| HIHexagram INC | Beachwood | OH | — | ◇ UNVERIFIED |
| HHH H Electronics INC | Twinsburg | OH | — | ◇ UNVERIFIED |
| HIHickok INC. | Greenwood | MS | — | ◇ UNVERIFIED |
| HCHigh Country Tek INC | Nevada City | CA | — | ◇ UNVERIFIED |
| HHHighland Holdings, LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
 Highland Technology INC | San Francisco | CA | — | ◇ UNVERIFIED |
| HTHigh Tech X-ray | Carmichael | CA | — | ◇ UNVERIFIED |
| HPHi Performance of America LLC | Riverside | CA | — | ◇ UNVERIFIED |
| HHirsch | Santa Ana | CA | — | ◇ UNVERIFIED |
| HCHitachi Cable Automotive Products Usa, INC. | Pensacola | FL | — | ◇ UNVERIFIED |
| HEHitachi Electronic | Mauldin | SC | — | ◇ UNVERIFIED |
| HEHi-tech Electronic Assemblies INC | Council Bluffs | IA | — | ◇ UNVERIFIED |
| HTHi Tec Partners, INC Dba Technica USA | Santa Ana | CA | — | ◇ UNVERIFIED |
| HPHonda Parts Unlimited | Sun Valley | CA | — | ◇ UNVERIFIED |
| HHoneywell | Danville | IL | — | ◇ UNVERIFIED |
| HHoneywell | Irving | TX | — | ◇ UNVERIFIED |
| HAHoneywell Advanced Circuits, INC. | Roseville | MN | — | ◇ UNVERIFIED |
| HAHoneywell Aerospace - Coon Rapids | Coon Rapids | MN | — | ◇ UNVERIFIED |
| HAHoneywell Aerospace - Golden Valley Operations | Golden Valley | MN | — | ◇ UNVERIFIED |
| HEHoneywell Electronic Materials INC | Buffalo | MN | — | ◇ UNVERIFIED |
| HIHoneywell INC Tampa Div | Tampa | FL | — | ◇ UNVERIFIED |
| HIHoneywell International INC | Galena | IL | — | ◇ UNVERIFIED |
| HIHoneywell International, INC. | Teterboro | NJ | — | ◇ UNVERIFIED |
| HIHoneywell International INC - Minnetonka | Minnetonka | MN | — | ◇ UNVERIFIED |
| HSHoneywell Sensing and Control | Acton | MA | — | ◇ UNVERIFIED |
| HTHoneywell Technology Solutions INC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HVHouston Valve Sales | Lynwood | CA | — | ◇ UNVERIFIED |
| HCHoya Corporation USA | Fremont | CA | — | ◇ UNVERIFIED |
| HHHoya Holdings | Milpitas | CA | — | ◇ UNVERIFIED |
| HMHoyt Mfg CORP | Westport | MA | — | ◇ UNVERIFIED |
| HIHp INC C/o Stantec Consulting Services INC | Santa Rosa | CA | — | ◇ UNVERIFIED |
| HTHr Textron INC | Valencia | CA | — | ◇ UNVERIFIED |
| HAHughes Aircraft CO Sp & Comm G | Los Angeles | CA | — | ◇ UNVERIFIED |
 Hughes Circuits, Inc. | Carlsbad | CA | — | ◇ UNVERIFIED |
| HNHughes Network Systems LLC | San Diego | CA | — | ◇ UNVERIFIED |
| HSHughes SMCC, LLC | San Marcos | CA | — | ◇ UNVERIFIED |
| HTHughes Technical Services Comp | Long Beach | CA | — | ◇ UNVERIFIED |
| HEHugo Engineering CO INC | Torrance | CA | — | ◇ UNVERIFIED |
| HGHunter Guages | Yarmouth Port | MA | — | ◇ UNVERIFIED |
| HTHunter Technology CORP | Santa Clara | CA | — | ◇ UNVERIFIED |
| HTHunter Technology Corporation | Santa Clara | CA | — | ◇ UNVERIFIED |
| HTHutchinson Technology INC | Hutchinson | MN | — | ◇ UNVERIFIED |
| HIHybripak INC (former) | Avon | MA | — | ◇ UNVERIFIED |
| HIHydra-flex INC | Eagan | MN | — | ◇ UNVERIFIED |
| HEHydraulic Electric | El Cajon | CA | — | ◇ UNVERIFIED |
| HCHyster CO | Commerce | CA | — | ◇ UNVERIFIED |
| HGHytel Group | Elgin | IL | — | ◇ UNVERIFIED |
| HMHyundai Mobis North America Electrified Powertrain Pe Plant Richmond Hill | Richmond Hill | GA | — | ◇ UNVERIFIED |
| HSHyve Solution | Fremont | CA | — | ◇ UNVERIFIED |
| IEI3 Electronics INC | Endicott | NY | — | ◇ UNVERIFIED |
| ICIbm Corporation | Endicott | NY | — | ◇ UNVERIFIED |
| IHIce House America | Moultrie | GA | — | ◇ UNVERIFIED |
| IIIdaho Instrument INC | Twin Falls | ID | — | ◇ UNVERIFIED |
| IAIdd Aerospace Corporation | Redmond | WA | — | ◇ UNVERIFIED |
| ICIdec Corporation | Sunnyvale | CA | — | ◇ UNVERIFIED |
| IEIec Electronics CORP | Newark | NY | — | ◇ UNVERIFIED |
| IIIkan International CORP | Houston | TX | — | ◇ UNVERIFIED |
| IAIkonic Auto Garage Ikonic Ag LTD | North Hollywood | CA | — | ◇ UNVERIFIED |
| ISIllinois Superconductor CORP | Mount Prospect | IL | — | ◇ UNVERIFIED |
| ITIllinois Tool Works Chronomatic | Chicago | IL | — | ◇ UNVERIFIED |
| IIIloka INC | Englewood | CO | — | ◇ UNVERIFIED |
| ICImage Circuit INC | Elgin | IL | — | ◇ UNVERIFIED |
| ICImation CORP. | Camarillo | CA | — | ◇ UNVERIFIED |
| IYImeco York International | Dixon | IL | — | ◇ UNVERIFIED |
| ICImi Cornelius INC | Anoka | MN | — | ◇ UNVERIFIED |
| IIImi Incorporated | Haverhill | MA | — | ◇ UNVERIFIED |
| IIIn2connect INC | Cullman | AL | — | ◇ UNVERIFIED |
| ITIndiana Technology INC. Dba Wire Design | Elkhart | IN | — | ◇ UNVERIFIED |
| ISIndigo Systems Corporation | Goleta | CA | — | ◇ UNVERIFIED |
| ICIndustrial Cleaning Systems INC | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| IEIndustrial Electronic Engineer | Van Nuys | CA | — | ◇ UNVERIFIED |
| IMIndustrial Machine & Mfg CO | South El Monte | CA | — | ◇ UNVERIFIED |
| ITIndustrial Technology LLC | Young Harris | GA | — | ◇ UNVERIFIED |
| ICInfiniti Circuit Solutions | San Jose | CA | — | ◇ UNVERIFIED |
| ISInfiniti Solutions USA INC | San Jose | CA | — | ◇ UNVERIFIED |
| ISInfiniti Solutions Usa, INC | San Jose | CA | — | ◇ UNVERIFIED |
| IDInformational Data Technologies LLC | Watertown | SD | — | ◇ UNVERIFIED |
| IPInfrared Products - L-3 | Garland | TX | — | ◇ UNVERIFIED |
| IJInk Jet Technology | San Jose | CA | — | ◇ UNVERIFIED |
| IBInnerstep Bse INC | Scotts Valley | CA | — | ◇ UNVERIFIED |
| IAInnova Aviation - Aircraft Maintenance | Burbank | CA | — | ◇ UNVERIFIED |
| IIInnovalight, INC | Sunnyvale | CA | — | ◇ UNVERIFIED |
| IMIntegrated Manufacturing Solutions LLC | Shakopee | MN | — | ◇ UNVERIFIED |
 Integrated Optical Services Corporation | Loomis | CA | — | ◇ UNVERIFIED |
| IEIntegration Electronics Corporation | Richardson | TX | — | ◇ UNVERIFIED |
| ICIntel CORP - Eau Claire | Eau Claire | WI | — | ◇ UNVERIFIED |
| ITIntelicoat Technologies Azon LLC | Union | NY | — | ◇ UNVERIFIED |
| ITInterconnect Tech Div Litton Systems INC | Springfield | MO | — | ◇ UNVERIFIED |
| IHInterlocken Hh LLC / Meggitt Dba Piezo Technologies | Broomfield | CO | — | ◇ UNVERIFIED |
| IAInternational Automotive Components Group North America, INC. | Springfield | TN | — | ◇ UNVERIFIED |
 International Business Machines CORP | Lexington | KY | — | ◇ UNVERIFIED |
| International Business Machines Corporation | Rtp | NC | — | ◇ UNVERIFIED |
| ICInternational Concrete Solutions LLC | Traverse City | MI | — | ◇ UNVERIFIED |
| IRInternational Rectifier Hi-rel | Santa Clara | CA | — | ◇ UNVERIFIED |
| ITInternational Transducer Division | Santa Barbara | CA | — | ◇ UNVERIFIED |
 Interocean Systems LLC | San Diego | CA | — | ◇ UNVERIFIED |
| IEInterstate Engineering a Div | Anaheim | CA | — | ◇ UNVERIFIED |
| IEIntl Electronic Research CORP | Burbank | CA | — | ◇ UNVERIFIED |
| IIpr | Baldwin Park | CA | — | ◇ UNVERIFIED |
| ILIsola Laminates INC. | La Crosse | WI | — | ◇ UNVERIFIED |
