Molson Coors have sponsored the competition for 14 years will continue to do so until the end of this season.
But the Football League must find a new sponsor at a time when the competition is far from a priority for many Premier League clubs.
Triumph: Birmingham won the Carling Cup last season with victory over Arsenal
Football League Chairman, Greg Clarke said: 'This is the first time in 14 years that this sponsorship has been available in the marketplace and we look forward to offering potential sponsors the rare opportunity to put their brand on one of domestic football's major competitions.
'The growth in popularity of English football on the world stage, which has led to the League Cup being broadcast in more than 150 countries, means that this is also a sponsorship with global appeal.'
Clarke added: 'Molson Coors have been outstanding partners and have played an important part in helping us restore the competition's status and public appeal.? We are hugely grateful for the support they have given us.'
Priorities: The top Premier League clubs often play their fringe players in the cup
Chris McDonough, Marketing Director, Molson Coors (UK & Ireland) added: 'Carling's sponsorship of the League Cup has been extremely successful and helped to reinforce its status as the UK's best-selling lager and one of the leading supporters of football in this country.
'We continue to be very proud of our work with The Football League in transforming the perception of the competition amongst football fans and despite the contract being up for renewal in 2012 we are continuing to discuss the future of the competition with The Football League.
'But for the time being, we will focus on making this season's competition as memorable as previous seasons and Saturday's fourth round draw has thrown up some intriguing ties, led by Aldershot Town at home to Manchester United.'
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Source: Daily Mail
Source: Daily Mail