whatismyip.cc - External IP Address lookup tool with option to scan the external IP address.
Snitcher - Snitcher is a web tracking tool to convert visitors into sales leads.
What is My IP Address - Open Source Website To Get Your IPs Address By WebRTC
Clearbit Reveal - Turn anonymous traffic into company data
ipinfo.io - Simple IP address information.
Clearbit - Clearbit provides Business Intelligence APIs