Eulerian Tag Manager Eulerian is a SaaS publisher of marketing performance measurement software. Marketing teams can improve the performance of their digital campaigns with its integrated platform, which combines unified and comprehensive data collection, audience measurement, advanced attribution capabilities, and a CDP. The all-in-one platform offers a wide range of features, maximizes marketing campaign ROI, and streamlines technology costs. Eulerian is also a sovereign platform certified by the CNIL (GDPR). Eulerian's experts help advertisers and agencies maximize their solutions' potential and increase their campaigns' performance without losing sight of their ROI goals.