Training programme for up-and-coming helicopter pilots
Rega does not provide basic training for helicopter pilots itself. However, it does support specially selected up-and-coming helicopter pilots through its own youth development programme. Candidates can only apply for selection if they are in possession of a letter of recommendation from a Swiss partner helicopter firm.
PDF: Youth Development Programme for Helicopter Pilots (in German)
Another possibility of taking to the air as a trainee pilot is through Sphair.