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Founded Year



Acquired | Acquired

About Xandr

Xandr operates as a data-enabled technology platform powering a global marketplace for advertising. The company's data-enables technology platform encompassing Xandr Invest, Xandr Monetize, and Xandr Curate, optimizes return on investment for both buyers and sellers. It was formerly known as Appnexus. The company was founded in 2018 and is based in New York, New York. In December 2021, Xandr was acquired by Microsoft.

Headquarters Location

1 Rockefeller Plaza

New York, New York, 10020,

United States



Expert Collections containing Xandr

Expert Collections are analyst-curated lists that highlight the companies you need to know in the most important technology spaces.

Xandr is included in 2 Expert Collections, including Targeted Marketing Tech.


Targeted Marketing Tech

453 items

This Collection includes companies building technology that enables marketing teams to identify, reach, and engage with consumers seamlessly across channels.


Retail Media Networks

188 items

Tech companies helping retailers build and operate retail media networks. Includes solutions like demand-side platforms, AI-generated content, digital shelf displays, and more.

Xandr Patents

Xandr has filed 86 patents.

The 3 most popular patent topics include:

  • social networking services
  • promotion and marketing communications
  • video on demand services
patents chart

Application Date

Grant Date


Related Topics




Data management, Transaction processing, Job scheduling, Parallel computing, Application programming interfaces


Application Date


Grant Date



Related Topics

Data management, Transaction processing, Job scheduling, Parallel computing, Application programming interfaces



Latest Xandr News

Tetra: Kinetic Sculpture by VolvoxLabs [VVOX]

Feb 13, 2024

Tetra: Kinetic Sculpture Kinetic Sculpture for Xandr, AT&T’s advertising and analytics division. VVOX was brought on to prototype, program and engineer this permanent installation that comes to life through a series of behaviors, both passive and reactive that keep the sculpture in constant flux, with instant reactive changes that physically respond to people passing through the space.

Xandr Frequently Asked Questions (FAQ)

  • When was Xandr founded?

    Xandr was founded in 2018.

  • Where is Xandr's headquarters?

    Xandr's headquarters is located at 1 Rockefeller Plaza, New York.

  • What is Xandr's latest funding round?

    Xandr's latest funding round is Acquired.

  • Who are the investors of Xandr?

    Investors of Xandr include Microsoft, WarnerMedia and FJ Labs.

  • Who are Xandr's competitors?

    Competitors of Xandr include Adagio.


Compare Xandr to Competitors

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Adomik focuses on smart advertising analytics. The company offers a platform that collects, organizes, and enhances advertising data from various sources, providing publishers with comprehensive reporting, price management, market insight, and troubleshooting services. It primarily sells to the digital advertising industry. It was founded in 2012 and is based in Paris, France.

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Fenestra specializes in programmatic productivity management within the digital advertising sector. The company offers a platform that provides analytics, optimization, and automation technology to enhance the effectiveness and efficiency of programmatic media trading for brands and agencies. Fenestra's solutions are designed to integrate with various technology vendors and provide detailed data insights to improve digital advertising performance. It was founded in 2017 and is based in London, England.


MiQ is a programmatic media partner operating in the marketing and advertising industry. The company offers services such as data analytics, creative build, trading insights, and programmatic advertising to help marketers and agencies maximize the value of their data. MiQ primarily serves the marketing and advertising industry. MiQ was formerly known as Media iQ. It was founded in 2010 and is based in London, England.

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On June 8th, 2022, Rivr was acquired by Index Exchange. The terms of the transaction were not disclosed. Rivr provides a traffic shaping and QPS management solution that can be embedded into existing tech stacks. It was founded in 2015 and is based in Berlin, Germany.

Admeld Logo

Admeld provides online publishers with advertising network optimization technology. It helps to capture new revenue streams, control how they sell each impression, and protect their data and brand. It was founded in 2007 and is based in New York, New York. In June 2011, Admeld was acquired by Google.


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