There are many more - Paramount, Debonair, Buzz, numerous cargo carriers....what this demonstrates is not that UK aviators are inherently inept, but that the investment environment is well-disposed towards air transport. One reason for that is that the Regulatory regime, issueing Licences, is open to new entrants. Painful to fill in all the forms, raise financial evidence...but if a team does its homework, they can fly. The incumbent big boys have less scope to block newcomers than in, say, France.