Alumni from Britain’s top public schools are 94 times more likely to reach the highest positions of power, new research has found.

According to research from the London School of Economics (LSE), pupils who attended schools such as Eton, Charterhouse and Winchester College produce nearly 10% of all ‘Who’s Who’ entrants, despite only educating around 0.15% of students aged 13 to 18. Who’s Who is a list of “noteworthy and influential” people in the UK, which in the past has included MPs, judges and heads of public bodies.

The LSE study also found that of the 54 British prime ministers, 36 were education of one of nine elite public schools.

Dr Sam Friedman, one of the authors of the paper, said: “We are continually told that everyone has the same opportunities, irrespective of the school they attended. This research offers a corrective to that lofty ideal. It puts in some sort of context as to how far away from that equality of opportunity we really are.”

Commenting on the research, Conor Ryan, director of research at the Sutton Trust foundation, said the study highlighted the need to “ensure that access to the best schools and universities is not restricted to those from better off backgrounds.”