Building an ontology resource network using grid computing is one method to exploit the sparsely distributed ontology resources. Grid computing technology provides merit on security issues and ease of controlling the resources. However, problems on resource discovery and the effectiveness in managing and provisioning the various scattered grid resources exist. We addressed these problems with the construction of a semantic grid service which automatically provides the optimal required grid resources, and the adaption of the notion of Virtual Organization (VO). The semantic grid service consists of various VOs, and the sub-ontology extraction and tailoring application was used as a proof-of-concept. The processing of the application was analyzed in order to verify the workability of the system.