| HMHeritage Metal LLC | Tazewell | VA | — | ◇ UNVERIFIED |
| HSHg Solutions | Garland | TX | — | ◇ UNVERIFIED |
| HHH & H Metal Fabrication | Lawton | IA | — | ◇ UNVERIFIED |
| HSH&h Sheetmetal, INC. | Russellville | KY | — | ◇ UNVERIFIED |
| HBHicks Brothers Property LLC | Kalamazoo | MI | — | ◇ UNVERIFIED |
| HMHighland Machine | Oak Hill | WV | — | ◇ UNVERIFIED |
| HMHightower Metal Works | Houston | TX | — | ◇ UNVERIFIED |
| HMHighway Metal Services, INC. | Cleveland | OH | — | ◇ UNVERIFIED |
| HMHildebrandt Machine | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| HFHilgert Family Properties, LLC | Pomona | CA | — | ◇ UNVERIFIED |
| HSHillcrest Sheet Metal, INC. | Bakersfield | CA | — | ◇ UNVERIFIED |
| HMHill Mfg LLC | Santa Clara | CA | — | ◇ UNVERIFIED |
| HSHillsboro Sheet Metal, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| HFHi-tech Fab, INC. | Shelbyville | TN | — | ◇ UNVERIFIED |
| HFHi-tech Fabrication, INC. | Raleigh | NC | — | ◇ UNVERIFIED |
| HIHi-tech Industries of New York | Johnson City | NY | — | ◇ UNVERIFIED |
| HTHi Tech Industries of New York, INC. | Johnson City | NY | — | ◇ UNVERIFIED |
| HSHj Shotwell CO | Minneapolis | MN | — | ◇ UNVERIFIED |
| HKH & K Tool & Die INC. | Stevens Point | WI | — | ◇ UNVERIFIED |
| HWHm White INC | Detroit | MI | — | ◇ UNVERIFIED |
| HEHoffman Enclosures INC Dba Pentair Technical | Anoka | MN | — | ◇ UNVERIFIED |
| HMHoffman Manufacturing, INC. | Fogelsville | PA | — | ◇ UNVERIFIED |
| HHHojalateria Hipolito Rosa INC | Aguada | PR | — | ◇ UNVERIFIED |
| HMHolbrook Merrill Co# | Sunnyvale | CA | — | ◇ UNVERIFIED |
| HSHolliday Sheet Metal CO. | Tyler | TX | — | ◇ UNVERIFIED |
| HIHolly Industries INC | Hornick | IA | — | ◇ UNVERIFIED |
| HMHolmboe Manufacturing CO. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| HIHoneywell International INC. | Tucson | AZ | — | ◇ UNVERIFIED |
| HTHon Tai CORP | Tamuning | GU | — | ◇ UNVERIFIED |
| HDHood Depot International INC | Deerfield Beach | FL | — | ◇ UNVERIFIED |
| HSHopewell Sheet Metal Manufacturing, LLC | Hagerstown | MD | — | ◇ UNVERIFIED |
| HSHorizon Sheet Metal, INC. | Springfield | MA | — | ◇ UNVERIFIED |
| HOHouse of Metal Enclosures Inc-house of Metal Enclosures INC | Hermann | MO | — | ◇ UNVERIFIED |
| HGHouston Global Heat Transfer LLC | Humble | TX | — | ◇ UNVERIFIED |
| HSHou-Tex Sheet Metal, Inc. | Houston | TX | — | ◇ UNVERIFIED |
| HEHoward's Engineering | Pico Rivera | CA | — | ◇ UNVERIFIED |
| HIHRB Industries Corp. | Saint Charles | IL | — | ◇ UNVERIFIED |
| HSH&r Sheet Metal | Los Angeles | CA | — | ◇ UNVERIFIED |
| HAHs Alloy, LLC | Denham Springs | LA | — | ◇ UNVERIFIED |
| HIHsi INC. Dba Harvey Sheet Metal, INC. | North Little Rock | AR | — | ◇ UNVERIFIED |
| HMHsi Mechanical INC | Modesto | CA | — | ◇ UNVERIFIED |
| HMHsi Mechanical, INC. | Honolulu | HI | — | ◇ UNVERIFIED |
| HSH & S Metals INC. | Baytown | TX | — | ◇ UNVERIFIED |
| HHHueston Holdings LLC | Holland | OH | — | ◇ UNVERIFIED |
| HIHumanetics Ii, LTD. | Mcallen | TX | — | ◇ UNVERIFIED |
| HSHuskey Sheet Metal Company | Chattanooga | TN | — | ◇ UNVERIFIED |
| HMHVAC Metal Home LLC | Linden | NJ | — | ◇ UNVERIFIED |
| HMHw Metal Products INC | Tualatin | OR | — | ◇ UNVERIFIED |
| HCHydac Cooling Systems (denver, Nc) | Denver | NC | — | ◇ UNVERIFIED |
| HIHydrodyne, INC. | Massillon | OH | — | ◇ UNVERIFIED |
| HAHyper Alloy INC | Roseville | MI | — | ◇ UNVERIFIED |
| ISIberia Sheet Metal, LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| ISIdeal Steel, INC. | Springfield | OH | — | ◇ UNVERIFIED |
| ISIGH Steel Fabrication Inc. | Lebanon | IN | — | ◇ UNVERIFIED |
| IMIko Metals | Ennis | TX | — | ◇ UNVERIFIED |
| IIIlten's INC. | Cedar Rapids | IA | — | ◇ UNVERIFIED |
| IRImco Reinforced Plastics INC | Moorestown | NJ | — | ◇ UNVERIFIED |
| IEImpact Employment INC | Salt Lake City | UT | — | ◇ UNVERIFIED |
| IHImpakt Holdings LLC Dba Dmp | Burlingame | CA | — | ◇ UNVERIFIED |
| IMImperial Manufacturing Group USA INC. | Alton | IL | — | ◇ UNVERIFIED |
| IAImpulse Air, INC | Jacksonville | FL | — | ◇ UNVERIFIED |
| IAIncast Asset Mgt. | West Sacramento | CA | — | ◇ UNVERIFIED |
| IHIndiana Heat Transfer CORP. | Plymouth | IN | — | ◇ UNVERIFIED |
| IMIndiana Model Company Incorporated - Plant 1 | Indianapolis | IN | — | ◇ UNVERIFIED |
| IMIndiana Model Company Incorporated - Plant 2 | Indianapolis | IN | — | ◇ UNVERIFIED |
| ICIndustrial Container Serv - Lakeland LLC | Auburndale | FL | — | ◇ UNVERIFIED |
| IFIndustrial Fabricators, INC - Vc Plant | Gastonia | NC | — | ◇ UNVERIFIED |
| IMIndustrial Machine and Engineering Company | Monett | MO | — | ◇ UNVERIFIED |
| IMIndustrial Manufacturing Solutions, LLC | Jennings | OK | — | ◇ UNVERIFIED |
| IMIndustrial Mechanical, INC. | Hartwell | GA | — | ◇ UNVERIFIED |
| IMIndustrial Metal Fabricators | Marine City | MI | — | ◇ UNVERIFIED |
| IMInfinity Manufactured Industries, INC. | Largo | FL | — | ◇ UNVERIFIED |
| IMInnovated Metal Fabrication Inc | Maplewood | MN | — | ◇ UNVERIFIED |
| IMInnovated Metal Fabrication Inc | Maplewood | MN | — | ◇ UNVERIFIED |
| IMInnovated Metal Fabrication INC | Blaine | MN | — | ◇ UNVERIFIED |
| IEInnovative Emergency Equipment | Riverside | CA | — | ◇ UNVERIFIED |
| ISInnovative Sheet Metals LLC | Bradenton | FL | — | ◇ UNVERIFIED |
| IMInox Market America | Muncie | IN | — | ◇ UNVERIFIED |
| IEIntegral Engineering & Fabrication INC | City of Industry | CA | — | ◇ UNVERIFIED |
| IDIntegrated Dynamic Metals Corp | Marlborough | MA | — | ◇ UNVERIFIED |
| IMIntegrated Manufacturing Solutions LLC | Shakopee | MN | — | ◇ UNVERIFIED |
| IFIntegrity Fleet Services | Pacific | WA | — | ◇ UNVERIFIED |
| IIIntellimetal, INC. | Rochester | NY | — | ◇ UNVERIFIED |
| IAInter American Oil Works INC. | Odessa | TX | — | ◇ UNVERIFIED |
| IIInterlock Industries, INC. | Independence | MO | — | ◇ UNVERIFIED |
| ICIntermountain Concrete Specialties | Idaho Falls | ID | — | ◇ UNVERIFIED |
| IMInterstate Manufacturing INC | Portland | OR | — | ◇ UNVERIFIED |
| ITIowa Techniques, INC. | Hutto | TX | — | ◇ UNVERIFIED |
| ICIron City Iron Works Inc | Tarrant | AL | — | ◇ UNVERIFIED |
| ILIronluxe, LLC | Phoenix | AZ | — | ◇ UNVERIFIED |
| IIIsotherm, INC. | Arlington | TX | — | ◇ UNVERIFIED |
| IItt | Panama City | FL | — | ◇ UNVERIFIED |
| JKJack Kennedy Metal Products & Bldgs INC | Langleyville | IL | — | ◇ UNVERIFIED |
| JFJackson Fabrication | Franklin | GA | — | ◇ UNVERIFIED |
| JPJaime Preciado | Los Angeles | CA | — | ◇ UNVERIFIED |
| JFJb Friction & Fab CORP. | Grafton | WI | — | ◇ UNVERIFIED |
| JCJBL Company LLC | Nampa | ID | — | ◇ UNVERIFIED |
| JIJbm, INC. | Knoxville | TN | — | ◇ UNVERIFIED |
| JCJcp&l Central Warehouse | Rockaway | NJ | — | ◇ UNVERIFIED |
| JFJD Fox Manufacturing, LLC | Fox Lake | WI | — | ◇ UNVERIFIED |
