Methods and systems for generating performance profiles using electronic activities linked to record objects are disclosed. Exemplary implementations may: access a record objects of a system of record of a data source provider; identify, from the record objects, a subset of record objects associated with a node profile corresponding to an entity; identify, for each record object of the subset, electronic activities linked to the record object; determine, for each record object of the subset, a respective entity engagement profile for the entity based on the electronic activities linked to the record object and one or more object field-value pairs of the record object; generate a composite entity engagement profile of the entity based on each respective entity engagement profile corresponding to each record object of the subset of record objects; and store, in one or more data structures, an association between the entity and the entity performance profile.