As far as I know, all charter flights fall under GA be they private lease, business flights, cargo or just a group booking their own plane as they are no regularly scheduled flights but on-demand.
I visited some aerodrome websites and most offer charter flight services in addition to flight training, leisure and sports flights, gliders and whatnot as well as refueling services - mostly via a fuel station for small aircraft. I made a feature proposal about this as well, but all those features combined with what you write here (hangars, clubs, infra, fuel stations, charter flights, helos and gliders and many more) could expand ACEO in a way to have either a huge CA airport or managing and expand a GA aerodrom if that is your cup of tea - or a combination of both.