ZabaSearch - Find people free with Zabasearch directory engine that includes free people search, reverse phone number lookup, address lookup, and more.

DiscoverOrg - DiscoverOrg is an IT sales intelligence platform providing technology marketers access to data, IT org charts, and real time projects.

RealPeopleSearch - RealPeopleSearch is a web-based software that allows you to get the basic and public record of the concerned person within a few minutes by providing little information.

Clearbit - Clearbit provides Business Intelligence APIs

FindPeopleFast - FindPeopleFast is an online people search platform that allows you to get the results of the people within a few minutes by providing the first and last name or phone number.

Datanyze - The sales prospecting tool powered by technology data