| Physical Location/Base of Operation | Physical Location/Base of Operation | Scope of work | | Lic, Reg, Approval No |
| Aero Services (Pty) Ltd | Boksburg | Design of aircraft interiors and composite secondary structures on large and small aircraft and rotorcraft. | ADO | DMP21 |
| Aerostruct Consulting CC | W/boom Airport | Aerial survey equipment, medical installations. Powerplant, fuel tank, landing gear and control system changes | ADO | D672 |
| Aerosud (Pty) Ltd | Centurion | Power line cleaning Systems | ADO | D669 |
| Challenge Air cc | W/boom Airport | Design changes and repairs on large and small aircraft. | ADO | D702 |
| Jonker Sailplanes CC | Potchefstroom | Design of and changes to sailplanes. Continued airworthiness of Jonker Sailplanes products | ADO | D667 |
| Airbus DS Optronics (Pty) Ltd | Centurion | Design of Stabilised Observations Systems and related aeronautical parts and appliances including TV cameras etc. | ADO | D675 |
| Omnipless (Pty) Ltd | Tokai, CT | Design of Airborne Satellite Communication Antenna Systems | ADO | D01 |
| Interjet | Lanseria Airport | Design of avionic installations, electrical and instrument installations on small aircraft and rotorcraft. | ADO | D679 |
| Aerodesigns Africa (Pty) Ltd | Waterkloof Ridge | Generation of data for Supplemental Type Certificates related to structures, power plant, electrical and avionics installations etc. | ADO | D680 |
| AME Aviation () Ltd | Wonderboom Airport | Design of Electrical installations on small aircraft and rotorcraft. Design changes and repair designs of electrical and avionics equipment installations on small aircraft and rotorcraft. | ADO | D683 |
| Epsilon Engineering Services (Pty) Ltd | Lyttelton Manor, Centurion | Classification of design changes and repair designs to small aeroplanes and rotorcraft etc. | ADO | D684 |
| Clifton Electronics cc | Rand Airport | Classification of Modifications and Repair designs. Designing minor changes to light aircraft and rotorcraft in accordance with applicable certification basis. | ADO | D686 |
| Jet Aviation | Basel, Switzerland | Minor design changes and repair designs to large aircraft. | ADO | D687 |
| Century NAVCOM | Lanseria Airport | Changes and repairs to small aeroplanes, sailplanes and powered sailplanes, VLA and VLR | ADO | D688 |
| SAAT | O.R. Tambo Int. Airport | Classification of changes to large aircraft, minor changes to large aircraft. | ADO | D682 |