Products
By Team
Sales
Multithread effectively and personalize outreach to convert deals faster
Social Media Marketing
Elevate social presence and drive business growth from social media
RevOps
Identify and prioritize high-intent leads, and improve sales effectiveness
Events & Field Marketing
Find and connect with ICP attendees, and improve event outcomes
Resources
.png)
.png)
Xandr
What Does Xandr Do?
Xandr, now integrated into Microsoft Advertising, is a data-enabled technology platform powering a global marketplace for premium advertising. It provides sophisticated solutions for both advertisers (demand-side) and publishers (supply-side), leveraging data and technology to make advertising more effective and relevant. Xandr's technology was built on the foundation of AppNexus and includes a leading ad server, SSP (Supply-Side Platform), and DSP (Demand-Side Platform), enabling scaled, sophisticated campaigns and monetization strategies.
Where Is Xandr's Headquarters?
HQ Function
Serves as a major hub for Microsoft's advertising technology development, sales, and operations, building on Xandr's legacy in programmatic advertising and engineering.
Notable Features:
The 28 West 23rd Street office, historically the hub for AppNexus and then Xandr, was known for its modern, open-plan workspace in the Flatiron District, designed to foster collaboration and innovation.
Work Culture:
As part of Microsoft, the work culture emphasizes innovation, customer-centricity, diversity, and inclusion, integrated with the dynamic, fast-paced nature of the advertising technology sector. The legacy Xandr culture was recognized for its strong engineering roots and entrepreneurial drive.
HQ Significance:
The New York hub remains strategically important due to its high concentration of advertising technology talent and its proximity to major advertising agencies, global brands, and leading media companies. It acts as a key center for Microsoft's East Coast advertising business and global ad tech development.
Values Reflected in HQ: The New York operational hub reflects values of cutting-edge innovation, industry collaboration, and a deep connection to the advertising ecosystem. Microsoft's overarching corporate values of trust, accountability, and empowering others are now central to its operations.
Location:
Leveraging Microsoft's extensive global infrastructure and footprint, Xandr's technology and services provide comprehensive support to advertisers and publishers across North America, Europe, Asia-Pacific, Latin America, and other emerging markets. This global support system includes dedicated sales and support teams, strategically located data centers, and distributed engineering talent worldwide, all working to power its sophisticated advertising marketplace, campaign management tools, and publisher monetization solutions.
Street Address:
28 West 23rd Street
City:
New York
State/Province:
NY
Country:
USA
Where Else Does Xandr Operate Around the World?
London, United Kingdom
Address: Microsoft Paddington, 2 Kingdom Street, London, W2 6BD, United Kingdom
Supports a diverse range of advertisers and publishers across the EMEA region, offering localized expertise, client services, and access to Xandr's global advertising marketplace and Microsoft's broader advertising solutions.
Sydney, NSW, Australia
Address: Microsoft Sydney, 1 Denison Street, North Sydney, NSW 2060, Australia
Addresses the rapidly expanding digital advertising market in Australia, New Zealand, and Southeast Asia, providing Xandr's advanced advertising solutions tailored to regional needs.
Hamburg, Germany
Address: Microsoft Germany (various locations, including Hamburg operations), Am Sandtorkai/Speicherstadt, Hamburg, Germany (representative area for ad tech presence).
Caters to the specific requirements of the German-speaking advertising market, which is characterized by its strong emphasis on data privacy, a mature publisher ecosystem, and sophisticated advertisers.
Buying Intent Signals for Xandr
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
Who's Leading Xandr? Meet the Executive Team
As of April 2025, Xandr' leadership includes:
Who's Investing in Xandr?
Xandr has been backed by several prominent investors over the years, including:
What Leadership Changes Has Xandr Seen Recently?
In the last 12 months, Xandr's executive leadership has been largely stable and deeply integrated within the broader Microsoft Advertising organizational structure following the acquisition. Public announcements specifically branding high-level executive hires or exits solely under 'Xandr' have been minimal, as the strategic focus remains on leveraging the combined leadership strengths of Microsoft Advertising and the Xandr talent pool. Key leadership roles for Xandr are established within Microsoft.
What Technology (Tech Stack) Is Used byXandr?
Discover the tools Xandr uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Xandr Email Formats and Examples
As Xandr is now fully integrated into Microsoft, employees primarily use standard Microsoft corporate email addresses. The most common and reliable format for reaching Xandr personnel, as well as other Microsoft employees, is [first].[last]@microsoft.com. Variations might exist but this is the predominant professional format.
[first].[last]@microsoft.com
Format
jane.doe@microsoft.com
Example
95%
Success rate
What's the Latest News About Xandr?
Digiday • March 5, 2024
Xandr Integration Fuels Microsoft's Retail Media and Netflix Advertising Ambitions
Microsoft Advertising's CVP Rob Wilk elaborated on how the strategic integration of Xandr is pivotal to expanding the company's footprint in retail media, significantly enhancing the advertising partnership with Netflix, and advancing its overall ad tech stack. Xandr's robust demand-side (DSP) and supply-side (SSP) capabilities are fundamental to these ambitious growth strategies....more
Microsoft Advertising Blog • January 23, 2024
Microsoft Advertising Expands CTV Offering with Roku, Leveraging Xandr Platform
Microsoft announced an important expansion of its partnership with Roku, enabling advertisers to seamlessly purchase Roku inventory directly via the Microsoft Advertising Platform. This integration, significantly powered by Xandr's underlying technology, substantially strengthens Microsoft’s Connected TV (CTV) advertising capabilities and reach....more
Microsoft Advertising Blog • November 14, 2023
The next era of Microsoft Invest, with AI at the core
Microsoft Advertising highlighted the evolution of Microsoft Invest (its DSP, built on Xandr's Invest DSP technology), emphasizing the integration of advanced AI capabilities to empower advertisers with smarter targeting, automated optimization, and deeper insights for their campaigns....more
Highperformr's free tools for company research
Explore Employees by Region or Country
See where a company’s workforce is located, by country or region.
View Funding Details
View past and recent funding rounds with amounts and investors.
Understand Revenue Insights
Understand company revenue estimates and financial scale.
Track Active Job Openings
Track active roles and hiring trends to spot growth signals.
Review Product and Offerings
Discover what a company offers—products, platforms, and solutions.
Get SIC or NAICS Codes
Get the company’s official SIC and NAICS classifications.
Analyze Website Traffic Trends
Analyze visitor volume, engagement, and top traffic sources.
Discover Social Profiles and Engagement
Explore LinkedIn, Twitter, and other active social profiles.
Identify Top Competitors
Identify top competitors based on similar business traits.
Research and Discover Companies with Highperformr — Smarter, Faster
Explore companies in depth — from the tech they use to recent funding, hiring trends, and buyer signals — all in one powerful view.
Highperformr AI helps you surface the right accounts and enrich your CRM with verified company and contact insights, so your teams can prioritize and engage faster.
- Track intent signals to find buyers who are actively in-market
- Enrich contacts and companies instantly, no need to switch tools
- Automate workflows to stay ahead of every change
- Connect your CRM & tools for seamless data sync and activation
Thousands of companies, including Xandr, are just a search away.