Xandr

Xandr operates as a full-stack adtech platform, creating value by providing programmatic trading infrastructure, tools and marketplaces that connect advertising demand from brands and agencies with digital and TV/CTV supply from publishers and broadcasters. On the buy side, it offers a demand-side platform that allows advertisers and agencies to plan, activate, optimise and measure audience-based campaigns across screens, accessing premium and private marketplace inventory. On the sell side, it provides publishers and broadcasters with a combined ad server and supply-side platform to manage and package inventory, run auctions, configure deals and optimise yield across display, video and OTT/CTV.

The platform’s curated marketplace connects buyers and sellers through pre-packaged, brand-safe inventory and audience segments, simplifying deal workflow. Xandr leverages the scale and data of its underlying exchange and marketplace to increase fill rates and effective CPMs for publishers, and to give buyers access to diverse, premium supply with unified reporting and controls. As part of Microsoft, the technology also supports retail media and broader Microsoft Advertising offerings, extending its value into additional channels and surfaces.

Xandr is the advertising technology division originally formed by AT&T and now owned by Microsoft, providing programmatic infrastructure on both the buy side and sell side for digital and television advertising. Its key products include a demand-side platform for advertisers and agencies, a supply-side platform and ad server for publishers and broadcasters, and a curated marketplace layer connecting premium supply and demand, with particular strength in video, connected TV and addressable TV.

The business generates revenue primarily from percentage fees on media spend and revenue-sharing agreements with publishers that use its platforms to transact programmatic advertising. Core customers are advertisers, media agencies and trading desks buying digital and TV/CTV inventory, and publishers, broadcasters and media owners monetising their inventory via programmatic auctions and deals. Since acquisition, its technology and products are being folded into Microsoft’s broader advertising offering under the Microsoft Branding.