It expanded over the years to become one of Britain's foremost stage schools.
Many stage and film personalities of the 20th century received their professional education and arranged their first employment through the school.
Run by Aida, and later by her daughter Anita Foster, it catered for three different groups of students: those that undertook dance training only, younger pupils that had full education plus both dancing and drama training, and older students taking drama training only.
The Aida Foster School supplied many of the pantomime "babes" (children's choruses and parts) for the West End Christmas shows of the 1950s.
[3] Following the death of her husband she closed the school in 1970 to concentrate on the agency with her daughter Anita.