |
| LMLexington Manufacturing Building 1 | Coon Rapids | MN | — | ◇ UNVERIFIED |
| LMLexington Manufacturing INC - Brainerd | Brainerd | MN | — | ◇ UNVERIFIED |
| LMLexington Manufacturing LLC | Anderson | IN | — | ◇ UNVERIFIED |
| LVLiberty Valley Doors, INC | Cotati | CA | — | ◇ UNVERIFIED |
| LDLifetime Doors Inc/easton | Easton | PA | — | ◇ UNVERIFIED |
| LWLincoln Wood Products | Merrill | WI | — | ◇ UNVERIFIED |
| LBLindal Building Products | Burlington | WA | — | ◇ UNVERIFIED |
| LWLindsay Windows - Ca | Apple Valley | CA | — | ◇ UNVERIFIED |
| LLL & L Custom Shutters | Placentia | CA | — | ◇ UNVERIFIED |
| LCL&l Custom Shutters Inc,allwood Shutters | Placentia | CA | — | ◇ UNVERIFIED |
| LLL. L. Windows and Plus CORP. | Miami | FL | — | ◇ UNVERIFIED |
| LALoffreno Architectural Woodworking, INC. | Irvington | NJ | — | ◇ UNVERIFIED |
| LMLowpensky Moulding | San Francisco | CA | — | ◇ UNVERIFIED |
| LSL & S Supplies, LLC | Brooksville | FL | — | ◇ UNVERIFIED |
| LWLucent Window & Door Co., LLC | Sainte Genevieve | MO | — | ◇ UNVERIFIED |
| LBLumbermens Building Center Kennewick | Kennewick | WA | — | ◇ UNVERIFIED |
| LOLundia-division of Mii INC | Jacksonville | IL | — | ◇ UNVERIFIED |
| LWL W O Corporation | Portland | OR | — | ◇ UNVERIFIED |
| MWMagnolia Windows & Doors | Cornelia | GA | — | ◇ UNVERIFIED |
| MCMaiman Company (the)-springfield | Springfield | MO | — | ◇ UNVERIFIED |
| MFMaiman Fine Architectural Doors | Springfield | MO | — | ◇ UNVERIFIED |
| MWMajestic Woodworking INC | Coon Rapids | MN | — | ◇ UNVERIFIED |
| MDManhattan Door Corporation | Carlstadt | NJ | — | ◇ UNVERIFIED |
| MLMarvin Lumber - Cedar CO Dba Marvin Windows - Door | Warroad | MN | — | ◇ UNVERIFIED |
| MWMarvin Windows | Fargo | ND | — | ◇ UNVERIFIED |
| MWMarvin Windows & Doors | Warroad | MN | — | ◇ UNVERIFIED |
| MWMarvin Windows of Tennessee, INC. | Ripley | TN | — | ◇ UNVERIFIED |
| MSMasco Support Services | Cumberland | IN | — | ◇ UNVERIFIED |
| MMasonite | Walkerton | IN | — | ◇ UNVERIFIED |
| MAMasonite Architectural INC. | Northumberland | PA | — | ◇ UNVERIFIED |
| MCMasonite CORP | Algoma | WI | — | ◇ UNVERIFIED |
| MCMasonite CORP | Marshfield | WI | — | ◇ UNVERIFIED |
| MCMasonite Corp/northumberland Door Plt | Northumberland | PA | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Tampa | FL | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Denmark | SC | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Largo | FL | — | ◇ UNVERIFIED |
| MCMasonite Corporation | South Bend | IN | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Mason City | IA | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Mason City | IA | — | ◇ UNVERIFIED |
| MCMasonite Corporation | Haleyville | AL | — | ◇ UNVERIFIED |
| MDMasonite Door Fabrication Services | Yulee | FL | — | ◇ UNVERIFIED |
| MIMasonite International | Winchester | VA | — | ◇ UNVERIFIED |
| MIMasonite International CORP. | Tampa | FL | — | ◇ UNVERIFIED |
| MIMasonite International Corporation | Thorp | WI | — | ◇ UNVERIFIED |
| MIMasonite International INC | Stockton | CA | — | ◇ UNVERIFIED |
| MMMasonite - Madison Location | Tampa | FL | — | ◇ UNVERIFIED |
| MWMatheny Windows & Doors | San Leandro | CA | — | ◇ UNVERIFIED |
| MBMatthews Building Supply Company, INC. | Monroe | NC | — | ◇ UNVERIFIED |
| MDMaverick Door and Millwork, INC. | Schertz | TX | — | ◇ UNVERIFIED |
| MCM&b Carpentry and Manufacturing, INC. | Farmersville | CA | — | ◇ UNVERIFIED |
| MDMcfarland Door & Millwork LLC | Lakeview | OR | — | ◇ UNVERIFIED |
| MWMclachlan Wood Finishing CO | Mountain View | CA | — | ◇ UNVERIFIED |
| MMMcphillips Mfg CO INC | Mobile | AL | — | ◇ UNVERIFIED |
| MIMesker Industries in | Hazelwood | MO | — | ◇ UNVERIFIED |
| MIMetrie INC | Rocklin | CA | — | ◇ UNVERIFIED |
| MMMicawrap Moulding | Riverbank | CA | — | ◇ UNVERIFIED |
| MRMichael Reilly Design Incorporated / Dba Reilly Windows & Doors | Calverton | NY | — | ◇ UNVERIFIED |
| MWMidsouth Window Fashions LLC | Memphis | TN | — | ◇ UNVERIFIED |
| MWMidwestern Wood Products | Morton | IL | — | ◇ UNVERIFIED |
