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.
PlaceIQ - PlaceIQ provides location intelligence services that enable advertisers to reach mobile brand audiences for marketing activities.
Maptitude - Maptitude is a mapping software that is fitted with GIS features that avail maps and other forms of data regarding the surrounding geographical areas. Read more about Maptitude.
Euclid Analytics - Euclid Analytics provides answers and insights to brick and mortar retailers in the same way that web analytics services do for e-commerce.
QGIS - QGIS is a desktop geographic information system, or GIS.
POIData.xyz - Point of Interest (POI) Data