| 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 |
| BEBellator Enterprises LLC | Lawton | — | ◐ LIKELY ACTIVE |
| NRNuclear Rx INC | Tulsa | — | ◐ LIKELY ACTIVE |
| ALAllergy Laboratories, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| BSBachman Services, INC. | Oklahoma City | — | ◇ UNVERIFIED |
| BPBaker Petrolite Corporation | Barnsdall | — | ◇ UNVERIFIED |
| CACaulking and Sealant Mfg Pryor Ind Park | Pryor | — | ◇ UNVERIFIED |
| CMChemical Mfg Faclty | Catoosa | — | ◇ UNVERIFIED |
| CWCisper Welding, INC. | Wynnewood | — | ◇ UNVERIFIED |
| CTCold Trap LLC | Coleman | — | ◇ UNVERIFIED |
| DMDcp Midstream LP | Okarche | — | ◇ UNVERIFIED |
| DCDean Ceg LLC | Burns Flat | — | ◇ UNVERIFIED |
| EOEast Oak Rng Plant | Oklahoma City | — | ◇ UNVERIFIED |
| EAEnergy and Environmental Services, INC. | Edmond | — | ◇ UNVERIFIED |
| FFairmountsantrol | Roff | — | ◇ UNVERIFIED |
| FCFortune Cookie Soap Inc | Tulsa | — | ◇ UNVERIFIED |
| FCFortune Cookie Soap, Inc. | Bixby | — | ◇ UNVERIFIED |
| GDGaddy Discount Drug LLC | Muskogee | — | ◇ UNVERIFIED |
| HFHydro Foam Techonlogy, INC. | Perkins | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (i011) | Dover | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (i02) | Alva | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io10) | Kingfisher | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io4) | Burlington | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io5) | Alva | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io6) | Alva | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io8) | Arnett | — | ◇ UNVERIFIED |
| IRIofina Resources, INC. (io9) | Kingfisher | — | ◇ UNVERIFIED |
| KNKoch Nitorgen Location Spill Clean Up By Ge Water & Process Technologies | Enid | — | ◇ UNVERIFIED |
| KNKoch Nitrogen | Enid | — | ◇ UNVERIFIED |
| LELinde Engineering North America, INC. | Catoosa | — | ◇ UNVERIFIED |
| LGLinde Gas North America LLC | Enid | — | ◇ UNVERIFIED |
| LALogan and Company, INC. | Wynnewood | — | ◇ UNVERIFIED |
| MTMatheson Tri Gas INC / Matheson Lawton Ok Asu | Lawton | — | ◇ UNVERIFIED |
| NPNippon Paint Automotive Americas, INC. | Sparks | — | ◇ UNVERIFIED |
| OCOkc Crystal Laboratory INC / Okc Crystal Laboratory | Luther | — | ◇ UNVERIFIED |
| OSOklahoma Steel Castings | Tulsa | — | ◇ UNVERIFIED |
| PBPurMa Biologics, LLC | Oklahoma City | — | ◇ UNVERIFIED |
| QLQualGen LLC | Edmond | — | ◇ UNVERIFIED |
| RERockwater Energy Solutions | Duncan | — | ◇ UNVERIFIED |
| SRScaffolding Rental & Erection Services, LLC | Wynnewood | — | ◇ UNVERIFIED |
| TKTessenderlo Kerley INC Wynnewood Plant | Wynnewood | — | ◇ UNVERIFIED |
| UBUltra Botanica LLC | Oklahoma City | — | ◇ UNVERIFIED |
| VNViaCore Nutrition LLC | Kingfisher | — | ◇ UNVERIFIED |
| WSWB Spraying, LLC | Wilburton | — | ◇ UNVERIFIED |
| WBWheeler Bio INC | Oklahoma City | — | ◇ UNVERIFIED |
| WIWimase International Inc | Norman | — | ◇ UNVERIFIED |
| WEWoodside Energy USA INC / Woodside Energy H2ok | Ardmore | — | ◇ UNVERIFIED |
| WIWoodward Iodine Corporation | Sharon | — | ◇ UNVERIFIED |
