| MAMid American Steel and Wire CO - Mill | Madill | Primary Metal Manufacturing | 331110 | 100–499 | ◐ LIKELY ACTIVE |
| CMContract Manufacturer, LLC (cm Trailers) | Madill | Transportation Equipment Manufacturing | 336212 | — | ◐ LIKELY ACTIVE |
| OSOklahoma Steel & Wire Co., INC. | Madill | Fabricated Metal Product Manufacturing | 332618 | — | ◇ UNVERIFIED |
| EFEsro Food Group | Madill | Food Manufacturing | 311412 | — | ◐ LIKELY ACTIVE |
| MTMadill Trailer Mfg and Sales | Madill | Transportation Equipment Manufacturing | 336212 | — | ◐ LIKELY ACTIVE |
| OSOklahoma Steel & Wire CO. INC. | Madill | Fabricated Metal Product Manufacturing | 332618 | 100–499 | ◐ LIKELY ACTIVE |
| CTCm Truck Beds - Kingston Facility | Kingston | Transportation Equipment Manufacturing | 336212 | — | ◇ UNVERIFIED |
| MRMadill Rmc Plant | Madill | Nonmetallic Mineral Product Manufacturing | 327320 | — | ◇ UNVERIFIED |
| SHS & H Trailer Manufacturing CO (inc) | Madill | Transportation Equipment Manufacturing | 336212 | — | ◇ UNVERIFIED |
| BTBig Tex Madill (Dump) | Madill | Transportation Equipment Manufacturing | 336212 | 100–499 | ◐ LIKELY ACTIVE |
| CKCM Kingston | Kingston | Transportation Equipment Manufacturing | 336212 | 100–499 | ◐ LIKELY ACTIVE |
| CPCM Pettijohn | Madill | Transportation Equipment Manufacturing | 336212 | 20–99 | ◐ LIKELY ACTIVE |
| FSFayman & Sorbello Food Group LLC | Madill | Food Manufacturing | 311612 | — | ◐ LIKELY ACTIVE |
| WCWhiskey Creek Cattle, LLC | Madill | Food Manufacturing | 311611 | — | ◐ LIKELY ACTIVE |
| BTBigtex Trailer Manufacturing, INC. | Madill | Transportation Equipment Manufacturing | 336212 | — | ◇ UNVERIFIED |
| BTBigtex Trailers | Kingston | Transportation Equipment Manufacturing | 336212 | — | ◇ UNVERIFIED |
| EFEsro Food Group LLC / Dba Fayman & Sorbello Food Group LLC | Madill | Food Manufacturing | 311613 | — | ◇ UNVERIFIED |
| MTMadill Trailer Mfg and Sales | Madill | Transportation Equipment Manufacturing | 336212 | — | ◇ UNVERIFIED |