Supplemental functionalities may be provided for an executable program via an ontology instance. In some embodiments, a computer program (e.g., an executable program or other computer program) associated with an ontology may be caused to be run. The ontology may include information indicating attributes for a set of applications. An instance of the ontology may be obtained, which may correspond to an application of the set of applications. Based on the ontology instance, supplemental information may be generated for the computer program. The supplemental information may be related to one or more functionalities of the application to be added to the executable program. The supplemental information may be provided as input to the computer program. The supplemental information, at least in part, may cause the one or more functionalities of the application to be made available via the executable program.