Hi,
I don't know if you are still looking for the school, probably not, however a reply may be helpful for other readers. The school I know better in Belgrade is the .
It is a very interesting school because it is not a business run school, where profit is the main driver,which is usually the case with international schools. The school has been established as a not-for-profit association run by the parents. As a result, every penny earned is reinvested in the school, in improving infrastructures, teaching quality, etc.
Yes, indeed, I am "partial" because my kids are attending the school (which qualifies me as a "co-owner" of the school), but isn't this the best guarantee?
However check it out and let me know, the website is:
See you there!