| HSHimco Security Products | Los Angeles | CA | — | ◇ UNVERIFIED |
| HSHinkel-hofmann Supply Company | Pittsburgh | PA | — | ◇ UNVERIFIED |
| H3Hirsch 3667 Coporation | Clinton | OK | — | ◇ UNVERIFIED |
| HCHistory Construction Management, LLC | Odell | IL | — | ◇ UNVERIFIED |
| HHHolcomb & Hoke Manufacturing Company Incorporated | Indianapolis | IN | — | ◇ UNVERIFIED |
| HMHollow Metal, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| HMHollow Metal Specialties, INC. | Mcadoo | PA | — | ◇ UNVERIFIED |
| HMHollow Metal Specialties, INC. | Pennsauken | NJ | — | ◇ UNVERIFIED |
| HMHollow Metal Xpress | Phoenix | AZ | — | ◇ UNVERIFIED |
| HGHome Guard Industries, INC. | Grabill | IN | — | ◇ UNVERIFIED |
| HIHome-picks INC. | Midway City | CA | — | ◇ UNVERIFIED |
| HWHometime Window INC | Yancho Cucamonga | CA | — | ◇ UNVERIFIED |
| HWHometime Windows and Doors, Inc. | Claremont | CA | — | ◇ UNVERIFIED |
| HWHopes Windows INC | Falconer | NY | — | ◇ UNVERIFIED |
| HLHormann, LLC | Sparta | TN | — | ◇ UNVERIFIED |
| HOHouse of Doors, INC. | Cheshire | CT | — | ◇ UNVERIFIED |
| HSHspd Securities Manufacturing, INC. | Canon City | CO | — | ◇ UNVERIFIED |
| HFHudson Furniture, INC | Fairfield | NJ | — | ◇ UNVERIFIED |
| HLHunt Lumber & Supply Inc. | Jacksonville | FL | — | ◇ UNVERIFIED |
| HLHunt Lumber & Supply Inc. | Jacksonville | FL | — | ◇ UNVERIFIED |
| HWHurd Windows & Doors INC | Merrill | WI | — | ◇ UNVERIFIED |
| HLHurricanefabric.com LLC | Tulsa | OK | — | ◇ UNVERIFIED |
| HBHuttig Building Products | Rocky Mount | NC | — | ◇ UNVERIFIED |
| HBHuttig Building Products INC | Davenport | FL | — | ◇ UNVERIFIED |
| HWH Window Company | Ashland | WI | — | ◇ UNVERIFIED |
| HMH&w Molders | Evansville | IN | — | ◇ UNVERIFIED |
| HAHydro Aluminum North America Central Region Cassville Plant | Cassville | MO | — | ◇ UNVERIFIED |
| ISIbp Solutions US LLC | Marshfield | WI | — | ◇ UNVERIFIED |
| ISIbp Solutions US Llc, Dba USA Wood Door | Thorofare | NJ | — | ◇ UNVERIFIED |
| IMIdeal Metal Products | Waco | TX | — | ◇ UNVERIFIED |
| IPIdeal Pet Products Inc. | Valencia | CA | — | ◇ UNVERIFIED |
| IMIgnacio Martinez Dba Sunset and Company | Apple Valley | CA | — | ◇ UNVERIFIED |
| IDIhs Door Company | Superior | WI | — | ◇ UNVERIFIED |
| ICIke Chung | Sun Valley | CA | — | ◇ UNVERIFIED |
| IIIke International CORP | Stanley | WI | — | ◇ UNVERIFIED |
| IBIlab By Pgt Innovation | North Venice | FL | — | ◇ UNVERIFIED |
| IDImage Doors | Milton | GA | — | ◇ UNVERIFIED |
| IWImpact Windows LLC | Shreveport | LA | — | ◇ UNVERIFIED |
| IWImperial Window Manufacturing, LLC | Memphis | TN | — | ◇ UNVERIFIED |
| IVImperium Vinyl Windows & Doors, INC. | Anaheim | CA | — | ◇ UNVERIFIED |
| IWIndalex West INC. | Modesto | CA | — | ◇ UNVERIFIED |
| IMIndependent Millwork & Hardwar | Selma | NC | — | ◇ UNVERIFIED |
| IDIndustrial Door CO INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| IFIndustrial Finishing INC | Delano | MN | — | ◇ UNVERIFIED |
| IWIndustrial & Wholesale Lumber | Schiller Park | IL | — | ◇ UNVERIFIED |
| IFIndustrias Feliciano Aluminum INC | Arecibo | PR | — | ◇ UNVERIFIED |
| IFIndustrias Feliciano Aluminum, INC. | Aguadilla | PR | — | ◇ UNVERIFIED |
| IWInfinity Windows & Doors Manufacture LLC | Aguas Buenas | PR | — | ◇ UNVERIFIED |
| IBInnovation By Degro INC | Coto Laurel | PR | — | ◇ UNVERIFIED |
| IMInnovations Manufacturing INC | Denver | CO | — | ◇ UNVERIFIED |
| IDInnovative Door & Millworks | Tacoma | WA | — | ◇ UNVERIFIED |
| IInterclad | Plymouth | MN | — | ◇ UNVERIFIED |
| ISIntermountain Shutters & Blinds LLC | Midvale | UT | — | ◇ UNVERIFIED |
| IAInternational Aluminum CORP Dba International Win | Hayward | CA | — | ◇ UNVERIFIED |
 International Door, INC. | North Kingstown | RI | — | ◇ UNVERIFIED |
| IIInternational Impact Building Products LLC | West Palm Bch | FL | — | ◇ UNVERIFIED |
| IIIntigral, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| IDIronwood Door & Moulding, INC. | Phoenix | AZ | — | ◇ UNVERIFIED |
| ISIsland Screen INC. | Waipahu | HI | — | ◇ UNVERIFIED |
| ISIsland Shutter Company, INC. | South Daytona | FL | — | ◇ UNVERIFIED |
| ISIsland Style Windows and Doors, Inc. | Naples | FL | — | ◇ UNVERIFIED |
| IPIvyland Properties, LP | Montgomery Township | PA | — | ◇ UNVERIFIED |
| JIJada INC | Grass Valley | CA | — | ◇ UNVERIFIED |
| JIJ&A Innovations LLC | Lakewood | CO | — | ◇ UNVERIFIED |
| JVJajc Ventures LLC | Northport | MI | — | ◇ UNVERIFIED |
| JSJansen Shutters & Specialties | Venice | FL | — | ◇ UNVERIFIED |
| JIJanus International | Orlando | FL | — | ◇ UNVERIFIED |
| JIJanus International Group, LLC | Surprise | AZ | — | ◇ UNVERIFIED |
| JOJb O'meara CO | Burnsville | MN | — | ◇ UNVERIFIED |
| JFJEFFREY FILIPOV dba NORTHSHORE BARN DOORS | S Hamilton | MA | — | ◇ UNVERIFIED |
| JTJeffrey Trott Industries INC | Orange | CA | — | ◇ UNVERIFIED |
| JMJej Molding | Nappanee | IN | — | ◇ UNVERIFIED |
| JWJeld Wen | Everett | WA | — | ◇ UNVERIFIED |
| JWJeld Wen | Ozark | AL | — | ◇ UNVERIFIED |
| JJeld-wen | Wedowee | AL | — | ◇ UNVERIFIED |
| JJeld-wen | Rantoul | IL | — | ◇ UNVERIFIED |
| JJeld-wen | Stayton | OR | — | ◇ UNVERIFIED |
| JDJeld-wen Door Systems - Mercantile Ln | Kissimmee | FL | — | ◇ UNVERIFIED |
| JHJeld-wen Holding, INC. | Venice | FL | — | ◇ UNVERIFIED |
| JWJeld Wen INC | Sidman | PA | — | ◇ UNVERIFIED |
| JWJeld Wen INC | Spokane | WA | — | ◇ UNVERIFIED |
| JWJeld Wen INC | Redmond | OR | — | ◇ UNVERIFIED |
| JWJeld Wen INC | Klamath Falls | OR | — | ◇ UNVERIFIED |
| JWJeld Wen INC. | Christiansburg | VA | — | ◇ UNVERIFIED |
| JIJeld-wen INC | Bend | OR | — | ◇ UNVERIFIED |
| JIJeld-wen INC | Ludlow | VT | — | ◇ UNVERIFIED |
| JIJeld-wen INC. | Rocklin | CA | — | ◇ UNVERIFIED |
| JIJeld-wen Interior Door - Grand Rapids | Grand Rapids | MI | — | ◇ UNVERIFIED |
| JIJeld-wen Interior Door - Grand Rapids (b8603) | Grand Rapids | MI | — | ◇ UNVERIFIED |
| JWJeld-wen Window & Doors | Etna | OH | — | ◇ UNVERIFIED |
| JWJeld Wen Windows | Grinnell | IA | — | ◇ UNVERIFIED |
| JWJeld Wen Windows and Doors | Lexington | NC | — | ◇ UNVERIFIED |
| JWJeld-wen Windows & Doors INC. | Kissimmee | FL | — | ◇ UNVERIFIED |
| JWJeld-wen Windows & Doors, Interior Doors Rocklin | Rocklin | CA | — | ◇ UNVERIFIED |
| JGJennifer's Glassworks LLC | Atlanta | GA | — | ◇ UNVERIFIED |
| JGJens Glass Company, INC. | Hamburg | NY | — | ◇ UNVERIFIED |
| JJJ & J Door Manufacturing, INC. | Panama City | FL | — | ◇ UNVERIFIED |
| JJJ & J Door Mfg | Panama City | FL | — | ◇ UNVERIFIED |
| JSJjj Specialty | Elk River | MN | — | ◇ UNVERIFIED |
| JJJ. Joiners, LLC | Hamden | CT | — | ◇ UNVERIFIED |
