London is the leading financial centre in Europe and one of the top three in the world. In London the term financial services includes a variety of different types of activities.
Hospitality, leisure and tourism are extremely important to London. The city welcomes some 25 million visitors a year, over half of which come from overseas.
Information Technology (IT) includes everything from website design to advanced telecomunications. London is a major centre of all things to do with IT, and many of its key businesses rely on it.
Take a glance across London's skyline in any direction and you can see the importance of the construction industry to the city, a city that is constantly expanding and renewing itself.