The winners of the Formnext Start-up Challenge 2019 presented some outstanding innovations that offer clues about the future development of the additive manufacturing sector. The winning start-ups, AdditiveLab (Belgium), Exponential Technologies Ltd. (Latvia), Glassomer (Germany), LMI - Laser Melting Innovations (Germany), and Spectroplast (Switzerland) impressed the international judging panel with a diverse range of industrial 3D printing innovations, including software and simulation solutions for more efficient additive manufacturing, a low-cost metal printer, and additive manufacturing solutions using glass and silicone.