LocationAPI - Instantly locate any device w/ WiFi, celltowers & IP address

Woosmap - Woosmap is a Location-based Search Platform. A unique combination of location search APIs and solutions based on our proprietary data sourcing, without collecting any personal data.

IPTrace - API to build location-aware mobile and web apps

PlacesAPI UK - Turn any HTML container into a high-performance, instant location lookup. Use it standalone or enjoy native support for Algolia InstantSearch.

Antideo - Email, IP address and phone number validation API service

ipstack - ipstack is a free, real-time IP address to location JSON API and database service supporting IPv4 and IPv6 lookup.