| HCHighline Controls INC | Livermore | CA | — | ◇ UNVERIFIED |
| HPHigh Precision Partners LLC | Macedon | NY | — | ◇ UNVERIFIED |
| HMHi-Lite Machine Company | Oostburg | WI | — | ◇ UNVERIFIED |
| HEHillman Extrusion Tool INC | Lincoln | MI | — | ◇ UNVERIFIED |
| H2Hillsdale 210 Investments LLC | San Jose | CA | — | ◇ UNVERIFIED |
| HBHinton Brothers | Huntsville | AL | — | ◇ UNVERIFIED |
| HTHi-tech Tool Corporation | West Chester | OH | — | ◇ UNVERIFIED |
| HWHi-tech Welding | Lees Summit | MO | — | ◇ UNVERIFIED |
| HLHitek LLC | Saint Peters | MO | — | ◇ UNVERIFIED |
| HKH & K Tool and Machine Co., INC. | Huntingdon Valley | PA | — | ◇ UNVERIFIED |
| HLH Loeb Corporation | New Bedford | MA | — | ◇ UNVERIFIED |
| HGHm Global Precision | San Jose | CA | — | ◇ UNVERIFIED |
| HMH&m Machine & Tool, LLC | Toledo | OH | — | ◇ UNVERIFIED |
| HUH+m USA Management Company, Inc.dba Hinderer + Mue | Charlotte | NC | — | ◇ UNVERIFIED |
| HPHolts Precision, INC. | South Windsor | CT | — | ◇ UNVERIFIED |
| HTHomestead Tool and Machine INC | Coleman | MI | — | ◇ UNVERIFIED |
| HEHorel Enterprises LLC | Elk Mound | WI | — | ◇ UNVERIFIED |
| HMHorizon Machining LLC | Chandler | AZ | — | ◇ UNVERIFIED |
| HMHossfeld Manufacturing CO | Winona | MN | — | ◇ UNVERIFIED |
| HDHousewright Dies INC | Fridley | MN | — | ◇ UNVERIFIED |
| HMHr Machine "llc" | Moraine | OH | — | ◇ UNVERIFIED |
| HOHruby Orbital Systems, INC | Huntington Beach | CA | — | ◇ UNVERIFIED |
| HAHughes Aircraft Airport Site | Los Angeles | CA | — | ◇ UNVERIFIED |
| HOHuish Outdoors - Oceanside | Oceanside | CA | — | ◇ UNVERIFIED |
| HHumanmade | San Francisco | CA | — | ◇ UNVERIFIED |
| HMHuskin Machinery Company | Maryville | TN | — | ◇ UNVERIFIED |
| HMHyd Mech Pueblo Inc.cn | Pueblo | CO | — | ◇ UNVERIFIED |
| HOHydratight Operations INC | Concord | CA | — | ◇ UNVERIFIED |
| HOHydratight Operations INC | Red Wing | MN | — | ◇ UNVERIFIED |
| HSHydraulic Systems & Components INC Dba Rupe's Hydraulics | San Marcos | CA | — | ◇ UNVERIFIED |
| HIHypertherm INC | Lebanon | NH | — | ◇ UNVERIFIED |
| IMIb Machine CO | Anaheim | CA | — | ◇ UNVERIFIED |
| III-cam Industries | Murrieta | CA | — | ◇ UNVERIFIED |
| ILIea, LLC | Somers | WI | — | ◇ UNVERIFIED |
| IEI E and E Industries INC | Madison Heights | MI | — | ◇ UNVERIFIED |
| ITImf Tool CORP | Middle Village | NY | — | ◇ UNVERIFIED |
| IIImperial Industrial Supply, INC. | Memphis | TN | — | ◇ UNVERIFIED |
| IWImperial Wire Die INC | Mount Vernon | NY | — | ◇ UNVERIFIED |
 Independence Tooling Solutions | Troy | MI | — | ◇ UNVERIFIED |
| IDIndex Designs Cnc LLC | Chatsworth | CA | — | ◇ UNVERIFIED |
| IDIndustrial Die Systems, INC. | Walbridge | OH | — | ◇ UNVERIFIED |
| ILIndustrial Light and Magic | Glendale | CA | — | ◇ UNVERIFIED |
| IMIndustrial Machining Services | Fort Loramie | OH | — | ◇ UNVERIFIED |
| IPIndustrial Precision Grinding | Gardena | CA | — | ◇ UNVERIFIED |
| ISIndustrial Service and Design, LLC | Williamston | MI | — | ◇ UNVERIFIED |
| ITIndustrial Toolcrafters INC. | Galesville | WI | — | ◇ UNVERIFIED |
| ITIndustrial Tool INC | Minneapolis | MN | — | ◇ UNVERIFIED |
| ICIngersoll Cutting Tool CO Member of the Imc Group | Rockford | IL | — | ◇ UNVERIFIED |
| IMIn Motion LLC | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| ICInpro Corporation - Mercury 4 Building | Muskego | WI | — | ◇ UNVERIFIED |
