QGIS - QGIS is a desktop geographic information system, or GIS.
OpenTSDB - OpenTSDB is a distributed, scalable Time Series Database (TSDB) written on top of HBase.
Esri ArcGIS - ArcGIS provides contextual tools for mapping and spatial reasoning so you can explore data & share location-based insights. ArcGIS is the heart of the Esri Geospatial Cloud. Try ArcGIS for free with 21-day trial.
Tile38 - Geospatial database and real-time geofence server for managing fleets, mobile apps, and IoT devices.
Geopointe - Geopointe enables Salesforce users to gain spatial insights via maps and apply geography to business processes.
BuntDB - A fast, embeddable, in-memory key/value database for Go with custom indexing and geospatial support