Epsilon

Leading global marketing technology provider with extensive first-party data assets

Epsilon is one of the world's largest marketing technology companies, providing data-driven marketing and advertising solutions to enterprise clients. As a subsidiary of Publicis Groupe (acquired in 2019 for $4.4 billion), Epsilon operates as a distinct brand offering comprehensive services including identity management, customer data platforms, email marketing, loyalty programs, and programmatic advertising. The company manages one of the largest permission-based email databases and consumer transaction data sets globally, processing billions of transactions annually. Epsilon's core offerings span the entire marketing technology stack, from data onboarding and identity resolution to campaign execution and measurement. Their CORE ID identity graph connects online and offline consumer data across devices and channels, enabling personalized marketing at scale. The company serves major brands across retail, financial services, telecommunications, and other verticals, helping them leverage first-party data for more effective customer engagement. As part of Publicis Groupe, Epsilon plays a strategic role in the holding company's data and technology capabilities, working alongside other Publicis entities while maintaining its own brand identity and client relationships. The company continues to invest in privacy-compliant data solutions and AI-powered marketing technologies as the industry shifts away from third-party cookies toward first-party data strategies.