Think Gamma, think Bond
They go back a long way and were essentially Bond's fixed wing department - amongst other things, flying fixed wing air ambulance(King Airs) around the islands of Scotland, with a little Lear Jet (or was it Citation?) type action down London way.
The "change" in contract will still see Bond flying their 135s, and it woulndn't take a genius to figure out who will be providing the Shetland 332L2, mentioned in the new contract.