# CitrusAd (by Epsilon/Publicis) > CitrusAd, an Epsilon company within the Publicis Groupe network, is a leading retail media platform that enables retailers to monetize their digital shelf through sponsored products and display ads. The technology integrates Epsilon's first-party identity data with CitrusAd's real-time auction engine to provide closed-loop measurement and targeted advertising. - URL: https://optimly.ai/brand/citrusad-epsilonpublicis - Slug: citrusad-epsilonpublicis - BAI Score: 88/100 - Archetype: Challenger - Category: Advertising Technology