More than 5,500 schools and colleges currently participate in the charity's programmes, but it is keen to raise its profile and get more young people on board.
The agency has been briefed to launch an awareness raising campaign kicking off in May. The focus will be on showcasing some of the most successful Young Enterprise alumni and demonstrating the positive impact that Young Enterprise has had in enabling them to succeed in the workplace.
Public sector specialist Geronimo will also handle a second campaign around the charity's QuickStart Music programme, which places music professionals in schools to teach children how to set up their own businesses in the music industry.
The agency will target the education press to encourage schools to buy in the programme, and will target the music industry to recruit professional volunteers.
Geronimo will be enlisting the help of an up-and-coming young band to generate excitement and promote the benefits of the programme.
Geronimo director Anastasia Scott will lead the work. She said: 'At a time when enterprise education is very much at the forefront of the Government's agenda, we will be working with the team at Young Enterprise to show how innovative its programmes are.'
The charity brought in its first external agency help in 2006, when it used Kinross + Render as part of a drive to reach a million schoolchildren a year.