ipgeolocation.io - Free IP Geolocation API and Accurate GeoIP Lookup Location Database
Tapad - Tapad is a cross-device tracking, analytics and marketing platform.
ipdata.co - Get the Geolocation, Organisation, Currency, Timezone, Calling Code, Flag, Proxy, Tor and Threat intelligence data from any IPv4 or IPv6 address.
TellApart - TellApart helps companies turn individual customer preferences into sales by predicting which items customers are most interested in
ipinfo.io - Simple IP address information.
Crosswise - Crosswise works with partners to enable them to break the multi-screen gap and unleash the full potential of their data.