They have pilots (and CC) based at the following airports...
Aberdeen, Cardiff, Chester/Hawarden, Durham Tees Valley, Humberside, Inverness, Isle of Man, Leeds/Bradford, Manchester, Newcastle, Norwich, Nottingham East Midlands, Southampton and Wick
Of which they have Saab 2000 crews at Aberdeen (ABZ-NCL-SOU) and Norwich (NWI-ABZ) and J32 crews I imagine are at Aberdeen and Wick
HTH
mmeteesside