| GAGulassa and CO INC | Seattle | WA | — | ◇ UNVERIFIED |
| GAGulf Aluminum Products, INC. | Largo | FL | — | ◇ UNVERIFIED |
| GCGulf Coast Metal Works INC. | Cape Coral | FL | — | ◇ UNVERIFIED |
| GDGutter Drain, INC. | Mary Esther | FL | — | ◇ UNVERIFIED |
| HIHall Industrial Services | Wichita | KS | — | ◇ UNVERIFIED |
 Handling Systems INC. | La Grange | IL | — | ◇ UNVERIFIED |
| HIHannah's Iron Works | Philadelphia | PA | — | ◇ UNVERIFIED |
| HOHanover Outdoor Products, Inc. | Hanover | PA | — | ◇ UNVERIFIED |
| HIHansford Industries INC Dba Viking Steel | Sacramento | CA | — | ◇ UNVERIFIED |
| HFHardware Factory Store | Covina | CA | — | ◇ UNVERIFIED |
| HIHarsco Industrial Ikg | Garrett | IN | — | ◇ UNVERIFIED |
| HIHarsco Industrial Ikg | Channelview | TX | — | ◇ UNVERIFIED |
| HIHb Ives | New Haven | CT | — | ◇ UNVERIFIED |
| HAHenkels and Mccoy | Baldwin Park | CA | — | ◇ UNVERIFIED |
| HHerc | Granite Bay | CA | — | ◇ UNVERIFIED |
| HWHercules Wrought Iron Works INC | Chantilly | VA | — | ◇ UNVERIFIED |
| HWHernandez Wrought Iron, INC. | Ontario | CA | — | ◇ UNVERIFIED |
| HMHerndon & Merry INC | Nashville | TN | — | ◇ UNVERIFIED |
| HSHfs Socal INC | Azusa | CA | — | ◇ UNVERIFIED |
| HMHG Metals | Indianapolis | IN | — | ◇ UNVERIFIED |
| HHH & H Farm Products Manufacturing | Bolivar | MO | — | ◇ UNVERIFIED |
| HOHighland Ornamental Ironworks INC | Berryville | VA | — | ◇ UNVERIFIED |
| HIHiler's Ironworks LLC | Cave Junction | OR | — | ◇ UNVERIFIED |
| HCHill Crane Services INC | North Palm Springs | CA | — | ◇ UNVERIFIED |
| HNHimco National | Torrance | CA | — | ◇ UNVERIFIED |
| HNHimco Natl INC | Los Angeles | CA | — | ◇ UNVERIFIED |
| HSHi Style Metal Design, Akop Pisikyan Dba | Sun Valley | CA | — | ◇ UNVERIFIED |
| HJH J Crane Services, LLC. | Ponte Vedra | FL | — | ◇ UNVERIFIED |
| HCHolchris CORP Dba Stahl Mfg of the Bluegrass | Frankfort | KY | — | ◇ UNVERIFIED |
| HBHoof Beat Gates & Corrals | Fallon | NV | — | ◇ UNVERIFIED |
| HEHoover Electric CO Div Telefle | Los Angeles | CA | — | ◇ UNVERIFIED |
| HHHorns & Hoofs Inc | Vernon Hills | IL | — | ◇ UNVERIFIED |
| HCHosford & Company | Ann Arbor | MI | — | ◇ UNVERIFIED |
| HLHoss Lee Stairways, INC. | Roseville | CA | — | ◇ UNVERIFIED |
| HPHotcoats Powder Coating | Chico | CA | — | ◇ UNVERIFIED |
| HOHouse of Forgings, LLC | Houston | TX | — | ◇ UNVERIFIED |
 Howmedica Osteonics CORP | Murray | UT | — | ◇ UNVERIFIED |
| HRH R Leuenberger Incorporated | Allison Park | PA | — | ◇ UNVERIFIED |
| HHubzco | Saint Louis | MO | — | ◇ UNVERIFIED |
| HMHughes Metal Works, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| HDHunter Douglas Architectural Products INC. | Norcross | GA | — | ◇ UNVERIFIED |
| HMHunter Metal | Tahoe Vista | CA | — | ◇ UNVERIFIED |
| HIHydrohoist International Incorporated | Claremore | OK | — | ◇ UNVERIFIED |
| IEIan Eddy Blacksmith | Saxtons River | VT | — | ◇ UNVERIFIED |
| IIIda Installations, INC. | Southington | CT | — | ◇ UNVERIFIED |
| IMIgnacio Martinez Dba Sunset and Company | Apple Valley | CA | — | ◇ UNVERIFIED |
| IIIkg/borden (ikg Industries) | Leeds | AL | — | ◇ UNVERIFIED |
| IIIkg Industries | Nashville | TN | — | ◇ UNVERIFIED |
| IBImm Boatlifts INC | Fort Myers | FL | — | ◇ UNVERIFIED |
| IRImperial Rotary Dies | Santa Fe Spgs | CA | — | ◇ UNVERIFIED |
| ISImperial Steel Craft INC | Hillsboro | OR | — | ◇ UNVERIFIED |
| IPInd Polishing & Grinding/york | York | PA | — | ◇ UNVERIFIED |
| ILInesh LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| IIInnovations in Iron INC | Eugene | OR | — | ◇ UNVERIFIED |
| IAInnovative Architectural Solutions INC | Ontario | CA | — | ◇ UNVERIFIED |
| IMInnovative Metal Design INC | Troutdale | OR | — | ◇ UNVERIFIED |
| IMInnovative Metal Solutions | Mount Holly | NJ | — | ◇ UNVERIFIED |
| IIInstatech Industries, Inc. | Oakland Park | FL | — | ◇ UNVERIFIED |
| IEIntegrated Equipment Services | Westbury | NY | — | ◇ UNVERIFIED |
| IMIntegrated Machine Solutions, LLC | Saginaw | TX | — | ◇ UNVERIFIED |
| IIntellicept | El Cajon | CA | — | ◇ UNVERIFIED |
| IIInternational Iron Works LLC | Arvada | CO | — | ◇ UNVERIFIED |
| IWInternational West, INC Dba Continental Industries | Anaheim | CA | — | ◇ UNVERIFIED |
| IWInternational Wrought Iron Lt | Chino | CA | — | ◇ UNVERIFIED |
| ICIron City Iron Works Inc | Trussville | AL | — | ◇ UNVERIFIED |
| ICIron City Mfg INC | Pacoima | CA | — | ◇ UNVERIFIED |
| IIIronfire, INC | Brainerd | MN | — | ◇ UNVERIFIED |
| IGIron Gate Shoppe | Puyallup | WA | — | ◇ UNVERIFIED |
| IIIron Innovations, INC | Madison | MS | — | ◇ UNVERIFIED |
| IMIron Man Mize, LLC | Bogart | GA | — | ◇ UNVERIFIED |
| ILIron&Oak LLC | Bethel | CT | — | ◇ UNVERIFIED |
| IMIronside Metal Works | Arcata | CA | — | ◇ UNVERIFIED |
| IMIronstone Metal Works | San Carlos | CA | — | ◇ UNVERIFIED |
| ISIrontree Solutions, LLC | Williams | CA | — | ◇ UNVERIFIED |
| IWIron World Manufacturing LLC | Laurel | MD | — | ◇ UNVERIFIED |
| IBItw Building Components Group INC. | Earth City | MO | — | ◇ UNVERIFIED |
| JCJack's Custom Steel Products | Arcadia | OK | — | ◇ UNVERIFIED |
| JGJacob Gilliam | Bryan | TX | — | ◇ UNVERIFIED |
| JOJade Originals INC | Portland | OR | — | ◇ UNVERIFIED |
| JLJaecie Lopez | Ontario | OR | — | ◇ UNVERIFIED |
| JMJames M Kratzke | Perham | MN | — | ◇ UNVERIFIED |
| JRJames River Iron | Richmond | VA | — | ◇ UNVERIFIED |
| JCJays Custom Fabrication INC | Newberg | OR | — | ◇ UNVERIFIED |
| JMJ.b. Metal Works, INC. | Des Plaines | IL | — | ◇ UNVERIFIED |
| JCJBoessen Crane & Rigging LLC | Centertown | MO | — | ◇ UNVERIFIED |
| JAJ&c Artesanos En Acero, INC. | Juana Diaz | PR | — | ◇ UNVERIFIED |
| JIJC Iron Ornamental Works Inc | Mangonia Park | FL | — | ◇ UNVERIFIED |
| JIJC Iron Ornamental Works Inc | West Palm Beach | FL | — | ◇ UNVERIFIED |
| JIJC Iron Ornamental Works Inc | West Palm Beach | FL | — | ◇ UNVERIFIED |
| JDJ & D Excavation INC | Albuquerque | NM | — | ◇ UNVERIFIED |
| JPJdh Pacific, INC. | Fullerton | CA | — | ◇ UNVERIFIED |
| JDJ & D Manufacturing LLC | Madera | CA | — | ◇ UNVERIFIED |
| JSJD Stairs, Inc. | Las Vegas | NV | — | ◇ UNVERIFIED |
| JCJim Callahan Studio | Sonoma | CA | — | ◇ UNVERIFIED |
| JJJ & J Iron and Ornamental Work | Compton | CA | — | ◇ UNVERIFIED |
| JRJ&J Rail Sales, Inc. | Rochelle | IL | — | ◇ UNVERIFIED |
| JRJj Rebar Corportation | Sacramento | CA | — | ◇ UNVERIFIED |
| JWJj Water Works, INC. | Ceiba | PR | — | ◇ UNVERIFIED |
| JJJ J Welding Iron Works | Stockton | CA | — | ◇ UNVERIFIED |
| JEJlg Equip Svc Inc/success Dr Plt Mcconnellsburg | Mcconnellsburg | PA | — | ◇ UNVERIFIED |
