| Company type | Subsidiary |
|---|---|
| Industry | Online advertising |
| Founded | 2007 |
| Headquarters | New York City, United States |
Area served | Worldwide |
Key people | Michael Rubenstein (president) |
| Products | Infrastructure as a service Ad serving Analytics |
Number of employees | 1000+ |
| Parent | Xandr |
Xandr, formerly known as AppNexus, is an American multinational technology company operating a cloud-based software platform that enables and optimizes programmatic online advertising.[1] Headquartered in the Flatiron District of New York City, the company has 23 offices in North America, Latin America, Europe, Asia and Australia.[citation needed]
AppNexus offers online auction infrastructure and technology for data management, optimization, financial clearing and support for directly negotiated advertising campaigns. It has both demand-side platform (DSP), supply-side platform (SSP), and ad serving functionalities. It integrates with advertising sources including Google's "Authorized Buyers" ad exchange, Magnite, Pubmatic and other aggregators.[2][3] It operates out of multiple data centers, including one in Amsterdam serving Europe and the Middle East, in a facility shared with Equinix.[4]
In 2016, AppNexus was ranked #21 on Forbes Magazine's "The Cloud 100" list.[5]
In June 2018, AT&T announced it was acquiring the company and putting it under its Xandr division as a subsidiary.[6] AppNexus was reportedly sold for $1.6 billion, while most news outlets speculated the company did not sell for less than $2 billion.[7]
In October 2019, Xandr purchased Clypd, a privately-held technology company focused on enabling programmatic buying of linear television advertising.[8]
In December 2021, AT&T announced that they had agreed to sell Xandr to Microsoft for an undisclosed price, subject to customary closing conditions, including regulatory reviews.[9]
- ^ Stephanie Clifford (2010-03-12). "Instant Ads Set the Pace on the Web". The New York Times. Archived from the original on 17 March 2010. Retrieved 2010-03-12.
- ^ AppNexus (2010-03-12). "AppNexus Officially Launches Ad Platform Fueling the Real-Time Bidding Revolution in Display Advertising". Press release (Press release). PR Newswire. Archived from the original on 22 March 2010. Retrieved 2010-03-12.
- ^ "AppNexus Expands Video Buying, Adds New Video Demand Partners". www.mediapost.com. Retrieved 2016-05-22.
- ^ Cite error: The named reference
gig2010was invoked but never defined (see the help page). - ^ "The Cloud 100". Forbes. Retrieved 17 November 2016.
- ^ "AT&T to Acquire AppNexus". www.businesswire.com. 25 June 2018. Retrieved 23 December 2019.
- ^ "AT&T Will Acquire AppNexus | AdExchanger". AdExchanger. 2018-06-25. Retrieved 2018-07-13.
- ^ "Xandr Acquired Clypt in Move to Build Connevted TV Empire". 18 October 2019..
- ^ Foley, Mary Jo (December 21, 2021). "Microsoft to buy Xandr ad marketplace from AT&T". ZDNet. Retrieved December 21, 2021.
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