A group of companies in Japan are the main sponsors.

"But we want to protect the investment of our main sponsors."

Bloomberg News has agreed to be the show's main sponsor.

There were no main sponsors for the event in 2009 and 2010.

This resulted in a change of name every time the main sponsor was changed.

In many cases, the main sponsor determines the competition's name.

As the main sponsor of the new nation, America will have to assume some responsibility for its security.

"The responsibility for this lies with America, the main sponsor of the peace process."

It is named after its main sponsor, the telecommunications company O2.

Some critics claimed the main sponsor was having too much control over the event.