David and Richard Darling

419= £95m Computer games

A range of team-specific football video games is another winner from Codemasters Group, the Warwickshire games company that is stirring City talk of a £100m float. In 2002-03 the firm made £13.2m profit on £76.4m sales. We value it slightly below the mooted flotation price. The Darling family, led by brothers, David, 37, and Richard, 36, have a 96.7% stake.

406=
2003: £80m