| HFHamilton Farm Equipment Center Okanogan | Okanogan | WA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| HMHammersmith Mfg & Sales | Holton | KS | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| HAH and M Machine | Fraser | MI | Machinery Manufacturing333515 | — | ◇ UNVERIFIED |
| HCHanford Commodities LLC | Hanford | CA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| HAHanson Aggregates Bmc/whitney Quarry | Latrobe | PA | Machinery Manufacturing333611 | — | ◇ UNVERIFIED |
| HFHarbor Freight Tools USA INC #3083 | Summersville | WV | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| HHHardy Harvester | College City | CA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| HHHarkness Hall Limited | Fredericksburg | VA | Machinery Manufacturing333310 | — | ◇ UNVERIFIED |
| HCHarlo Corporation | Grandville | MI | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| HCHarmony Cleaners & Alterations | Harmony | PA | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| HWHarris Water Conditioning | Oxnard | CA | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| HTHarsco Track Technologies | Fairmont | MN | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
 Harsh International (was Hydraulics Unl) | Eaton | CO | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| HIHartness International | Greenville | SC | Machinery Manufacturing333993 | — | ◇ UNVERIFIED |
| HFHartzell Fan Incorporated | Portland | IN | Machinery Manufacturing333412 | — | ◇ UNVERIFIED |
| HHHastings Hvac INC Cold Storage | Hastings | NE | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| HBHauck Burner Mfg Cleona | Cleona | PA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| HMHauck Mfg Co/lebanon Plt | Lebanon | PA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| HIHaulmark Industries INC. | Fitzgerald | GA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| HRHauni Richmond INC | Richmond | VA | Machinery Manufacturing333298 | — | ◇ UNVERIFIED |
| HLHawkeye Leisure Trailers, LTD | Humboldt | IA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| HIHawk Industries Incorporated | Long Beach | CA | Machinery Manufacturing333132 | — | ◇ UNVERIFIED |
| HRHcma Rhq | Newnan | GA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| HMHeadco Machine Works | Keokuk | IA | Machinery Manufacturing333318 | — | ◇ UNVERIFIED |
| HWHeatcraft Worldwide Refrigeration | Danville | IL | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| HTHeath Tecna INC | Bellingham | WA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| HIHeattek INC West Allis | West Allis | WI | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| HTHeat Timer CORP | Fairfield | NJ | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| HCHedges Creek Business Center | Tualatin | OR | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| HMHeidelberg Materials Ne Llc/torrance Quarry | Blairsville | PA | Machinery Manufacturing333613 | — | ◇ UNVERIFIED |
| HMHenke Mfg. | Leavenworth | KS | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| HCHercules CORP | Hicksville | NY | Machinery Manufacturing333312 | — | ◇ UNVERIFIED |
| HMHercules Machinery Corporation | Fort Wayne | IN | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
| HTHercules Tool & Die LLC | Warren | MI | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| HRHf Rubber Machinery INC | Topeka | KS | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| HAHh Arnold Company INC | Rockland | MA | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| HTHigh Tech Asemblies | Lowell | MA | Machinery Manufacturing333998 | — | ◇ UNVERIFIED |
| HDHighwood Die & Engineering | Waterford | MI | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| HHillphoenix | Covington | GA | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| HIHilman INC @ Marlboro Ind Pk | Marlboro | NJ | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| HIHilton Intl Industries INC | Sarasota | FL | Machinery Manufacturing333248 | — | ◇ UNVERIFIED |
| HRHi Roller Conveyors | Sioux Falls | SD | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| HSHitachi Seiki USA INC | Congers | NY | Machinery Manufacturing333512 | — | ◇ UNVERIFIED |
| HRHi-tek Rubber INC - Ogilvie | Ogilvie | MN | Machinery Manufacturing333922 | — | ◇ UNVERIFIED |
| HCHi-vac Corporation | Marietta | OH | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| HLH Loeb Corporation | New Bedford | MA | Machinery Manufacturing333514 | — | ◇ UNVERIFIED |
| HPHms Products Company | Troy | MI | Machinery Manufacturing333921 | — | ◇ UNVERIFIED |
| HBHobart Bakery Systems Orting | Orting | WA | Machinery Manufacturing333241 | — | ◇ UNVERIFIED |
| HIHohl Industrial Services INC | Tonawanda | NY | Machinery Manufacturing333923 | — | ◇ UNVERIFIED |
| HIHolcim (us) INC | Des Moines | IA | Machinery Manufacturing333120 | — | ◇ UNVERIFIED |
