| TMTaylorsville, MS | Taylorsville | 20–99 | ◐ LIKELY ACTIVE |
| TOThe Olive Seed Soapery LLC | Southaven | — | ▲ REPORTED CLOSED |
| TCTronox Chemical Hamilton | Hamilton | 100–499 | ◐ LIKELY ACTIVE |
| WDWe'll Do It Painting LLC | Roxie | — | ◐ LIKELY ACTIVE |
| WCWestlake Chemical Corporation Aberdeen Facility | Aberdeen | 100–499 | ◐ LIKELY ACTIVE |
| WCWestlake Compounds Madison, LLC | Madison | 20–99 | ◐ LIKELY ACTIVE |
| ZCZeon Chemicals LP -MS Plant | Hattiesburg | 20–99 | ◐ LIKELY ACTIVE |
| APAir Products and Chemicals Inc, Brookhaven Co2 Facilitys INC | Brookhaven | — | ◇ UNVERIFIED |
| ALA L and S LLC | De Kalb | — | ◇ UNVERIFIED |
| AGAllied Group, INC. | Water Valley | — | ◇ UNVERIFIED |
| APAndromeda Pharma and Cosmetic Company, LLC | Meridian | — | ◇ UNVERIFIED |
| AIArrow Industries Como Charcoal Division | Como | — | ◇ UNVERIFIED |
| BLB. L. Mitchell, INC. | Leland | — | ◇ UNVERIFIED |
| CBC B L Architectural Fiberglass | Hernando | — | ◇ UNVERIFIED |
| CCChannel Chemical Corporation | Gulfport | — | ◇ UNVERIFIED |
| CVChemours Vcp Pascagoula | Pascagoula | — | ◇ UNVERIFIED |
| CLChemtrade Logistics, INC. | Picayune | — | ◇ UNVERIFIED |
| DADak Americas Mississippi INC | Bay Saint Louis | — | ◇ UNVERIFIED |
| DNDouble N Designs and Powdercoating LLC | Natchez | — | ◇ UNVERIFIED |
| DCDrexel Chemical CO | Tunica | — | ◇ UNVERIFIED |
| ECExell Company | Jackson | — | ◇ UNVERIFIED |
| FPFortus Pharma LLC | Southaven | — | ◇ UNVERIFIED |
| GGGeorgia Gulf Chemicals Prairie Plant | Aberdeen | — | ◇ UNVERIFIED |
| GGGeorgia Gulf Chemicals & Vinyls Llc, Gallman | Hazelhurst | — | ◇ UNVERIFIED |
| GCGeorgia-pacifc Chemicals LLC | Taylorsville | — | ◇ UNVERIFIED |
| GEGood Earth Horticulture, INC. | Elliott | — | ◇ UNVERIFIED |
| HPHuey P Stockstill Llc, Picayune Ready Mix and Asphalt Plant | Picayune | — | ◇ UNVERIFIED |
| JTJarrell Transport INC. | Koscuisko | — | ◇ UNVERIFIED |
| LCLasonite Chemical | Jackson | — | ◇ UNVERIFIED |
| LBLinde Brandon, Ms | Brandon | — | ◇ UNVERIFIED |
| LLLinde Llc, Andrew Chapel Road Facility | Brandon | — | ◇ UNVERIFIED |
| MCMarietta Corporation | Olive Branch | — | ◇ UNVERIFIED |
| MEMississippi Ethanol LLC | Winona | — | ◇ UNVERIFIED |
| MIMorton International Inc, Dba Rohm and Haas Electronic Materials LLC | Moss Point | — | ◇ UNVERIFIED |
| MIMorton Intl INC (mpm) | Moss Point | — | ◇ UNVERIFIED |
| MBMusee Bath | Madison | — | ◇ UNVERIFIED |
| OIOdom Industries, Inc. | Waynesboro | — | ◇ UNVERIFIED |
| OLOkan, LLC | Jackson | — | ◇ UNVERIFIED |
 On Demand Pharmaceuticals, INC. | Tupelo | — | ◇ UNVERIFIED |
| PTPackswell Technologies, LLC | Ripley | — | ◇ UNVERIFIED |
| PPPharmacy Plus Infusion Services of Hattiesburg, INC. | Hattiesburg | — | ◇ UNVERIFIED |
| PRPhoenix Rice Oil Corporation | Vicksburg | — | ◇ UNVERIFIED |
| PIPolychemie INC | Pearlington | — | ◇ UNVERIFIED |
| SCSouth Central Polymers, INC. | Booneville | — | ◇ UNVERIFIED |
| SFStructured Fibres, Incorporated | Saltillo | — | ◇ UNVERIFIED |
| SCSun-pine Corporation, LTD. | Canton | — | ◇ UNVERIFIED |
| SPSuperior Polymers, LLC | Hattiesburg | — | ◇ UNVERIFIED |
| TITaylor Industries LLC | Madison | — | ◇ UNVERIFIED |
 The New York Blower Company | Philadelphia | — | ◇ UNVERIFIED |
| TRThree Rivers Biofuels LLC | Burnsville | — | ◇ UNVERIFIED |
