The Protege 4 editor was developed by the CO-ODE Project at the University of Manchester in collaboration with Stanford University. Protege has been used by the myGrid consortium to develop OWL ontologies such as the myGrid Ontology.

myGrid uses ontologies for semantic service discovery (the myGrid ontology) and for managing process provenance (the workflow run ontology) Our ontologies have in general been authored in OWL using Protégé 4 The myGrid ontology is used within our service discovery tool, FETA. FETA allows services to be identified by their functions or properties, for example, inputs/outputs, underlying data [...]