GeoMapFish is an open source WebGIS platform developed in close collaboration with a large user group. It targets a variety of uses in public administrations and private groups, including data publication, geomarketing and facility management. OpenLayers and an OGC architecture allow to use different cartographic engines (MapServer, QGIS Server). Latest version supports Docker and can be installed on an OpenShift environment. Highly integrated platform, large features scope, fine grained security, reporting engine, top performances and excellent quality of service are characteristics of the solution. In this talk we’ll present the key usages, technical aspects of the platform and latest developments.