Additionally, maps can be integrated in web portals to present geographic information, such as the sites where social services are provided, in a more user-friendly way. Furthermore, GIS may be used to better analyse data following a territorial structure. However, incorporating this kind of system in an organization presents different integration challenges. As a result, GIS are still mainly used as stand-alone tools which are only partially integrated into larger systems. Nevertheless, this situation is quickly changing, thanks to several key factors, including the consolidation of Geographic Web Services and Service-Oriented Architectures (SOA). This paper describes the main functionalities provided by GIS, analyses how a social security organization can leverage them, and identifies various integration challenges. Additionally, it presents the results of implementing some integration scenarios in the context of an SOA, including Geo-enabled web applications and the use of standards-based Geographical Web Services to share location-based information with other organizations.