Particular Audience is an AI-native retail media and personalisation platform that unifies search, personalisation, and sponsored product decisioning into a single ranking system. Founded in 2017, PA helps retailers maximise profit-per-pixel by optimising net profit per session—balancing relevance, conversion, margin, and ad yield in real time. Its multimodal machine-learning platform replaces legacy keyword and rules-based approaches, enabling automated, intent-aware retail media without degrading the shopper experience.