> Enrich.chat gives AI agents verified work emails and mobiles. To use it from an agent, read https://enrich.chat/agents.md . This is the Markdown version of https://enrich.chat/companies-using/appnexus/ # Companies using AppNexus (Xandr) AppNexus, later renamed Xandr, is an advertising technology platform for buying and selling programmatic digital ads. Here are the organizations where it was detected, where it is most common and how to reach the people who run it. By Enrich.chat Editorial. Updated October 21, 2026. **Short answer:** Organizations that use AppNexus (Xandr) include Tata Consultancy Services, UnitedHealth Group, McDonald's, Siemens and PwC. AppNexus (Xandr) is in the advertising and retargeting category; below are the industries where it is most common, how adoption changes with size and the tools found alongside it. ## What is AppNexus (Xandr)? AppNexus, later renamed Xandr, is an advertising technology platform for buying and selling programmatic digital ads. It sits in the advertising and retargeting category and is usually owned by advertising and paid media leaders. ## Which companies use AppNexus (Xandr)? Organizations where AppNexus (Xandr) was detected include Tata Consultancy Services, UnitedHealth Group, McDonald's, Siemens and PwC. The table lists a selection of larger ones in alphabetical order; names link to company profiles. | Company | Industry | Size | | --- | --- | --- | | [Aramark Uniform Services](https://enrich.chat/company/aramark-uniform-services/) | Facilities services | 100,000+ | | [CommonSpirit Health](https://enrich.chat/company/commonspirit-health/) | Hospitals and health care | 100,000+ | | [Compass Group USA](https://enrich.chat/company/compass-group-usa/) | Food and beverages | 100,000+ | | [E.Leclerc](https://enrich.chat/company/e-leclerc/) | Retail | 100,000+ | | [Essilor Group](https://enrich.chat/company/essilor-group/) | Mechanical or industrial engineering | 100,000+ | | [Ford Motor](https://enrich.chat/company/ford-motor/) | Automotive | 100,000+ | | [General Electric](https://enrich.chat/company/general-electric/) | Machinery | 100,000+ | | [H-E-B](https://enrich.chat/company/h-e-b/) | Retail | 100,000+ | | [Hilton Austin](https://enrich.chat/company/hilton-austin/) | Hospitality | 100,000+ | | [Honeywell International](https://enrich.chat/company/honeywell-international/) | Electrical and electronic manufacturing | 100,000+ | | [Itaú Unibanco](https://enrich.chat/company/ita-unibanco/) | Banking | 100,000+ | | [Kaiser Permanente](https://enrich.chat/company/kaiser-permanente/) | Hospitals and health care | 100,000+ | | [La Poste Groupe](https://enrich.chat/company/la-poste-groupe/) | Logistics and supply chain | 100,000+ | | [Lidl in Germany](https://enrich.chat/company/lidl-in-germany/) | Retail | 100,000+ | | [Magna International](https://enrich.chat/company/magna-international/) | Automotive | 100,000+ | | [Mars](https://enrich.chat/company/mars/) | Mechanical or industrial engineering | 100,000+ | | [McDonald's](https://enrich.chat/company/mcdonalds/) | Restaurants | 100,000+ | | [Meta](https://enrich.chat/company/meta/) | Information technology and services | 100,000+ | | [MUFG](https://enrich.chat/company/mufg/) | Financial services | 100,000+ | | [NEC](https://enrich.chat/company/nec/) | Information technology and services | 100,000+ | | [Peugeot](https://enrich.chat/company/peugeot/) | Automotive | 100,000+ | | [PwC](https://enrich.chat/company/pwc/) | Professional training and coaching | 100,000+ | | [Siemens](https://enrich.chat/company/siemens/) | Machinery | 100,000+ | | [Sobeys](https://enrich.chat/company/sobeys/) | Retail | 100,000+ | | [Societe Generale](https://enrich.chat/company/societe-generale/) | Banking | 100,000+ | | [Tata Consultancy Services](https://enrich.chat/company/tata-consultancy-services/) | Information technology and services | 100,000+ | | [Toshiba](https://enrich.chat/company/toshiba/) | Electrical and electronic manufacturing | 100,000+ | | [Toyota North America](https://enrich.chat/company/toyota-north-america/) | Automotive | 100,000+ | | [UnitedHealth Group](https://enrich.chat/company/unitedhealth-group/) | Hospitals and health care | 100,000+ | | [Vodafone](https://enrich.chat/company/vodafone/) | Telecommunications | 100,000+ | ## Which industries use AppNexus (Xandr) most? The bars show, for each industry, the share of listed organizations where AppNexus (Xandr) was detected. **Figure: Where AppNexus (Xandr) shows up most often.** Bars for the share of organizations in each of 8 industries where AppNexus (Xandr) was detected, from Publishing at 31% down to Higher education at 17%. *Share of listed organizations in each industry where AppNexus (Xandr) was detected.* ## Do larger companies use AppNexus (Xandr) more? For each size range, the column shows the share of listed organizations where AppNexus (Xandr) was detected. **Figure: AppNexus (Xandr) by company size.** Six columns, one per size range from 2,000 to over 100,000 employees, showing the share of organizations where AppNexus (Xandr) was detected: 2-5K 8%, 5-10K 11%, 10-25K 11%, 25-50K 12%, 50-100K 14%, 100K+ 14%. *Share of listed organizations in each size range where AppNexus (Xandr) was detected.* ## What tools go with AppNexus (Xandr)? Among the organizations that use AppNexus (Xandr), these tools stand out: each is detected more often alongside AppNexus (Xandr) than across all the organizations listed. The tick on each bar marks that wider average. **Figure: Tools that stand out among AppNexus (Xandr) users.** Bars for the share of AppNexus (Xandr) users that also use each tool, with a tick for the share across all listed organizations: OpenX Ad Exchange 23% against 2%, Rubicon Project 22% against 2%, RTB House 21% against 2%, TripleLift 21% against 2%, 33Across 19% against 2%, Lotame 13% against 2%, Krux (Salesforce DMP) 11% against 2%, Flashtalking 10% against 2%. *Share of organizations using AppNexus (Xandr) where each tool was also detected. The tick marks the share across all listed organizations.* [OpenX Ad Exchange](https://enrich.chat/companies-using/openx/)[Rubicon Project](https://enrich.chat/companies-using/rubicon-project/)[RTB House](https://enrich.chat/companies-using/rtb-house/)[TripleLift](https://enrich.chat/companies-using/triplelift/)[33Across](https://enrich.chat/companies-using/33across/)[Lotame](https://enrich.chat/companies-using/lotame/)[Krux (Salesforce DMP)](https://enrich.chat/companies-using/krux/)[Flashtalking](https://enrich.chat/companies-using/flashtalking/) ## AppNexus (Xandr) by industry Open an industry to see the organizations in it that use AppNexus (Xandr). [Retail](https://enrich.chat/companies-using/appnexus/retail/)[Higher education](https://enrich.chat/companies-using/appnexus/higher-education/)[Information technology and services](https://enrich.chat/companies-using/appnexus/information-technology-and-services/)[Hospitals and health care](https://enrich.chat/companies-using/appnexus/hospitals-and-health-care/)[Financial services](https://enrich.chat/companies-using/appnexus/financial-services/)[Telecommunications](https://enrich.chat/companies-using/appnexus/telecommunications/)[Automotive](https://enrich.chat/companies-using/appnexus/automotive/)[Hospitality](https://enrich.chat/companies-using/appnexus/hospitality/) ## How do you reach the people who run AppNexus (Xandr)? The tool tells you what a company already runs; the people to talk to are usually advertising and paid media leaders. Pick an account from the table, then ask your AI agent for them. ```text Use www.enrich.chat to find the advertising and paid media leaders at [company], with titles and verified work emails ``` Check any other company with the free [tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/), or find a company's [email format](https://enrich.chat/tools/email-format-finder/). ## Frequently asked questions ### What companies use AppNexus (Xandr)? Organizations where AppNexus (Xandr) was detected include Tata Consultancy Services, UnitedHealth Group, McDonald's, Siemens and PwC. The page lists a selection of larger ones with links to their profiles. ### Which industries use AppNexus (Xandr) most? AppNexus (Xandr) shows up most often in publishing, leisure, travel and tourism and luxury goods and jewelry. ### How is AppNexus (Xandr) usage detected? From public signals: code and tags on a company's website, the HTTP headers its servers send, and DNS records. A detected tool shows it was seen, not what the company pays for it. ### Who should I contact at a company that uses AppNexus (Xandr)? Usually advertising and paid media leaders. Ask your AI agent to use www.enrich.chat to find people in those roles at the account, with verified work emails. ## Try this prompt Find the people who run AppNexus (Xandr) ```text Use www.enrich.chat to find the advertising and paid media leaders at [company], with titles and verified work emails ``` ## Related - [Companies using a technology](https://enrich.chat/companies-using/) - [Companies using Facebook Custom Audiences](https://enrich.chat/companies-using/facebook-custom-audiences/) - [Companies using DoubleClick](https://enrich.chat/companies-using/doubleclick/) - [Companies using Adobe Media Optimizer](https://enrich.chat/companies-using/adobe-media-optimizer/) - [Companies using DoubleClick Conversion Tracking](https://enrich.chat/companies-using/doubleclick-conversion/) - [Companies using Google Dynamic Remarketing](https://enrich.chat/companies-using/google-dynamic-remarketing/) - [Companies using LinkedIn Marketing Solutions](https://enrich.chat/companies-using/linkedin-marketing-solutions/) - [Companies using Google Ads Conversion Tracking](https://enrich.chat/companies-using/google-adwords-conversion/) - [Companies using DoubleClick Floodlight](https://enrich.chat/companies-using/doubleclick-floodlight/) - [Tech stack lookup](https://enrich.chat/tools/tech-stack-lookup/)