If you would like to invest in a startup, but don't have a clue where to start, take a look at Crowdcube.
Crowdcube is a crowdfunding platform that allows you to invest and buy shares of startups and emerging businesses. There is no need to invest large sums: you can start by purchasing shares for a few euros. And if that's okay with you, who knows, in the future you might get some good return. Within the website you will find some of the most interesting startups in the entire European landscape.