EMARKETER buys RetailX's research arm, adds AI Visibility Index data

EMARKETER has acquired the research arm of RetailX, taking on its research team and tools — including the UK500 ranking of top UK ecommerce retailers and the pan-European CustomerX Index — per a September 24 announcement reported by PPC Land. RetailX’s separate events business continues operating independently under an ongoing media partnership with EMARKETER. EMARKETER said it plans to enrich both rankings with data from its own AI Visibility Index, which tracks brand visibility across AI systems including ChatGPT, Gemini and Copilot, and will launch a US edition of the CustomerX Index within weeks; the acquisition price and staff numbers were not disclosed.