More and more data are produced every day. In order to use them in our everyday life, and to convert them into new innovative services, we have to transform them and imagine new applications. There are a lot of domains for which Big Data can be useful: from mobility to health, including energy management, environment, etc.… Supporting those innovations, experimenting and developing new services for tomorrow’s city and citizen, this is the goal of TUBÀ, the Urban Test Tube of Lyon Four actors are meeting at TUBÀ: - The large companies, whishing to leverage the many unused data they gather and improve citizen everyday lives thanks to new services; - The startup, which need to experience their technologies and innovative services, or to looking for resources that are essential to make their projects grow; - The competitiveness clusters and research laboratories, which aim is to support the growth of those innovations; - The citizen, ready to test those new services created for them. At TUBÀ, the general public is considered as an essential link in the creation process; they have a strong say in the experimentation of new services. In the center of those synergies we gather many data from a large range of activities; it may be from public entities (stored on the website smartdata.grandlyon.com) or private ones (by sharing it in the framework of specific projects). The 600 sqm. of TUBÀ are divided into two universes: the ground floor allows the general public to experiment the projects created by startup; the first floor is dedicated to innovative small companies et the development of their projects.