| HEHalliburton Energy Services INC - Beeville | Beeville | TX | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services, INC. - Halwest Facili | Williston | ND | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services, INC. - Norman Doucet | Golden Meadow | LA | — | ◇ UNVERIFIED |
| HEHalliburton Energy Services - Williston | Williston | ND | — | ◇ UNVERIFIED |
| HEHalliburton Energy Svcs | Westlake | LA | — | ◇ UNVERIFIED |
| HFHalliburton Fort Lupton Field Camp | Fort Lupton | CO | — | ◇ UNVERIFIED |
| HMHalliburton Magnet Cove Grinding Plant | Malvern | AR | — | ◇ UNVERIFIED |
| HMHalliburton Monahans Baroid | Monahans | TX | — | ◇ UNVERIFIED |
| HNHalliburton North Slope (prudhoe) Field Camp | Prudhoe Bay | AK | — | ◇ UNVERIFIED |
| HPHalliburton Pocasset Baroid | Pocasset | OK | — | ◇ UNVERIFIED |
| HSHalliburton Sterling Facility | Sterling | AK | — | ◇ UNVERIFIED |
| HWHalliburton Woodville Facility | Woodville | TX | — | ◇ UNVERIFIED |
| HCHarcros Chemicals INC - Memphis Facility | Memphis | TN | — | ◇ UNVERIFIED |
| HEHaviland Enterprises INC | Grand Rapids | MI | — | ◇ UNVERIFIED |
| HPHaviland Products Company - Kalamazoo | Kalamazoo | MI | — | ◇ UNVERIFIED |
| HIHawkins Industrial Group - Rosemount | Rosemount | MN | — | ◇ UNVERIFIED |
| HFHb Fuller CO | Morris | IL | — | ◇ UNVERIFIED |
| HCHeatbath CORP | Indian Orchard | MA | — | ◇ UNVERIFIED |
| HCHenkel Corporation | Olean | NY | — | ◇ UNVERIFIED |
| HIHercules INC an Aqualon Div | Kenedy | TX | — | ◇ UNVERIFIED |
| HCHexcel Corporation: Salt Lake Operations | West Valley City | UT | — | ◇ UNVERIFIED |
| HIHexion INC. | Lakeland | FL | — | ◇ UNVERIFIED |
| HIHexion INC. - Missoula | Missoula | MT | — | ◇ UNVERIFIED |
Hexpol Compounding PC INC Dba Hexpol Whitewater | Whitewater | WI | — | ◇ UNVERIFIED |
| HAHighline Aftermarket | Dallas | TX | — | ◇ UNVERIFIED |
| HCH-o-h Chemicals INC | Palatine | IL | — | ◇ UNVERIFIED |
| HIHoneywell International Incorporated | Sparta | TN | — | ◇ UNVERIFIED |
| HSHoneywell Specialty Materials | Columbia | MO | — | ◇ UNVERIFIED |
| HCHoughton Chemical Distribution and Manufacturing | Boston | MA | — | ◇ UNVERIFIED |
| HTHowmet Ti-cast | Whitehall | MI | — | ◇ UNVERIFIED |
Huntsman Advanced Materials Americas INC | Mc Intosh | AL | — | ◇ UNVERIFIED |
Huntsman Advanced Materials Americas, LLC. | East Lansing | MI | — | ◇ UNVERIFIED |
| HAHuntsman Advance Materials, LLC | Harrison City | PA | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Waterloo | IA | — | ◇ UNVERIFIED |
| HNHyperlast North America | Chattanooga | TN | — | ◇ UNVERIFIED |
| ICIdi Caribe INC | Salinas | PR | — | ◇ UNVERIFIED |
| ITIllinois Tool Works, INC. | Clearwater | FL | — | ◇ UNVERIFIED |
| ICInchem Corporation | Rock Hill | SC | — | ◇ UNVERIFIED |
| IOIndependence Oilfield Chemicals | Midland | TX | — | ◇ UNVERIFIED |
| IOIndependence Oilfield Chemicals LLC | Pleasanton | TX | — | ◇ UNVERIFIED |
| IDIndustrial Dielectrics | Noblesville | IN | — | ◇ UNVERIFIED |
| IAIneos Abs (usa) LLC - Addyston Plant | Addyston | OH | — | ◇ UNVERIFIED |
| ICIneos Composites Us/phila | Philadelphia | PA | — | ◇ UNVERIFIED |
| ISIneos Styrolution America LLC | Channahon | IL | — | ◇ UNVERIFIED |
| IVIngevity Virginia Corporation | Covington | VA | — | ◇ UNVERIFIED |
| IWInland Waters Pollution Control Detroit Facility | Detroit | MI | — | ◇ UNVERIFIED |
| IWInnovative Water Care, LLC | Alpharetta | GA | — | ◇ UNVERIFIED |
| ILIntellipak LTD | Newbury | OH | — | ◇ UNVERIFIED |
| ICInterplastic CORP - Minneapolis Plant | Minneapolis | MN | — | ◇ UNVERIFIED |
| ICInterplastic Corporation | Fort Wright | KY | — | ◇ UNVERIFIED |