As a leading web science and AI institute, L3S searches for innovative solutions to improve the quality of life in the digital society. Novel ideas, results from research, and inventions in digital technologies should not remain unexploited. We want to use opportunities from research for value creation and prosperity. Innovation requires stimulating environments that promote creativity, excellence and entrepreneurship. Startup@L3S aims to enhance the entrepreneurial culture within L3S by giving students and researchers the opportunity to explore entrepreneurial ideas and develop practical entrepreneurial skills.