Try
www.buchair.net they produce very comprehensive listings of bizjets, airlines, heli operators etc. It's really aimed at spotters but includes all sorts of info about the operating companies (CEO, number of staff, websites,contact details etc). The books aren't cheap but are invaluable job hunting tools - they even tell you the age of each aircraft operated, delivery date to the company, previous identities and whether they are owned or leased. Read between the lines and you will learn a lot about the operator. Interestingly, the publishers have just been bought by Flight International
