Aviation Sector
- Abu Dhabi Airports Company
- Abu Dhabi International Airport
- ACL
- ACSA
- Aer Arann
- Aeroporti di Paris
- airBaltic
- Aires
- Airport Property Partnership
- Arlanda
- ASIG
- Avinor
- BAA
- Bahrain Airport Company
- Belfast International Airport
- Bergen Airport
- Berlin Airports
- Birmingham Airport
- Blackpool Airport
- BMED
- Bristol Aiport
- British AIrways
- Brussels Airport Co
- CAA RCB Allocation
- Cardiff Airport
- Changi
- CityJet
- Copenhagen Airport
- Cork Airport
- Derry Airport
- East Midlands Airport
- EasyJet
- Etihad Airways
- Exeter Airport
- Flybe
- GESAC
- Heathrow Airport Ltd
- Hermes Airports
- HIAL
- IATA
- INECO
- Ireland West Airport Knock
- ITAKA
- Leeds Airport
- Liverpool Airport
- Loadair
- London City Airport
- London Gatwick Airport
- Luton Borough Council/Ernst & Young
- Manchester Airports Group
- Newcastle Airport
- Newquay Airport
- Oxford Airport
- Peel Airports
- Polish Airports
- RAF Lyneham
- Riga Airport
- SASI
- SEA
- Shannon Airport
- Sheffield City Airport
- Southend Airport
- Tees Valley Airport
- Virgin Holidays
- VTAE