| HBHigh Bar Brands | Fresno | CA | — | ◇ UNVERIFIED |
| HPHigh Performance Heat Treating | Huntington | WV | — | ◇ UNVERIFIED |
| HQHigh Quality Machine INC | San Jose | CA | — | ◇ UNVERIFIED |
| HVHigh Velocity INC. | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| HBHillerich & Bradsby CO. INC. Sports Products | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| HHillphoenix | Covington | GA | — | ◇ UNVERIFIED |
| HMHino Motors Manufacturing U.s.a., INC. | Ontario | CA | — | ◇ UNVERIFIED |
| HTHi Tech Machine Shop LLC | Jurupa Valley | CA | — | ◇ UNVERIFIED |
| HDHolley Distribution Center | Bowling Green | KY | — | ◇ UNVERIFIED |
| HRHondas R&d Americas | Ann Arbor | MI | — | ◇ UNVERIFIED |
| HHoneywell | Englewood | CO | — | ◇ UNVERIFIED |
| HIHoneywell International, INC. | Murfreesboro | TN | — | ◇ UNVERIFIED |
| HLHoneywell Lng Dock Street | Palmetto | FL | — | ◇ UNVERIFIED |
| HCHoover Containment INC | Mira Loma | CA | — | ◇ UNVERIFIED |
| HUHoover Universal INC | Riverside | MO | — | ◇ UNVERIFIED |
| HMHopkins Manufacturing (stormwater) | Emporia | KS | — | ◇ UNVERIFIED |
| HIHoppo's INC Dba Hoppo's Custom Suspension | Riverside | CA | — | ◇ UNVERIFIED |
| HEHopsco Energy Products, LLC | Middle Point | OH | — | ◇ UNVERIFIED |
| HRHoru Racing | Rancho Cucamonga | CA | — | ◇ UNVERIFIED |
| HLHoundLab, LLC | Hayden | ID | — | ◇ UNVERIFIED |
| HEHoward's Engineering | Pico Rivera | CA | — | ◇ UNVERIFIED |
| HTHoyles Tire & Axle LLC | Maynardville | TN | — | ◇ UNVERIFIED |
| HEHrl Engineering & Manufacturing Dba Bel Air Machining | Santa Ana | CA | — | ◇ UNVERIFIED |
| HAHtna Al Plant | Jasper | AL | — | ◇ UNVERIFIED |
 Hughes Circuits INC Dba Hp Precision | San Marcos | CA | — | ◇ UNVERIFIED |
| HEHugo Engineering CO INC | Torrance | CA | — | ◇ UNVERIFIED |
| HMHuntingdon Mechanical Contractors, INC | Willow Grove | PA | — | ◇ UNVERIFIED |
| HAHurley and David | Springfield | MA | — | ◇ UNVERIFIED |
| HCHussmann CORP | Montgomery | AL | — | ◇ UNVERIFIED |
| HCHussmann CORP | Chino | CA | — | ◇ UNVERIFIED |
| HCHussmann CORP. | Sacramento | CA | — | ◇ UNVERIFIED |
| HCHussmann Corporation | Independence | MO | — | ◇ UNVERIFIED |
| HCHussmann Corporation | Sacramento | CA | — | ◇ UNVERIFIED |
| HCHussmann Corporation-gloversville | Gloversville | NY | — | ◇ UNVERIFIED |
| HCHussmann Corporation Site | Seattle | WA | — | ◇ UNVERIFIED |
| HAHutching Automotive Products INC | Sanford | FL | — | ◇ UNVERIFIED |
| HAHutchings Automotive Products INC | Sanford | FL | — | ◇ UNVERIFIED |
| HFHutchinson Fluid Management Systems, INC. | Livingston | TN | — | ◇ UNVERIFIED |
| HCHvac Cycle LLC | Jackson Heights | NY | — | ◇ UNVERIFIED |
| HMHVAC Mechanical LLC | New Baltimore | MI | — | ◇ UNVERIFIED |
| HPHydra Power Hydraulics INC | Savage | MN | — | ◇ UNVERIFIED |
| HAHydro Aluminum Bohn Puckett | Puckett | MS | — | ◇ UNVERIFIED |
| HPHye Precision INC | Anaheim | CA | — | ◇ UNVERIFIED |
| HMHyundai Mobis Alabama, LLC | Montgomery | AL | — | ◇ UNVERIFIED |
| ILIaire, LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| IGIbss Group INC | South San Francisco | CA | — | ◇ UNVERIFIED |
| IMIce Machines International INC | Myrtle Beach | SC | — | ◇ UNVERIFIED |
| ICI C Refrigeration Service INC | Gridley | CA | — | ◇ UNVERIFIED |
| IAIcy A/c INC. | Corpus Christi | TX | — | ◇ UNVERIFIED |
| IDID Designs | Temecula | CA | — | ◇ UNVERIFIED |
| ICIdeal Comfort Heating and Air Conditioning LLC | Springfield | MO | — | ◇ UNVERIFIED |
| IRIdiot Racing, LLC. | Tampa | FL | — | ◇ UNVERIFIED |
| IHIdyllwild Heating & Cooling, Inc. | Idyllwild | CA | — | ◇ UNVERIFIED |
| ITIhi Turbo America | Shelbyville | IL | — | ◇ UNVERIFIED |
| IDIk Distrbution | Winnetka | CA | — | ◇ UNVERIFIED |
| IFImaginary Fiberglass | Chino | CA | — | ◇ UNVERIFIED |
| ITImaginative Technologies INC | Santa Ana | CA | — | ◇ UNVERIFIED |
| ITImagine That | Santa Clarita | CA | — | ◇ UNVERIFIED |
| IWImetco West | Mcclellan | CA | — | ◇ UNVERIFIED |
| ICImi Cornelius INC | Anoka | MN | — | ◇ UNVERIFIED |
| ITImpco Technologies | Santa Ana | CA | — | ◇ UNVERIFIED |
| IGImperial Group, Mfg, INC. | Decatur | TX | — | ◇ UNVERIFIED |
| IRInalfa Roof Systems | Acworth | GA | — | ◇ UNVERIFIED |
| IRInalfa Roof Systems, Incorporated | Auburn Hills | MI | — | ◇ UNVERIFIED |
 Indak Manufacturing CORP. | Dahlonega | GA | — | ◇ UNVERIFIED |
| IPIndiana Precision Forge LLC | Shelbyville | IN | — | ◇ UNVERIFIED |
 Industrial Air, INC. | Greensboro | NC | — | ◇ UNVERIFIED |
| IDIndustrial Distribution Corporation, INC. | Irving | TX | — | ◇ UNVERIFIED |
| IEIndustrial Equipment Solutions | Corona | CA | — | ◇ UNVERIFIED |
| IGIndustrial Gas Springs INC. | Romeoville | IL | — | ◇ UNVERIFIED |
| IMIndustrial Machine Repair, INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| ISIndustrial Sheet Metal/trane | Rockingham | NC | — | ◇ UNVERIFIED |
| IVIndustrial Valco | Rancho Dominguez | CA | — | ◇ UNVERIFIED |
| IVIndustrial Ventilation INC | Ontario | OR | — | ◇ UNVERIFIED |
| IHIndustry Hoses & Fasteners | City of Industry | CA | — | ◇ UNVERIFIED |
| IPIndustry Products CO | Georgetown (scott) | KY | — | ◇ UNVERIFIED |
| ICIngersoll-rand Company Dba Trane | Lexington | KY | — | ◇ UNVERIFIED |
| IRIngersol Rand | Panama City | FL | — | ◇ UNVERIFIED |
| IRIngersol Rand | Hastings | NE | — | ◇ UNVERIFIED |
| IHInka HVAC Inc | Woodbridge | VA | — | ◇ UNVERIFIED |
| ITInnotive Tech, INC. | Auburn | AL | — | ◇ UNVERIFIED |
| IRInnov8 Racing, INC. | Corona | CA | — | ◇ UNVERIFIED |
| IRInnovative Refrigeration Systems INC | Appleton | WI | — | ◇ UNVERIFIED |
| IRInnovative Refrigeration Systems, INC. | Harmony | PA | — | ◇ UNVERIFIED |
| IMIn-place Machining CO LLC | San Diego | CA | — | ◇ UNVERIFIED |
| IMInput Manufacturing CORP | Santa Ana | CA | — | ◇ UNVERIFIED |
| IEInter-city Engery Systems, INC | Ontario | CA | — | ◇ UNVERIFIED |
| IAInterlink Automotive LLC | Novi | MI | — | ◇ UNVERIFIED |
| ITIntermet Technical Center | Lynchburg | VA | — | ◇ UNVERIFIED |
| IAInternational Automotive Componenets Group North America, INC. | Ft Mcclellan | AL | — | ◇ UNVERIFIED |
| IAInternational Automotive Components | Plymouth | MI | — | ◇ UNVERIFIED |
| IAInternational Automotive Components | Holmesville | OH | — | ◇ UNVERIFIED |
| ICInternational Cargo Equipment | Wilmington | CA | — | ◇ UNVERIFIED |
| ICInternational Comfort Prod INC | Lewisburg | TN | — | ◇ UNVERIFIED |
| ISInternational Shipyard LLC - Shipyard Facility | Larose | LA | — | ◇ UNVERIFIED |
| IWInternational West, INC Dba Continental Industries | Anaheim | CA | — | ◇ UNVERIFIED |
| IPInteva Products, LLC. | Brownsville | TX | — | ◇ UNVERIFIED |
| IIntuitive | Sunnyvale | CA | — | ◇ UNVERIFIED |
| IRIntuitive Racing Inc. | Oceanside | CA | — | ◇ UNVERIFIED |
| ITIrhythm Technologies | San Francisco | CA | — | ◇ UNVERIFIED |
