| HPHerlong Public Utility District | Herlong | CA | — | ◇ UNVERIFIED |
| HPHezzy Powder Coating INC | Anaheim | CA | — | ◇ UNVERIFIED |
| HHH & H Powdercoating INC | Fenton | MI | — | ◇ UNVERIFIED |
| HPHigh Performance Systems, INC. | Winter Haven | FL | — | ◇ UNVERIFIED |
| HPHighpoint Powder Coating | Liberty Hill | TX | — | ◇ UNVERIFIED |
| HTHigh Tech Coatings | Santa Ana | CA | — | ◇ UNVERIFIED |
| HTHigh Tech Coatings Usa, INC. | Santa Ana | CA | — | ◇ UNVERIFIED |
| HTHigh Tech Etch - 17220 Lemon | Hesperia | CA | — | ◇ UNVERIFIED |
| HPHightower Plating & Manufacturing CO | Orange | CA | — | ◇ UNVERIFIED |
| HTHillsdale Tool & Mfg CO | Jonesville | MI | — | ◇ UNVERIFIED |
| HDHitemco Div Barson Composites | Old Bethpage | NY | — | ◇ UNVERIFIED |
| HGHitemco Grinding Annex | Old Bethpage | NY | — | ◇ UNVERIFIED |
| HVHk Ventures Alliance Auto Details | Nashua | NH | — | ◇ UNVERIFIED |
| HMH. M. Elliott, INC. | Mooresville | NC | — | ◇ UNVERIFIED |
| HPH.m. Pan Cleaning | Longmont | CO | — | ◇ UNVERIFIED |
| HTHmt Transport | Baytown | TX | — | ◇ UNVERIFIED |
| HPHoliday Porcelain Enameling CO | Santa Fe Springs | CA | — | ◇ UNVERIFIED |
| HNHolland Nameplate & Engraving Co-holland Nameplate & Engraving CO | Kansas City | MO | — | ◇ UNVERIFIED |
| HPHolland Pump Company | West Palm Beach | FL | — | ◇ UNVERIFIED |
| HCHoosier Coatings LLC | Nappanee | IN | — | ◇ UNVERIFIED |
| HCHoosier Coatings, LLC | Nappanee | IN | — | ◇ UNVERIFIED |
| HUHouston Unlimited Metal Processing | Chappell Hill | TX | — | ◇ UNVERIFIED |
| HPHQ Powder Coating Inc. | Whitehall | NY | — | ◇ UNVERIFIED |
| HPHQ Powder Coating, Inc. | Whitehall | NY | — | ◇ UNVERIFIED |
| HGHt Gaston CORP | Rockford | IL | — | ◇ UNVERIFIED |
| HHHunter Holt | Lebanon | MO | — | ◇ UNVERIFIED |
| HRHuntley Realty Holdings INC | Huntley | IL | — | ◇ UNVERIFIED |
| HHHutchinson Hydrographics LLC | Hutchinson | MN | — | ◇ UNVERIFIED |
| HIHy-blast, INC. (1409070634) | Monroe | OH | — | ◇ UNVERIFIED |
| HLHydro-Dip, LLC | Baker City | OR | — | ◇ UNVERIFIED |
| HGHydro Gate Corporation | Selma | CA | — | ◇ UNVERIFIED |
| HEHygrade Electro Plating CO | Newark | NJ | — | ◇ UNVERIFIED |
| HPHytech Processing | Inglewood | CA | — | ◇ UNVERIFIED |
| IEI-90 Express Finishing, Inc. | Liberty Lake | WA | — | ◇ UNVERIFIED |
| ICIberville Coatings INC | Saint Gabriel | LA | — | ◇ UNVERIFIED |
| ICIdeal Coatings | Lafayette | LA | — | ◇ UNVERIFIED |
 Ideal Industries Lighting LLC Dba Cree Lighting | Racine | WI | — | ◇ UNVERIFIED |
| IPIdentification Plates | Mesquite | TX | — | ◇ UNVERIFIED |
| IIIhi Ionbond INC | Madison Heights | MI | — | ◇ UNVERIFIED |
| IIIhi Ionbond INC. | Rockaway | NJ | — | ◇ UNVERIFIED |
| IPIkon Powder Coating | Anaheim | CA | — | ◇ UNVERIFIED |
| IIIlosam Ingraving | Carrollton | TX | — | ◇ UNVERIFIED |
| IFImagineering Finishing Technologies | South Bend | IN | — | ◇ UNVERIFIED |
| ISImagineering Solutions LLC | Indianapolis | IN | — | ◇ UNVERIFIED |
| IAImpact Alloys Foundry | Dallesport | WA | — | ◇ UNVERIFIED |
| ICImperial Casting Company, INC. | Florence | AL | — | ◇ UNVERIFIED |
| IImpreglon | Woonsocket | RI | — | ◇ UNVERIFIED |
| ISImpreglon Surface Engineering Satsuma Facility | Houston | TX | — | ◇ UNVERIFIED |
| IIImprex INC | Milwaukee | WI | — | ◇ UNVERIFIED |
| I4Indigo 48, LLC | Montpelier | OH | — | ◇ UNVERIFIED |
| IAIndustrial Abrasive Blasting and Coating | Compton | CA | — | ◇ UNVERIFIED |
| IAIndustrial and Commercial Finishing | Johnston | RI | — | ◇ UNVERIFIED |
| ICIndustrial Coating Services INC Dba Gustafson | Minneapolis | MN | — | ◇ UNVERIFIED |
| ICIndustrial Coatings & Fireproofing | New Iberia | LA | — | ◇ UNVERIFIED |
| ICIndustrial Coating Solutions (0125044168) | Columbus | OH | — | ◇ UNVERIFIED |
| ICIndustrial & Custom Powder Coating, INC. | Decatur | IL | — | ◇ UNVERIFIED |
| IDIndustrial Design & Construction INC | Bakersfield | CA | — | ◇ UNVERIFIED |
| IEIndustrial Engraving INC | Saint Paul | MN | — | ◇ UNVERIFIED |
| IEIndustrial Etching INC | E Longmeadow | MA | — | ◇ UNVERIFIED |
| IFIndustrial Finishing CO. of Racine, INC. | Racine | WI | — | ◇ UNVERIFIED |
| IFIndustrial Finishing INC | Delano | MN | — | ◇ UNVERIFIED |
| IFIndustrial Finishing Services INC | New York Mills | MN | — | ◇ UNVERIFIED |
| IGIndustrial Galvanizers America, INC. | Tampa | FL | — | ◇ UNVERIFIED |
| IMIndustrial Metal Coatings INC | Sterling Hts | MI | — | ◇ UNVERIFIED |
| IMIndustrial Mill Maintenance INC | Youngstown | OH | — | ◇ UNVERIFIED |
| IPIndustrial Painting Specialists | Hugo | MN | — | ◇ UNVERIFIED |
| IPIndustrial Plating CO | San Carlos | CA | — | ◇ UNVERIFIED |
| IPIndustrial Plating & Machine, Inc., Princeton | Princeton | WV | — | ◇ UNVERIFIED |
| IPIndustrial Process and Sensor, INC. | Alton | IL | — | ◇ UNVERIFIED |
| IAInferno Art Foundry INC. | Union City | GA | — | ◇ UNVERIFIED |
| IHInfinity Holdings Company LLC | Terryville | CT | — | ◇ UNVERIFIED |
| ISInfinity Surfacing & Refinishing LLC | Terryville | CT | — | ◇ UNVERIFIED |
| IIInko Industrial Corporation | Sunnyvale | CA | — | ◇ UNVERIFIED |
| IFInland Fndy CO INC | Mead | WA | — | ◇ UNVERIFIED |
| IEInnovation Engrave & Design, INC. | Portage | IN | — | ◇ UNVERIFIED |
| IFInnovative Finishers, INC. | Telford | PA | — | ◇ UNVERIFIED |
| IRInnovative Rubber Technologies INC | Wapakoneta | OH | — | ◇ UNVERIFIED |
| IMIntell Metal Finishing | San Jose | CA | — | ◇ UNVERIFIED |
| ICInter-city Contracting, INC | Coventry | RI | — | ◇ UNVERIFIED |
| ILInterflex LLC | Spartanburg | SC | — | ◇ UNVERIFIED |
 Interior Services and Design | Fresno | CA | — | ◇ UNVERIFIED |
| IGIntermetallic Group, LLC | Houston | TX | — | ◇ UNVERIFIED |
| ICIntermet Corporation Radford | Radford | VA | — | ◇ UNVERIFIED |
| IDIntermet Decatur Foundry | Decatur | IL | — | ◇ UNVERIFIED |
| IHIntermet Havana Foundry | Havana | IL | — | ◇ UNVERIFIED |
| IIIntermet Ironton Foundry | Ironton | OH | — | ◇ UNVERIFIED |
| IAInternational Agile Manufacturing LLC | Statesboro | GA | — | ◇ UNVERIFIED |
| IEInternational Etching INC. | Providence | RI | — | ◇ UNVERIFIED |
| IPInternational Processing CO of America | Elk Grove Village | IL | — | ◇ UNVERIFIED |
| ICInterstate Castings | Indianapolis | IN | — | ◇ UNVERIFIED |
| ILIonbond LLC | Wilsonville | OR | — | ◇ UNVERIFIED |
| ILIonbond, LLC | Greensboro | NC | — | ◇ UNVERIFIED |
| ICIon Coatings, LLC | Savannah | GA | — | ◇ UNVERIFIED |
| ILIra L. Griffin Sons, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| IHIron Hand Commercial & Industrial Services | Blue Springs | MO | — | ◇ UNVERIFIED |
| IRIron Rod | Los Gatos | CA | — | ◇ UNVERIFIED |
| ICIsp Coatings | Romeo | MI | — | ◇ UNVERIFIED |
| ICItalix Company, Incorporated | Santa Clara | CA | — | ◇ UNVERIFIED |
| IIITI Investment Group L.L.C. | Ramsey | MN | — | ◇ UNVERIFIED |
| IIITI Investment Group, LLC | Anoka | MN | — | ◇ UNVERIFIED |
