Sainsburys is a joint stock company therefore will be owned by its shareholders, some of whom may be jewish. Most shareholders will be institutions such as pension funds, investment trusts and corporations such as universities etc, which cannot be part of a race or religion.
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There is no particular bank owned by "the Jews". There are certainly banks owned in whole or in part by Jews, just as there are banks owned in whole or in part by Christians, Muslims, Atheists, Hindus, Buddhists, etc.
Sainsbury's locations or Sainsbury's stores
Sainsbury's is a supermarket chain in England
Ben Sainsbury's birth name is Benjamin Douglas Sainsbury.
This is a publicly listed company owned by thousands of shareholders. A few of the Sainsbury's family still have significant shareholdings. The staff can buy limited amounts of shares as part of their company saving schemes. Directors also have significant shareholdings. On the margin are property speculator/s, subject of much press during recent years.
Robert Sainsbury died in 2000.
Sainsbury's was founded by John James Sainsbury.
Robert Sainsbury was born in 1906.
Tim Sainsbury was born in 1932.
Roger Sainsbury was born in 1936.
Sainsbury Wing was created in 1991.