CitrusAd | 24,800 followers on LinkedIn. Retail Media & E-Commerce Monetization. Retailer-First SaaS Software is our D.N.A | CitrusAd has become the retail industry’s preferred Retail Media Platform for sponsored product ads, banners and email ads. Since becoming part of Epsilon, we now offer both on-site and off-site advertising to retailers and their supplier brands through a unified platform. CitrusAd is scalable, auction based advertising software built for e-commerce retailers.