She is a professor at the Guildhall School of Music and Drama in the United Kingdom where she has taught the piano and the Alexander technique since 1975.

When they obtained false identities, she was separated from her sister, who went into hiding and found employment as a domestic servant.

The family in Warsaw paid for Ben-Or to have piano lessons along with their own daughter after hearing her play.

[6]: 01:28 In 1999, the Nelly Ben-Or Scholarship Trust was established, whose patron is Sir Colin Davis.

[5] Ben-Or was appointed Member of the Order of the British Empire (MBE) in the 2020 Birthday Honours for services to Holocaust education.