| HBHill Bros Chemical CO | Amboy | CA | — | ◇ UNVERIFIED |
| HCHill Chemical, Inc. | Lakeland | FL | — | ◇ UNVERIFIED |
| HCHillside Chemical | Buffalo Lake | MN | — | ◇ UNVERIFIED |
| HHHln Holding LLC | Bensenville | IL | — | ◇ UNVERIFIED |
| HMHogan Mfg INC | Escalon | CA | — | ◇ UNVERIFIED |
| HHoh | Greendale | WI | — | ◇ UNVERIFIED |
| HWH-o-h Water Technology INC | Walled Lake | MI | — | ◇ UNVERIFIED |
| HWHoh Water Technology, INC. | Tea | SD | — | ◇ UNVERIFIED |
| HTHoimyung Texas | Beaumont | TX | — | ◇ UNVERIFIED |
| HSHoliday Sales INC | Rockford | MN | — | ◇ UNVERIFIED |
| HLHone LLC | Washington | UT | — | ◇ UNVERIFIED |
| HIHoneywell International | Santa Clara | CA | — | ◇ UNVERIFIED |
| HIHoneywell International Inc-claymont | Claymont | DE | — | ◇ UNVERIFIED |
| HMHowell Mouldings | New Century | KS | — | ◇ UNVERIFIED |
 Huberd Shoe Grease Company, L.l.c. | Snowflake | AZ | — | ◇ UNVERIFIED |
| HIHubot, Inc. | South Bend | IN | — | ◇ UNVERIFIED |
| HCHuntsman Corporation - the Woodlands Corporate Site | The Woodlands | TX | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO. | Laurens | SC | — | ◇ UNVERIFIED |
| HHydrochem | Detroit | MI | — | ◇ UNVERIFIED |
| HFHydro Foam Techonlogy, INC. | Perkins | OK | — | ◇ UNVERIFIED |
| HFHyfe Foods | San Francisco | CA | — | ◇ UNVERIFIED |
| IOIah Oregon LLC | Medford | OR | — | ◇ UNVERIFIED |
| ICIce Companies, INC Dba Lt Russ Manufacturing | Wilmington | NC | — | ◇ UNVERIFIED |
| IIcf | Richmond | CA | — | ◇ UNVERIFIED |
| IFIcon Foods | Portland | OR | — | ◇ UNVERIFIED |
| ICIconx Chemicals | Canonsburg | PA | — | ◇ UNVERIFIED |
| IUIcool USA Incorporated | Hartselle | AL | — | ◇ UNVERIFIED |
| IIdic-sdc | Belle Fourche | SD | — | ◇ UNVERIFIED |
| ISIdic Specialty Drilling Chemicals LLC | Belle Fourche | SD | — | ◇ UNVERIFIED |
| IBIgm Biosciences INC | Mountain View | CA | — | ◇ UNVERIFIED |
| IMIgp Methanol LLC - Gulf Coast Methanol Complex | Myrtle Grove | LA | — | ◇ UNVERIFIED |
| IBIllini Bio-energy LLC | Hartsburg | IL | — | ◇ UNVERIFIED |
| IBIllinois Biodiesel CO LLC | Chicago | IL | — | ◇ UNVERIFIED |
| IBIllinois Biofuel Group LLC | Princeton | IL | — | ◇ UNVERIFIED |
| ITImmunochemistry Technologies LLC | Minneapolis | MN | — | ◇ UNVERIFIED |
| ICImpact Chemical Technologies Midland Facility | Midland | TX | — | ◇ UNVERIFIED |
| IOIndependence Oilfield Chemicals Pleasanton Facilit | Pleasanton | TX | — | ◇ UNVERIFIED |
| IRIndian River Biodiesel | Fort Pierce | FL | — | ◇ UNVERIFIED |
| IAIndustrial Anodizing Co., INC. | Indianapolis | IN | — | ◇ UNVERIFIED |
| ICIndustrial Chemical Products W INC | City of Industry | CA | — | ◇ UNVERIFIED |
| ICIndustrial Chem Prod /west INC | Industry | CA | — | ◇ UNVERIFIED |
| ISIndustrial Specialty Chemicals INC | Harvey | IL | — | ◇ UNVERIFIED |
| IUInfineum USA LP | Linden | NJ | — | ◇ UNVERIFIED |
| IVIngevity Virginia Corporation - Wickliffe Carbon Plant | Wickliffe | KY | — | ◇ UNVERIFIED |
| ILInnevape LLC | Hudson | FL | — | ◇ UNVERIFIED |
| ICInnovative Concrete Technology LLC | Port Murray | NJ | — | ◇ UNVERIFIED |
| IWInnovative Water Care, LLC Dba Solenis | Charleston | TN | — | ◇ UNVERIFIED |
| IIInsta-Fire Inc. | Ogden | UT | — | ◇ UNVERIFIED |
| IAIntegrity Applied Science | Longmont | CO | — | ◇ UNVERIFIED |
| IBIntegrity Bio-chem | Cresson | TX | — | ◇ UNVERIFIED |
