GeoNode.org - Open Source Geospatial Content Management System
QGIS - QGIS is a desktop geographic information system, or GIS.
Carto - The future of GIS? It’s Spatial Data Science. CARTO is the world’s leading Location Intelligence platform for Data Scientists, Developers and Analysts in Enterprise.
Mapbox - An open source mapping platform for custom designed maps. Our APIs and SDKs are the building blocks to integrate location into any mobile or web app.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.
Mapserver - MapServer is an Open Source platform for publishing spatial data and interactive mapping...