They are the driving force behind the UK's financial services sector.
But just how much do they know about their pensions? And are they saving enough?
In this video, I took to the streets with my friendly camera man sidekick Elliot Vick to ask City workers on their lunch break exactly how much they know about their pension contributions and investments.
You might be a bit shocked by some of the results!
Thanks to everyone who gave up their time to take part. Part two will be coming shortly.
You can watch the video in full above, but do not forget to join in the debate on social media, where this video will also be doing the rounds.