GeoNode.org - Open Source Geospatial Content Management System
Geopointe - Geopointe enables Salesforce users to gain spatial insights via maps and apply geography to business processes.
Clearip - Clearip provides the IP intelligence and fraud detection API in the market.
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.
WIPmania - WIPmania provides a number of free products and services based on WorldIP geolocation database.
Google Maps API - Choose Google Maps Platform to create immersive location experiences and make better business decisions with accurate real time data & dynamic imagery.