| HJH J Baker Bro INC | Wilmington | CA | — | ◇ UNVERIFIED |
| HJH J Baker & Bros INC | Stockton | CA | — | ◇ UNVERIFIED |
| HCHolland Company | Adams | MA | — | ◇ UNVERIFIED |
| HIHoneywell International (burdick & Jackson) | Muskegon | MI | — | ◇ UNVERIFIED |
| HCHp Computing and Printing, INC. | Corvallis | OR | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Milwaukee | WI | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | La Crosse | WI | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Waterloo | IA | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO | Oshkosh | WI | — | ◇ UNVERIFIED |
| HCHydrite Chemical CO. | Terre Haute | IN | — | ◇ UNVERIFIED |
| IAIbc Advanced Technologies, INC. | American Fork | UT | — | ◇ UNVERIFIED |
| IPIcl Performance Products LP | Lawrence | KS | — | ◇ UNVERIFIED |
| IRIgm Resins Charlotte, INC | Charlotte | NC | — | ◇ UNVERIFIED |
| INImpact Nano 153 Quabbin Boulevard | Orange | MA | — | ◇ UNVERIFIED |
 Independent Ink, INC. | Gardena | CA | — | ◇ UNVERIFIED |
| ICIndustrial Chemicals CORP | Arvada | CO | — | ◇ UNVERIFIED |
| IOIneos Oxide - a Division of Ineos Americas LLC | Plaquemine | LA | — | ◇ UNVERIFIED |
| IUIneos Usa, LLC - Laporte Pao Facility | La Porte | TX | — | ◇ UNVERIFIED |
| IUInfineum USA L.p. - Bayway Chemical Plant | Linden | NJ | — | ◇ UNVERIFIED |
| IIngredion | Mapleton | IL | — | ◇ UNVERIFIED |
| IIInkjet INC | Willis | TX | — | ◇ UNVERIFIED |
| ICInnovative Chemical Technologies INC. | Cartersville | GA | — | ◇ UNVERIFIED |
| ICInnovative Chemical Technologies, INC. | Cartersville | GA | — | ◇ UNVERIFIED |
| IIInolex, INC. | Charlotte | NC | — | ◇ UNVERIFIED |
| IDIntegrated Dna Technologies | Morrisville | NC | — | ◇ UNVERIFIED |
| IFInternational Flavors & Fragrances INC | Hazlet | NJ | — | ◇ UNVERIFIED |
| ICInterstate Chemical CO | Pueblo West | CO | — | ◇ UNVERIFIED |
| ICInterstate Chemical CO | Channahon | IL | — | ◇ UNVERIFIED |
| IWInvista Wilmington | Wilmington | NC | — | ◇ UNVERIFIED |
| IIInx International Ink CO | Appleton | WI | — | ◇ UNVERIFIED |
| ICIochem Corporation | Vici | OK | — | ◇ UNVERIFIED |
| IIIoditech INC | Kansas City | MO | — | ◇ UNVERIFIED |
| IRIowa Renewable Energy LLC | Washington | IA | — | ◇ UNVERIFIED |
| ICIps Corporation - Durham Plant | Durham | NC | — | ◇ UNVERIFIED |
| IIIrisys INC | San Diego | CA | — | ◇ UNVERIFIED |
| IMIrix Manufacturing Incorporated | Greenville | SC | — | ◇ UNVERIFIED |
| ILIsola Laminate Systems Pendleton-closed | Pendleton | SC | — | ◇ UNVERIFIED |
| ICIsp Chemicals INC | Huntsville | AL | — | ◇ UNVERIFIED |
| ICIsp Chemicals LLC | Columbus | OH | — | ◇ UNVERIFIED |
| ISItalmatch Sc LLC | Bedford Park | IL | — | ◇ UNVERIFIED |
| JPJanssen Pharmaceuticals INC. | Athens | GA | — | ◇ UNVERIFIED |
| JJJci Jones Chemicals Incorporated | Charlotte | NC | — | ◇ UNVERIFIED |
| JSJr Simplot | Helm | CA | — | ◇ UNVERIFIED |
| JSJupiter Sulphur, LLC. - Billings | Billings | MT | — | ◇ UNVERIFIED |
| KCKemira Chemicals INC | Aberdeen | MS | — | ◇ UNVERIFIED |
| KCKemira Chemicals INC. | Augusta | GA | — | ◇ UNVERIFIED |
| KCKemira Chemicals INC - Columbus Plant | Columbus | GA | — | ◇ UNVERIFIED |
| KCKemira Chemicals INC Washougal Plant | Washougal | WA | — | ◇ UNVERIFIED |
| KWKemira Water Solutions | Spokane | WA | — | ◇ UNVERIFIED |
| KWKemira Water Solutions, INC. | Mobile | AL | — | ◇ UNVERIFIED |
