Aircraft, engine, equipment or satellite manufacturers, companies, organisations or individuals carrying out business involving maintenance, testing, and distribution.
- Distribution
- Distributors of aircraft parts & accessories
- Engine dealers
- Engine manufacturers
- Engine parts components
- Flight deck equipment
- Instrument manufacturers
- Maintenance and repair stations
- Maintenance services programs and systems
- Maintenance/Repair/Overhaul (MRO)
- Overhaul (MRO)
- Repair
- Testing
- Other
