Neustar

Neustar is a premier identity resolution company that was acquired by TransUnion for $3.1 billion in December 2021, with its marketing, fraud, and communications solutions now integrated into TransUnion's unified B2B portfolio. Originally founded as a Lockheed Martin business unit in 1998 and spun off in 1999, Neustar evolved from managing North American telecommunications numbering plans to becoming a leader in digital identity resolution and data analytics. The company's core OneID platform enables trusted connections between businesses and consumers at critical moments by unifying customer data across online and offline channels through advanced AI-powered identity resolution technology.

The platform specializes in email intelligence and deliverability solutions that help organizations maximize email marketing effectiveness while reducing compliance risks. Key email-focused capabilities include Email Intelligence services that provide insights on deliverability, activity scores, and identity linkages to ensure messages reach the intended recipients, email address validation and verification to reduce bounce rates and protect IP reputation, contact center solutions that identify each customer's preferred email address and alternative emails for hard-to-reach consumers, and identity appends that expand reach by updating customer contact information with valid, deliverable email addresses. These solutions are powered by TransUnion's enhanced identity graph covering over 1.6 billion U.S. email addresses ranked for quality and deliverability, with 22% growth in active, appendable emails following the integration.

Ideal for enterprises, eCommerce companies, financial services organizations, and contact centers that need sophisticated email marketing capabilities backed by enterprise-grade identity resolution. Neustar (now part of TransUnion TruAudience, TruValidate, and TruContact solutions) serves businesses requiring accurate customer identity verification, email deliverability optimization, and omnichannel customer engagement strategies. The platform is particularly valuable for organizations dealing with high email volumes, regulatory compliance requirements like TCPA, and complex customer data management challenges, especially those needing to reduce email bounce rates, prevent sending sensitive information to wrong recipients, and maintain strong IP reputation in an increasingly regulated email environment.