1. International school of Zug & Luzern
2. Institut of Montana
3. International school of Central Switzerland
Please let us know if there are any more schools in the area. Warm regards
The Learn4Good website is quite a useful resource when it comes to getting reviews of schools in Switzerland. It will also be useful to make use of any contacts you have in Switzerland and get their views on the potential schools.
For a more general view of schooling in Switzerland consult the Expat Arrivals page on Education and Schools in Switzerland.
Good luck choosing a school.