Plewiska
The results of searching for "School of design": 4 English-speaking places
There are also organizations that speak other languages: German.
Świętego Leonarda 51 60-654 Poznań Poland
Doctors and clinics 
Bilingual school Głogowska 18 60-702 Poznań Poland
School of design Study in English Edmunda Taczanowskiego 18 60-147 Poznań Poland
Education 
Services for kids