Startups are a gateway for promoting future innovation, which is a key aspect of any sustainable economy. This book gives a closer look on startup ecosystems, their unique elements and possibilities of financing for young (and older) entrepreneurs. The data analysis based on an extensive field work foreshadowed the main problems this ecosystem is currently facing in Slovakia. This book is useful for anyone who would like to gain insights into the startup world, regardless the region, as most of the challenges we face are the same all over the world.