WIPmania - WIPmania provides a number of free products and services based on WorldIP geolocation database.

OpenStreetMap - OpenStreetMap is a map of the world, created by people like you and free to use under an open license.

Placecast - Placecast is a location-based mobile data management platform with a demand side server.

Skyhook Wireless - Skyhook uses Wi-Fi access point details to help provide location to apps and devices.

HERE - HERE provides APIs and solutions to build location-aware web and mobile apps.

geoPlugin - geoPlugin is a free and easy webmaster resource that provides geolocation technology.