Roughly 90% of addressable comScore 200 digital publishers and all Ad Age 100 brands regularly sell and buy advertising in the AppNexus Marketplace

AppNexus

Michael Rubenstein

Mike Tyrrell

Edwin J. Gillis

Robert F Callahan

Mike Nolet

Dave O'Hara

David Yuan

Chip Meakem

College basketball player (1993–1993) Cornell

OpenX

Organization based in Pasadena, California, United States

Centro

Public transportation organization in Central New York

Alphabet Inc.

American holding company and parent company of Google

Google

American multinational technology company

The Trade Desk

MediaMath

Magnite

Organization based in Los Angeles, California, United States

dataxu

Meta Platforms, Inc.

American social media and technology company

Rubicon

Organization based in Lexington, Kentucky, United States

Matomy Media Group

The Seattle Times

Organization based in Seattle, Washington, United States

American Express Company

American multinational financial services corporation

Axel Springer SE

Accordant Media

Financial services company based in New York City, New York, United States

Datapoint Media

Organization based in Waltham, Massachusetts, United States

Democracy Works

House of Kaizen

Manufacturing company based in New York City, New York, United States

Light Reaction

Organization based in New York City, New York, United States

Livingly Media

Organization based in Redwood City, California, United States and owned by AUFEMININ

Underdog Media

Organization based in Santa Barbara, California, United States

Bannerconnect

Organization based in Sittard, Limburg Province, Netherlands

Hybrid Theory

Organization based in London, United Kingdom

Tomorrow TTH

Manufacturing company based in London, United Kingdom

Exact Drive

Organization based in Austin, Texas, United States

Gourmet Ads

Food and drink company based in Hornsby, New South Wales, Australia

Havas Media

Organization based in Puteaux, Hauts-de-Seine Department, France

TripleLift

Beanstock

Financial services company based in Santa Monica, California, United States

Brightcom

Organization based in Herzliya, Tel Aviv District, Israel

33Across

LinkedIn

Organization based in Sunnyvale, California, United States and owned by Microsoft

Adap.Tv

Organization based in Chicago, Illinois, United States

Liftoff

Organization based in Palo Alto, California, United States

Wayfair Inc.

Operam

Ranker

Shazam

Xaxis

Organization based in New York City, New York, United States and owned by WPP

Yashi

Organization based in Toms River, New Jersey, United States

MBuy

Microsoft Corporation

Ouest-France Group

Schibsted Norway

Shoe-D-Vision

Auto Trader

Collective

HLA-Media

Le Figaro

Scibids

Oracle

Xandr, formerly known as AppNexus, is an American multinational technology company operating a cloud-based software platform that enables and optimizes programmatic online advertising. Headquartered in the Flatiron District of New York City, the company has 23 offices in North America, Latin America, Europe, Asia and Australia.

Marketing Companies

Professional Service Companies

Advertising Companies

Software Companies

First Round Capital

Grape Arbor VC

SV Angel

Financial services company based in San Francisco, California, United States

Coriolis Ventures

Marc Andreessen

American entrepreneur, investor, and software engineer

Ron Conway

Khosla Ventures

Kodiak Venture Partners

Financial services company based in Wellesley, Massachusetts, United States

Venrock

American multinational technology corporation

Financial services company based in Menlo Park, California, United States

Tribeca Venture Partners

WPP Ventures

Financial services company based in London, United Kingdom

EquityZen

FJ Labs

Marco Valta

SharesPost Investment Management

Financial services company based in Menlo Park, California, United States and owned by SharesPost

DTCP

Financial services company based in Hamburg, Free and Hanseatic City of Hamburg, Germany

News Corporation

Fidelity Investments

US American multinational financial services corporation

Yahoo! JAPAN

Organization based in Tokyo Metropolis, Japan and owned by Z Holdings

Philippe Corrot

ADM Ventures

Organization based in Lugano, Canton of Ticino, Switzerland

Employee Stock Option Fund (ESO Fund)

Financial services company based in San Mateo, California, United States

Storm Global

Organization based in Zürich, Canton of Zurich, Switzerland

New York City

United States of America

New York metropolitan area

Most populous metropolitan area in the United States

New York

Marketing Consulting Services

Management Consulting Services

Management, Scientific, and Technical Consulting Services

Professional, Scientific, and Technical Services

Software Publishers

Publishing Industries (except Internet)

Information

Advertising Agencies

Advertising, Public Relations, and Related Services

Xandr

Advertising and analytics division of WarnerMedia

Millennial Media

Schibsted

Australian Premium Exchange

Disney Music Group

Organization based in Burbank, California, United States and owned by Walt Disney Studios

Index Exchange

Financial services company based in Toronto, Ontario, Canada

MobileFuse

SoundCloud

Business providing an online audio distribution platform

CtrlShift

Snapchat

ONEcount

Organization based in Fort Lauderdale, Florida, United States

Twitter, Inc.

Spotify

Organization based in Sergipe State, Brazil

Hermès

WeSee

HUMAN

eBay Inc.

Organization based in San Jose, California, United States

Guardian Australia

KPEX New Zealand

Ozone Partners

Group

Management And Public Relations Services

Engineering, Accounting, Research, Management, And Related Services

Prepackaged Software

Computer Programming, Data Processing, And Other Computer Related

Business Services

Advertising

Real Media

Organization based in New York City, New York, United States and owned by 24/7 Media

MediaGlu

Organization based in Baltimore, Maryland, United States

Yieldex

ALENTY

Organization based in Paris, Paris Department, France

Organization based in Louisville, Colorado, United States and owned by AppNexus

Organization based in New York City, New York, United States and owned by Xandr

Aerospike

Technology company based in Mountain View, California, US

Culture Amp

Organization based in Melbourne, Victoria, Australia

Anodot

Jobvite

Organization based in San Mateo, California, United States

Intela

Organization based in Boulder, Colorado, United States and owned by Zeta Global

Talend

Software vendor specializing in big data integration

NGINX

Organization based in San Francisco, California, United States and owned by F5

AppNexus

Company Details

Founded

Employees

Raised

Headquarters Location

Public

Acquired

CEO