I understand that GB airways was sold by Bland and not BA. They were a BA franchisee. As with Loganair, BA have decided against the franchise model (for now, at least).
Flyjet was actually purchased by Silverjet, and later SJ closed the charter (FJE) operation.
UKIA was never going to work - wrong management, wrong routes, business model fundamentally flawed.
Euromanx also failed.