In a context of decision-aid to support the identification of collaborative networks, this paper focuses on extracting essential facets of firm competencies. Due to the complexity of the notion of competence, this contribution is based on a semantic representation of information using semantic ontology, bonds and a linguistic treatment based on the utilization of syntactic patterns. To identify enterprise competencies, the UNICOMP system uses company web sites as information source, as well as a general ontology of competencies as semantic resource.