The task of this chapter is to investigate and assess Grossmann’s view of the ontological status of categories. It has two dimensions. Because Grossmann does not offer a full discussion of the ontology of categories, we first need to present an interpretation of his view. Our point of departure is Grossmann’s claim that a category is a fundamental property of being (which implies that he holds view 3 above). Our second task is to assess the adequacy of his view. We do this by raising some problems with Grossmann’s account, offering as an alternative view a version of 4 above, and defending it against what we construe as Grossmann’s possible counter-arguments. We argue that the best way to view categories themselves is as ontologically neutr...