Neustar

A leading identity resolution and marketing analytics provider, now operating as a key subsidiary within TransUnion's data and analytics ecosystem

Neustar is a prominent information services and identity resolution company that provides data-driven solutions across marketing, fraud prevention, risk management, and communications intelligence. Originally founded as a neutral third-party administrator for the North American Numbering Plan, Neustar evolved into a comprehensive data and analytics powerhouse serving enterprises across multiple industries. Its capabilities span identity resolution, audience intelligence, analytics, and real-time decisioning, making it a significant player in the AdTech and MarTech ecosystems. In 2021, TransUnion completed its acquisition of Neustar, integrating its identity resolution and marketing analytics capabilities into TransUnion's broader data and credit information portfolio. As a TransUnion subsidiary, Neustar continues to operate and deliver its suite of products under the Neustar brand, leveraging TransUnion's global reach and data assets to enhance its offerings. This combination strengthened Neustar's position in identity-based marketing and fraud prevention by pairing its OneID identity graph with TransUnion's extensive consumer data. Neustar's core value in the AdTech ecosystem lies in its ability to connect disparate data sources through identity resolution, enabling marketers to build accurate audience segments, measure campaign performance, and personalize customer experiences across channels. Its solutions are widely used by financial services firms, telecommunications companies, retailers, and media organizations seeking to improve targeting accuracy, reduce fraud, and comply with evolving privacy regulations.