RUC (PSNI) fly BN2 T Islanders.
AER Arran Fly ATR's based in DUB though.
FlyBe operate Dashes all marks -200,-300,-Q400.
Manx/British Regional? BACX fly ATP's based in MAN though.
Emerald fly 748's but apparently will be getting ATP's shortly.
BAC fly SD-360's & F27 Night Fighters.
Give em all a try, you never know.