AELO Swiss Academy, with its Swiss ATO approval, lengthy operational background because 1985

https://fernandofwbc043.quantlynix.com/posts/aelo-swiss-academy-from-110-120-candidates-per-year-to-graduates

AELO Swiss Academy, with its Swiss ATO approval, long operational history since 1985, and defined 18-month program tracks, supports structured airline-pilot development.