This information is not held centrally. However, I have been informed that no staff in executive positions at the Olympic Lottery Distributor and none of the Olympic Delivery Authority's Executive Management Board have a career history that involves the banking sector.
The London Organising Committee for the Olympic Games and Paralympic Games is a privately funded commercial organisation. Information about their executive staff members can be found on their website:
http://www.london2012.com/about/the-people-delivering-the-games/the-london-2012-organising-committee/locog-board.php
A copy of the relevant website pages will be placed in the House Libraries.