| HHHd Hudson Manufacturing CO | Hastings | MN | — | ◇ UNVERIFIED |
| HFHdn F&a INC | Battle Creek | MI | — | ◇ UNVERIFIED |
| HCHeartland Co-op | Conroy | IA | — | ◇ UNVERIFIED |
| HFHeat Fab INC | Turners Falls | MA | — | ◇ UNVERIFIED |
 Helander Metal Spinning Company | Lombard | IL | — | ◇ UNVERIFIED |
| Helander Metal Spinning Company | Addison | IL | — | ◇ UNVERIFIED |
| HIHelgesen Industries INC | Hartford | WI | — | ◇ UNVERIFIED |
| HMHennemuth Metal Fabricators, INC. | Oakdale | PA | — | ◇ UNVERIFIED |
| HIHennig, INC. Marlin | Machesney Park | IL | — | ◇ UNVERIFIED |
| HVHenry Vie Svehaug & Betty Lorraine Svehaug | Milton Freewater | OR | — | ◇ UNVERIFIED |
| HSHercules Sheet Metal | Chalmette | LA | — | ◇ UNVERIFIED |
| HMHeritage Metal LLC | Tazewell | VA | — | ◇ UNVERIFIED |
| HCHerschel CORP | Indianola | IA | — | ◇ 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 |
| HSHills Stainless Steel and Equipment CO | Luverne | MN | — | ◇ UNVERIFIED |
| HVHill Valley Farm Service | Orange Cove | CA | — | ◇ 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 |
| HCHm Clause INC. | Davis | CA | — | ◇ 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 |
| HFHold’em Fence CO LLC | Council Grove | KS | — | ◇ UNVERIFIED |
| HSHolliday Sheet Metal CO. | Tyler | TX | — | ◇ UNVERIFIED |
| HIHolly Industries INC | Hornick | IA | — | ◇ UNVERIFIED |
| HMHolmboe Manufacturing CO. | Oklahoma City | OK | — | ◇ UNVERIFIED |
| HMHoltec Manufacturing | Turtle Creek | PA | — | ◇ 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 |
| HPHouston Process and Design | Houston | TX | — | ◇ UNVERIFIED |
| HPHouston Process and Design | Houston | TX | — | ◇ UNVERIFIED |
| HSHou-Tex Sheet Metal, Inc. | Houston | TX | — | ◇ UNVERIFIED |
| HGHp Gas Products | Baytown | TX | — | ◇ 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 Manufacturing Company INC | Clintonville | WI | — | ◇ UNVERIFIED |
| HSH & S Metals INC. | Baytown | TX | — | ◇ UNVERIFIED |
| HMH-s Mfg INC | Stephen | MN | — | ◇ UNVERIFIED |
| HHHueston Holdings LLC | Holland | OH | — | ◇ UNVERIFIED |
| HIHumanetics Ii, LTD. | Mcallen | TX | — | ◇ UNVERIFIED |
| HSHuskey Sheet Metal Company | Chattanooga | TN | — | ◇ UNVERIFIED |
| HIHutchinson Incorporated | Grinnell | IA | — | ◇ UNVERIFIED |
| HMHVAC Metal Home LLC | Linden | NJ | — | ◇ UNVERIFIED |
| HMHw Metal Products INC | Tualatin | OR | — | ◇ UNVERIFIED |
| HIHydra-mac INC | Thief River Falls | MN | — | ◇ UNVERIFIED |
| HOHydro Operating LLC Dba Hydro Engineering | Young America | MN | — | ◇ UNVERIFIED |
| HAHyper Alloy INC | Roseville | MI | — | ◇ UNVERIFIED |
| ISIberia Sheet Metal, LLC | New Iberia | LA | — | ◇ UNVERIFIED |
| IIcbiomedical | Cartersville | GA | — | ◇ 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 |
| IImagepoint:columbia | Columbia | SC | — | ◇ 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 |
| ISIna Store INC | Tustin | MI | — | ◇ UNVERIFIED |
| IAIncast Asset Mgt. | West Sacramento | CA | — | ◇ 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 |
| IIIndustrial Iron Works, INC. | Tifton | GA | — | ◇ UNVERIFIED |
| IMIndustrial Machine and Engineering Company | Monett | MO | — | ◇ UNVERIFIED |
| IMIndustrial Mechanical, INC. | Hartwell | GA | — | ◇ UNVERIFIED |
| IMIndustrial Metal Fabricators | Marine City | MI | — | ◇ UNVERIFIED |
| IRIndustrial Refractory Services, INC. | Fort Worth | TX | — | ◇ UNVERIFIED |
| ISIndustrial Services Corporation | Burlington | IA | — | ◇ UNVERIFIED |
| ISIndustrial Steel Manufacturing LLC | Arecibo | PR | — | ◇ UNVERIFIED |
| IMInfinity Manufactured Industries, INC. | Largo | FL | — | ◇ UNVERIFIED |
| IPIngersoll Products | Chicago | IL | — | ◇ UNVERIFIED |
| ILInland Lake Harvesters, Inc. | Burlington | WI | — | ◇ UNVERIFIED |
