This document discusses the use of open source GIS stacks by organizations in Nigeria and Quebec. It describes how eHealth Africa uses FOSS4G tools like QGIS, MapServer, PostgreSQL and OpenLayers to manage and share public health data in Nigeria. Similarly, Quebec Public Safety uses FOSS4G including MapServer, OpenLayers and PostGIS to provide open, flexible and cost-effective GIS services for disaster management. Both organizations chose FOSS4G for benefits like standard compliance, community support, lower costs and greater flexibility compared to proprietary software. The document also outlines opportunities for partnership between the two organizations.