Rupert Murdoch, 80, takes a very active role at the top of the media empire he has built. The octogenarian is still regarded as one of the most influential men in politics.
At 74-years old, Winterflood Securities founder – now its life president – Brian Winterflood is still an ever-present figure in the City.
Simon Murray, the 71-year-old chairman of Glencore, has been busy since joining the firm before its float. He has also visited the South Pole and been chased by a leopard.