More than 1,300 votes have already been cast to determine the final rankings in C&IT's Power 50 2010.
With just hours left to vote, will Grass Roots Eventcom's managing director Nick Bender make the top spot again this year after beating the competition in the last Power 50?
Who will top the agency rankings, and which corporates will shine?
There is still chance to vote until the end of the day. Cast your vote here.
C&IT Power 50 will be revealed at a special event being held in March.