| HMHartz Mountain Industries INC | Secaucus | NJ | — | ◇ UNVERIFIED |
| HOHathaway One Stop | Harrisburg | IL | — | ◇ UNVERIFIED |
| HPHawaii Plating | Honolulu | HI | — | ◇ UNVERIFIED |
| HEHbm Electrochemical CO | Lansing | IL | — | ◇ UNVERIFIED |
| HPHearn Plating CO INC | Toledo | OH | — | ◇ UNVERIFIED |
| HMHeartland Memorial Center | Frankfort | IL | — | ◇ UNVERIFIED |
| HCHeaventree Candle CO | Wheeling | IL | — | ◇ UNVERIFIED |
| HLHeggem Lundquist | Denver | CO | — | ◇ UNVERIFIED |
| HUHeiche US Surface Technology INC | Spartanburg | SC | — | ◇ UNVERIFIED |
| HPHeidner Property Management | Buffalo Grove | IL | — | ◇ UNVERIFIED |
| HPHercules Polishing and Plating LLC | Canton | OH | — | ◇ UNVERIFIED |
| HFHeritage Fs-gibson City | Gibson City | IL | — | ◇ UNVERIFIED |
| HVHerr Voss Stamco Rci | New Ross | IN | — | ◇ UNVERIFIED |
| HCHess Carl | Freeport | IL | — | ◇ UNVERIFIED |
| HSHfw Solutions | Rapid City | SD | — | ◇ UNVERIFIED |
| HHH H Howard CORP | Chicago | IL | — | ◇ UNVERIFIED |
| HHH & H Specialties INC | City of Industry | CA | — | ◇ UNVERIFIED |
| HPHialeah Plating Shop INC | Hialeah | FL | — | ◇ UNVERIFIED |
| HSHickory Shores Resort | Carlyle | IL | — | ◇ UNVERIFIED |
| HFHighland Field Services LLC | Blossburg | PA | — | ◇ UNVERIFIED |
| HPHighland Precision Plating INC | Hillsboro | OH | — | ◇ UNVERIFIED |
| HSHighland Supply CORP | Highland | IL | — | ◇ UNVERIFIED |
| HPHigh Purity Technology | Poughkeepsie | NY | — | ◇ UNVERIFIED |
| HTHigh Tech Finishing | Houston | TX | — | ◇ UNVERIFIED |
| HCHill Cross Co., INC. | West New York | NJ | — | ◇ UNVERIFIED |
| HPHill Plating Incorporated | Springfield | MO | — | ◇ UNVERIFIED |
| HFHirsh Finishes, Dba Best Finishes, LLC | Colorado Springs | CO | — | ◇ UNVERIFIED |
| HIH I S Painting INC | Titusville | FL | — | ◇ UNVERIFIED |
| HMHi-tech Metals | Denton | TX | — | ◇ UNVERIFIED |
| HPHi-tech Plating | Erie | PA | — | ◇ UNVERIFIED |
| HTHi - Tec Plating INC | Statesville | NC | — | ◇ UNVERIFIED |
| HCHi-valley Chemical,. INC | Centerville | UT | — | ◇ UNVERIFIED |
| HQHm Quackenbush INC | Herkimer | NY | — | ◇ UNVERIFIED |
| HPHobart Plant #56 | Richmond Hill | GA | — | ◇ UNVERIFIED |
| HTHohn's Tank Wash | Danville | IL | — | ◇ UNVERIFIED |
| HRHollenbaugh Residence | Loves Park | IL | — | ◇ UNVERIFIED |
| HSHolly Sorey | Fisher | IL | — | ◇ UNVERIFIED |
| HTHolthaus Truck Services INC | Beckemeyer | IL | — | ◇ UNVERIFIED |
| HAHomer A. Doerr & Sons Plating Company | Saint Louis | MO | — | ◇ UNVERIFIED |
| HGHopwood Globe LTD | Malden | MA | — | ◇ UNVERIFIED |
| HMHoughton Manufacturing CO | Vicksburg | MI | — | ◇ UNVERIFIED |
| HOHouse of Silk Flowers INC | Beaufort | NC | — | ◇ UNVERIFIED |
| HPHouston Plating & Bumper | Houston | TX | — | ◇ UNVERIFIED |
| HPHouston Polytank | Hopkins | MO | — | ◇ UNVERIFIED |
| HTHp Tuners LLC | Buffalo Grove | IL | — | ◇ UNVERIFIED |
| HRH & R Plating Co-h & R Plating CO | Saint Louis | MO | — | ◇ UNVERIFIED |
| HMHughes Missile Systems CO | Pomona | CA | — | ◇ UNVERIFIED |
| HMHughes Missile Systems CO. Navajo Facility | Fort Defiance | AZ | — | ◇ UNVERIFIED |
| HPHughes Parker Industries, INC. | Lawrenceburg | TN | — | ◇ UNVERIFIED |
| HIHydramec Incorporated | Scio | NY | — | ◇ UNVERIFIED |
| HLHydrofera, LLC | Willimantic /c/ | CT | — | ◇ UNVERIFIED |
| HIHydromer INC @ Medway Ind Pk | Branchburg | NJ | — | ◇ UNVERIFIED |
| HEHypermax Engineering | Gilberts | IL | — | ◇ UNVERIFIED |
| IRIbc Recon Services | Portland | OR | — | ◇ UNVERIFIED |
| IIIcd Ironhorse INC | Monticello | IL | — | ◇ UNVERIFIED |
| IGIdeal Gerit Drum Ring Mfg | Bedford Park | IL | — | ◇ UNVERIFIED |
| IPIdeal Plating and Polishing INC | Providence | RI | — | ◇ UNVERIFIED |
| IPIdeal Plating & Polishing @ Belleville Ind Ct | Belleville | NJ | — | ◇ UNVERIFIED |
| ITIdeal Troy CO | Peoria | IL | — | ◇ UNVERIFIED |
| IIIfco Ics-chicago INC | Lockport | IL | — | ◇ UNVERIFIED |
| IBIl Bell Telephone CO Dba At&t Illinois | Chicago | IL | — | ◇ UNVERIFIED |
| IBIl Bell Telephone CO Dba At&t Illinois | Chicago | IL | — | ◇ UNVERIFIED |
| IIIllico INC | Centralia | IL | — | ◇ UNVERIFIED |
| IWIllinois-american Water CO | Alton | IL | — | ◇ UNVERIFIED |
| IWIllinois-american Water Company San Koty Facility | Peoria | IL | — | ◇ UNVERIFIED |
| IBIllinois Bulk Carriers | Chicago Heights | IL | — | ◇ UNVERIFIED |
| ITIllinois Tire Recycling INC | Cicero | IL | — | ◇ UNVERIFIED |
| IFImpact Fulfillment Services INC | Burlington | NC | — | ◇ UNVERIFIED |
| IIImperial Industrial Finishing Services | Kingston | IL | — | ◇ UNVERIFIED |
| IMImperial Metal Polishing | Imperial | MO | — | ◇ UNVERIFIED |
| IPImperial Plating CO | Springfield | IL | — | ◇ UNVERIFIED |
| IPImperial Plating INC | Fullerton | CA | — | ◇ UNVERIFIED |
| IPImpressions Polishing and Plating | Orange | CA | — | ◇ UNVERIFIED |
| IPIncon Process Systems LLC | Saint Charles | IL | — | ◇ UNVERIFIED |
| IPIndependent Plating CO. INC. | Worcester | MA | — | ◇ UNVERIFIED |
| IHIndiana Harbor Belt | Franklin Park | IL | — | ◇ UNVERIFIED |
| IRIndiana Recycling & Renewable Fuels LLC | Chicago Heights | IL | — | ◇ UNVERIFIED |
| IAIndustrial Anodizing INC. | Hyrum | UT | — | ◇ UNVERIFIED |
| ICIndustrial Chrome Plate | San Antonio | TX | — | ◇ UNVERIFIED |
| ICIndustrial Chrome Plating | Conyers | GA | — | ◇ UNVERIFIED |
| ICIndustrial Chrome Plating INC | Portland | OR | — | ◇ UNVERIFIED |
| ICIndustrial Chromium | Holyoke | MA | — | ◇ UNVERIFIED |
| ICIndustrial Container Services Ca North LLC | Roseville | CA | — | ◇ UNVERIFIED |
| ICIndustrial Container Services CO LLC | Brighton | CO | — | ◇ UNVERIFIED |
| IDIndustrial Diamonds Powders, INC | Verona | PA | — | ◇ UNVERIFIED |
| IHIndustrial Hard Chromium CO INC | Newark | NJ | — | ◇ UNVERIFIED |
| IMIndustrial Metal Finishing INC | Jamestown | NY | — | ◇ UNVERIFIED |
| IMIndustrial Metal Finishing, INC | Walnut Ridge | AR | — | ◇ UNVERIFIED |
| IMIndustrial Metal Finishing INC. #2 | Walnut Ridge | AR | — | ◇ UNVERIFIED |
| IPIndustrial Plating CO | Ames | IA | — | ◇ UNVERIFIED |
| IPIndustrial Plating CORP. | Lynchburg | VA | — | ◇ UNVERIFIED |
| IRIndustrial Research, INC. | Evansville | IN | — | ◇ UNVERIFIED |
| IDIndustrie De Nora S.p.a. - Chardon Manufacturing Facility | Chardon | OH | — | ◇ UNVERIFIED |
| IMIndy Metal Finishing | Brownsburg | IN | — | ◇ UNVERIFIED |
| IJIngenco Joliet Facility | Joliet | IL | — | ◇ UNVERIFIED |
| IRIngersoll Rand INC Air Center @ Raritan Center | Edison | NJ | — | ◇ UNVERIFIED |
| IWInnov Wire Technology INC | Colorado Spgs | CO | — | ◇ UNVERIFIED |
| ILIntegra Life Sciences Product Development Group | Plainsboro | NJ | — | ◇ UNVERIFIED |
| IHIntermet Havana Foundry | Havana | IL | — | ◇ UNVERIFIED |
| ICInternational Chrome Acid Spill | Dade City | FL | — | ◇ UNVERIFIED |
