The Olympics are big business, some of the world's biggest brands have spent millions of pounds to be part of London 2012.
Coca-Cola, McDonald's and Adidas are just some of the names behind the games.
Companies pay lots of money towards the games in exchange for getting their products in the Olympic spotlight.
But the rules on being a sponsor are really strict. A special law was brought in this year, which allows officials to fine companies who use the Olympic brand illegally.
Watch Ricky's report to find out more.