pubX

The business model centres on being an AI-driven optimisation and marketplace layer on top of existing programmatic advertising rails. For publishers, it ingests header bidding and ad-server data to model auction behaviour and generate dynamic floor prices and yield recommendations, delivered via a bid adapter and supporting tools. This aims to increase effective CPMs and overall programmatic revenue without forcing publishers to replace their existing stack (e.g. Prebid and GAM). For advertisers and agencies, it offers a buying-agent platform that accepts campaign parameters and automatically evaluates publisher inventory, builds segments, and activates deals through buyers’ existing DSPs. An AI-to-AI marketplace function matches publisher and advertiser agents to negotiate and execute curated programmatic deals. Value is created by increasing publisher revenue, improving campaign performance, and simplifying execution flows, while leveraging publishers’ first-party data and existing infrastructure.

pubx.ai is a UK-based advertising technology company focused on programmatic yield optimisation for digital publishers and curated buying for advertisers. It uses machine learning models trained on large volumes of auction and ad-server data to set dynamic floor prices, analyse bidstreams, and create deal opportunities between publishers and advertisers over existing programmatic infrastructure.

The company provides tools for publishers to integrate its pricing and analytics via a bid adapter and JavaScript tag, and a buying-agent platform for advertisers and agencies to submit campaign briefs that are translated into programmatic deals. Revenue is generated primarily from performance-based and managed-service commercial agreements with publishers and paid campaign or platform fees from advertisers and agencies, rather than from consumer-facing services.