Speaking at the Royal Geographical Society Conference in London, Mr Gummer welcomed the new voice for Londoners - the London Advisory Panel.
Mr Gummer said: 'The government's approach to build and encourage partnerships across London to tackle specific issues has resulted in the ultimate partnership - the setting up of the London Advisory Panel where ministers meet London organisations to discuss strategic issues of importance to us all.
'Now London has the opportunity to have greater influence in government. The panel will advise London ministers on a range of issues - issues that are important to Londoners. Furthermore, the panel discussions will not be wrapped in secrecy. I believe that it is imperative that Londoners are kept informed about the issues raised.
'London is a success story. It has again been singled out by leading European businessmen as the best city in Europe in which to do business. We must continue to work in partnership to ensure that London remains the capital city of the world and that all Londoners share in that success.'