Abstract. Weaving the Semantic Web the research community is working on publishing publicly available data sources as RDF data on the Web. To facilitate the adoption of Semantic Web technologies in corporate environments some issues on ontology engineering have to be addressed, e.g., support unexperienced employees to work collaboratively on ontologies. Although, existing methodologies structure well the process of ontology engineering, we miss an adequate tool support. We describe the Lekapidia case study and derive requirements for ontology engineering in a corporate environment. Furthermore, we present an extended ontology lifecycle integrating ontology engineering and ontology usage.