Xandr. com is an American technology company specializing in digital advertising and advanced TV solutions. Founded in 2007 as AppNexus, the company rebranded to Xandr in 2018 and is currently headquartered in New York City, New York.

Xandr offers a wide range of products and services aimed at helping advertisers and publishers reach their audiences effectively. Its main products include the Xandr Invest, a buying platform that allows advertisers to plan, execute, and optimize their digital advertising campaigns; the Xandr Monetize, a selling platform that helps publishers manage and maximize their advertising inventory; and the Xandr Community, an open marketplace connecting buyers and sellers across digital advertising formats. Operating on a global scale, Xandr has established a strong presence through partnerships and subsidiaries.

Notably, it has joint ventures with WarnerMedia and its parent company AT&T, allowing Xandr to leverage their vast media and distribution assets. Additionally, Xandr has formed partnerships with various media companies, publishers, agencies, and technology platforms to extend its reach and provide comprehensive advertising solutions. In terms of market position, Xandr is a prominent player in the digital advertising industry.

It competes with other major advertising technology companies like Google, Facebook, and Amazon. With its advanced TV solutions, Xandr aims to capitalize on the growing demand for targeted advertising on streaming platforms and connected TVs. Over the years, Xandr has achieved significant milestones and undergone strategic changes.

In 2011, the company launched the AppNexus Marketplace, a programmatic platform that became one of the world's largest and most active marketplaces for digital advertising. The rebranding to Xandr in 2018 marked the company's focus on a more holistic and data-driven approach to advertising. As of the latest information available, Xandr continues to innovate and expand its product offerings.

It remains a key player in the digital advertising industry, making strategic moves to shape the future of advanced TV advertising and maintain its position as a leader in the global market