Neustar MarketShare | 6,051 followers on LinkedIn. Neustar drives the connected world forward helping more than 60 of the Fortune 100 grow, guard and guide their businesses with the most complete understanding of how to connect people, places and things. With the increasing number of connected devices around the world, Neustar, a global information services (IS) leader, gets bigger, better and smarter every day. It’s why Neustar is the undisputed leader in responsible identity resolution, an actionable understanding of who or what is on the other end of every interaction and transaction.