Southwest Rural Electric Association INC | Tipton | — | ● ACTIVE |
| TETactical Electronics and Military Supply L.l.c. | Broken Arrow | — | ● ACTIVE |
The R.t. Clark Companies, INC. | Oklahoma City | — | ● ACTIVE |
| TETreasure Electronics INC | Tulsa | — | ● ACTIVE |
Turbines INC | Altus | — | ● ACTIVE |
U.s. Pioneer, L.l.c. | Tulsa | — | ● ACTIVE |
Xvector.us, INC | Tulsa | — | ● ACTIVE |
| ECEnovation Controls | Tulsa | 100–499 | ◐ LIKELY ACTIVE |
| SASpirit Aerosystems INC | Tulsa | — | ◐ LIKELY ACTIVE |
| CICameron International CORP | Duncan | — | ◐ LIKELY ACTIVE |
| CDControl Devices INC | Broken Arrow | 20–99 | ◐ LIKELY ACTIVE |
A-tech INC | Tulsa | — | ◐ LIKELY ACTIVE |
Avl Systems Design, L.l.c | Edmond | — | ◐ LIKELY ACTIVE |
| HSHermetic Switch Inc d/b/a HSI Sensing | Chickasha | 100–499 | ◐ LIKELY ACTIVE |
| SDStillwater Designs & Audio, Inc. | Stillwater | 100–499 | ◐ LIKELY ACTIVE |
| MTMaverick Technologies LLC | Oklahoma City | 1–19 | ◐ LIKELY ACTIVE |
| STSafety Training Sys INC / 7373 E 38th St Aerospace Training Equi | Tulsa | — | ◐ LIKELY ACTIVE |
| 7R7725 Reno No1 LLC / 7725 W Reno No 1 LLC | Oklahoma City | — | ◇ UNVERIFIED |
| FGFormer Graphic Electronics, INC. | Tulsa | — | ◇ UNVERIFIED |
| HCHitachi Computer Products INC / 1800 E Imhoff Norman | Norman | — | ◇ UNVERIFIED |
| ICImation CORP | Weatherford | — | ◇ UNVERIFIED |
| OMOrder Matic Electronics Corporation | Del City | — | ◇ UNVERIFIED |
| RMRantec Microwave & Electronics INC | Durant | — | ◇ UNVERIFIED |
| 8T818 Tulsa, OK (VEC) | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| ATAurora Tactical Group, LLC | Mounds | — | ▲ REPORTED CLOSED |
| DRDesign Ready Controls - OK | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
Doble Engineering Company (Tulsa, OK) | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| EEdmond | Edmond | 1–19 | ◐ LIKELY ACTIVE |
| GCGas Chromatography Systems MAXUM LLC - BVL | Bartlesville | 1–19 | ◐ LIKELY ACTIVE |
| HUHetronic USA | Oklahoma City | 20–99 | ◐ LIKELY ACTIVE |
| ILInPro/Seal, LLC d/b/a FW Murphy Production Controls | Tulsa | 1–19 | ◐ LIKELY ACTIVE |
| PPPower Products LLC | Edmond | — | ◐ LIKELY ACTIVE |
| SESubsite Electronics-OK | Perry | 100–499 | ◐ LIKELY ACTIVE |
| TFTeledyne Flir Defense, LLC | Stillwater | — | ◐ LIKELY ACTIVE |
| TOTMCO Operating | Wewoka | 20–99 | ◐ LIKELY ACTIVE |
| HRHardpoint Resource Group, LLC | Tulsa | — | ◐ LIKELY ACTIVE |
| RIResonance, Inc | Oklahoma City | 20–99 | ◇ UNVERIFIED |
| TSTOC Solutions, Inc | Edmond | 1–19 | ◇ UNVERIFIED |
| TITurbines, INC | Altus | 20–99 | ◇ UNVERIFIED |