Xandr

Rebranded

New York, New York, United States · Founded 2018

1001-5000 employees · NASDAQ:XAND

Sourced & current · updated Oct 26, 2026Website

Xandr, now operating as Microsoft Advertising, was the advertising and analytics subsidiary of Microsoft that ran an online platform for buying and selling consumer-centric digital advertising.

Where they sit

Stack tier: Core Platforms (S)

Demand Side Platform (DSP)Supply Side Platform (SSP)Programmatic Platform

Formerly a major programmatic advertising platform offering buy-side and sell-side solutions; consolidated into Microsoft Advertising in 2023 with the Xandr brand retired.