if you are not asking only for UK area i would like to share my informations too
IST Airport.
HAVAŞ
British Airways
Qatar Airways
Adria Airways
Ukrain int Airways
Pegasus airlines(only ist airport)
Air Moldova
Air Algerie
Air France
KLM
Aeroflot
Turkmenistan Airlines
Somon Air
Tarom
Middle East Airlines
Etihad
LOT
Saudi Arabian Airlines
Libyan Airlines
Iberia
Çelebi
Alitalia
Air serbia
Zagros Airlines
Onur Air
Lufthansa
Swiss
Korean
Austurian airlines
Fly Emirates
AtlasGlobal
china southern airlines
TGS
All Turkish Airlines fleet
those are as far as i know.