Here are a few more:-
Spain
Aviaco
Air Spain
Spantax
TAE
Yugoslavia
Inex Adria
Air Jugoslavia (Charter subsidiary of JAT)
Italy
SAM (Charter subsidiary of Alitalia)
Portugal
Air Columbus
UK
BIA
Ambassador
Peach Air
Airtours International
Airways International Cymru (Subject of another thread)
Donaldson International
Lloyd International
Paramount
USA (If Affinity Group Charters / Advance Booking Charters qualify)
Trans International
Transamerica
Capitol
Rich International
American Trans Air
Canada (as for USA)
Wardair
Nationair
Canada 3000
CP Air
That'll do for now. Others will have plenty more (rog747?).