ITCHING to get started on their new businesses, aspiring young entrepreneurs in Generation Innovation's GI Challenge will this week finalise their crowdfunding targets and start raising the capital they need to turn their business idea into a reality.

Four groups of people between the age of 15 and 25 have been shortlisted from an original cohort of eight teams that started the challenge in March.

Their business ideas have grown from concepts to structured, realistic and collaborative projects, said Generation Innovation founder Ted O'Brien.

"The program has exceeded my expectations in terms of both the enthusiasm and level of commitment from the young people, but also the mentors," he said.

He said the youngsters had worked closely with experienced mentors for every step.

"Some of the participants had the competence of people twice or three times their age," he said.

Visit generationinnovation.com.au

The ideas

Koi Krew

A service enabling non-judgemental young people to hang out with other similar young people in cafes/venues

Holographic Estate

An interactive 3D modelling tool where home buyers and renters visualise designs using personal furniture or their own concepts

3Design

An online retail store where people's concepts for personalised products can be 3D designed, printed and purchased

Swift Super Smoothies

A juice bar that offers a swift healthy fruit smoothie experience on the go