The aim of this contribution is to explore the compatibilit between teaching, research and commercial activities at the level of laboratories. In the first part of the chapter the authors present a literature review about the complementarity between teaching, research and commercial activities in universities. The second part describes University Louis Pasteur and the type of data collected. In the third part, they develop a typology of labs. The last part stresses the benefits of diversity within universities and the challenges it induces to university managers. An originality of this contribution is to explore simultaneously the compatibility between teaching, research and commercial activities. Another originality of this contribution stems from the richness of the database used for this research. In quantitative approaches, commercial activities are often reduced to patenting ones. For this research, the authors seize their diversity through the number of patents, the share of contractual research in the total funding of the laboratories and the number of publications with industrial co-authors.