| FSFormer Swisher Hygiene | Midwest City | — | ◇ UNVERIFIED |
| GGGeorgia Gulf Chem a | Oklahoma City | — | ◇ UNVERIFIED |
| HGHawthorne Gardening Company - Tulsa | Tulsa | — | ◇ UNVERIFIED |
| HCH-i-s Coatings | Oklahoma City | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io7) | Dacoma | — | ◇ UNVERIFIED |
| JMJm Manufacturing-tulsa Plant | Tulsa | — | ◇ UNVERIFIED |
| LCLinde Claremore Ok | Claremore | — | ◇ UNVERIFIED |
| LSLiquidpower Specialty Products INC. | Chickasha | — | ◇ UNVERIFIED |
| NCNalco CO Tulsa Plant 102 | Tulsa | — | ◇ UNVERIFIED |
| NRNeo Rare Metals (ok), LLC. | Quapaw | — | ◇ UNVERIFIED |
| OMOklahoma Materials Recycling | Atoka | — | ◇ UNVERIFIED |
| OFOzark Fluorine Spcl/ozark Fluorine Speci | Tulsa | — | ◇ UNVERIFIED |
| RDRed Devil Caulking and Sealant Mfg Pryor Ind Park | Pryor | — | ◇ UNVERIFIED |
| RERockwater Energy Solutions | El Reno | — | ◇ UNVERIFIED |
| SFSeaboard Foods LLC / High Plains Bioenergy Biodiesel Prod | Guymon | — | ◇ UNVERIFIED |
| SFSequoyah Fuels CORP. | Gore | — | ◇ UNVERIFIED |
| SFSequoyah Fuels Corporation | Gore | — | ◇ UNVERIFIED |
| SCSolvay Chemical Inc/chemical Mfg Faclty | Catoosa | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley INC / Tessenderlo Kerley | Wynnewood | — | ◇ UNVERIFIED |
| UAUmicore Autocat USA INC | Catoosa | — | ◇ UNVERIFIED |
| UPUmicore Precious Metals Chemistry (pmc) USA LLC | Catoosa | — | ◇ UNVERIFIED |
| APAir Products and Chemicals Inc.- Pryor Facility | Pryor | 20–99 | ◐ LIKELY ACTIVE |
| CCatoosa | Catoosa | 20–99 | ◐ LIKELY ACTIVE |
| CICF Industries | Verdigris | 100–499 | ◐ LIKELY ACTIVE |
| CACirculus Ardmore, PBLLC | Ardmore | 100–499 | ◐ LIKELY ACTIVE |
| DCDeepwater Chemicals, Inc. | Woodward | 20–99 | ◐ LIKELY ACTIVE |
| EMEurecat - McAlester | Mcalester | 20–99 | ◐ LIKELY ACTIVE |
| HAHorizon Ag-Products - OK Plant | Union City | 20–99 | ◐ LIKELY ACTIVE |
| ICInterplastic Corporation Pryor OK | Pryor | 100–499 | ◐ LIKELY ACTIVE |
| IIochem-OK | Vici | 20–99 | ◐ LIKELY ACTIVE |
| LPLawton Packaged Gas | Lawton | 20–99 | ◐ LIKELY ACTIVE |
| LCLinde Claremore | Claremore | 20–99 | ◐ LIKELY ACTIVE |
| MMM561 M561 -yukon,ok Xt-us | Yukon | 20–99 | ◐ LIKELY ACTIVE |
| MMMidwest Medical Isotopes, L.l.c. | Oklahoma City | — | ◐ LIKELY ACTIVE |
| NPNORIT Pryor | Pryor | 20–99 | ◐ LIKELY ACTIVE |
| STSHD - Tulsa | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| SLShilog, LTD | Mcalester | — | ◐ LIKELY ACTIVE |
| TITerra International LLC. | Woodward, OK | 100–499 | ◐ LIKELY ACTIVE |
| TTulsa | Tulsa | 20–99 | ◐ LIKELY ACTIVE |
| TCTurfCare Catoosa | Port of Catoosa | 1–19 | ◐ LIKELY ACTIVE |
| UPUmicore PMC USA, llc | Catoosa | 20–99 | ◐ LIKELY ACTIVE |
| UGUS Gypsum Southard | Southard | 100–499 | ◐ LIKELY ACTIVE |
| UBUltra Botanica LLC | Oklahoma City | 1–19 | ◇ UNVERIFIED |
| VNViaCore Nutrition LLC | Kingfisher | 20–99 | ◇ UNVERIFIED |
| WIWimase International Inc | Norman | 1–19 | ◇ UNVERIFIED |