The results of searching for "Montessori kindergarten": 8 English-speaking places
There are also organizations that speak other languages: Russian.
Gersthofer Straße 131 1180 Wien Austria
Arbeiterstrandbadstraße 130 1220 Wien Austria
Rathstraße 6 1190 Wien Austria
Josef-Gall-Gasse 2 1020 Wien Austria
Paulinengasse 16 1180 Wien Austria
Leonard-Bernstein-Straße 4-6 1220 Wien Austria
Heiligenstädter Straße 28 1190 Wien Austria
Am Heumarkt 23 1030 Wien Austria