Companies
4,251 companies in the AdTech ecosystem
McCann
AcquiredAdvertising Agency
McCann is an American global advertising agency network with offices in over 120 countries, bringing together capabilities across brand identity and design, creative intelligence, and content studios to integrate intelligence, identity, and content for its clients.
Universal Ads
Connected TV & Streaming Advertising
Universal Ads is Comcast's self-serve platform for buying video ads across many TV and streaming publishers from one interface, built on FreeWheel ad technology.
360i
RebrandedDigital Marketing & Advertising Agency
360i, now operating under the Dentsu Creative banner, was a New York City-based digital agency founded in 1998 in Atlanta as a search engine marketing and technology company.
Epsilon
Marketing Technology / Data-Driven Advertising
Epsilon is a marketing technology firm acquired by Publicis Groupe in 2019, now operating as a central pillar of that global network with more than 8,000 employees across over 40 offices worldwide.
IBM iX
AcquiredDigital Experience & Marketing Transformation
IBM iX is a digital agency that works at the intersection of strategy, creativity, and technology, partnering with clients to define strategy, create experiences, and build business by design.
Index Exchange
Programmatic Advertising / Supply-Side Platform (SSP)
Index Exchange is an independent supply-side platform that helps media owners connect with leading brands, operating as a neutral, conflict-free exchange to advance efficiency, transparency, and quality across the programmatic ecosystem.
TBWA Worldwide
Creative Advertising & Brand Strategy
TBWA Worldwide is an international advertising agency headquartered in Midtown Manhattan, New York City, operating as a unit of Omnicom Group since 1993.
AppsFlyer
Marketing Analytics & Attribution
AppsFlyer is a Modern Marketing Cloud that provides brands with the infrastructure and intelligence to connect marketing signals and understand customers across mobile, web, CTV, desktop, and other channels.
iHeartMedia
Audio Media & Advertising
iHeartMedia is a major American audio media company operating over 860 owned radio stations across 160 markets nationwide, with a leading position in analytics and attribution technology driven by its large consumer base.
DoubleVerify
Ad Verification & Brand Safety
DoubleVerify is a publicly traded software company, founded in 2008 and headquartered in New York City, that provides measurement technology, data, and services for digital advertising.
News Corp
Premium Publisher AdTech / Data-Driven Advertising
News Corp is a media company that has expanded its business to encompass online real estate services, digital ad tech, and marketing solutions.
Publicis Media
Media Agency / Media Buying
Publicis Media is one of the world's largest media agency networks, operating as part of Publicis Groupe, that helps clients achieve growth through tailored communications solutions.
eMarketer
Market Research & Data Analytics
eMarketer is a market research firm that helps marketers understand how consumers spend their time and money, and how marketers are reaching them, by aggregating data from thousands of sources to give leading brands, agencies, and media companies a comprehensive view of digital marketing.
IAS (Integral Ad Science)
AcquiredAd Verification & Media Quality
IAS (Integral Ad Science) is a global media measurement and optimization company that delivers actionable data to major advertisers, publishers, and media platforms.
Equativ
Programmatic Advertising / Ad Tech Platform
Equativ is a French advertising technology company that provides a vertically integrated platform — encompassing an ad server, a supply-side platform (SSP), and a demand-side platform (DSP) — serving both advertisers and publishers, with particular focus on Advanced TV and premium publishers.
FCB
MergedFull-Service Advertising & Creative Agency
FCB was one of the largest global advertising agency networks, absorbed into Omnicom's BBDO on December 1, 2025.
IPG Mediabrands
MergedMedia Planning & Buying
IPG Mediabrands was the data management and media buying arm of the Interpublic Group of Companies, which was acquired by Omnicom in 2025 and folded into what became Omnicom Media.
Teads
AdTech — Video Advertising & Programmatic
Teads is a global advertising technology company that emerged to challenge walled-garden dominance in digital advertising, with a mission to transform the open internet into a thriving ecosystem for advertisers, publishers, and audiences.
Tubi
AcquiredStreaming Media / Connected TV Advertising
Tubi is a free, ad-supported streaming service owned by Fox Corporation that offers premium on-demand movies, TV episodes, and original programming to over 97 million monthly active users, operating as a fully ad-supported platform with no subscription or ad-free tier.
HUMAN Security
Cybersecurity / Ad Fraud Prevention
HUMAN Security is an enterprise cybersecurity company, originally founded as White Ops in 2012 and rebranded in 2021, that bundles bot detection across multiple surfaces — including digital advertising, web applications, APIs, and account systems — into a single platform.
Skydance
Media & Entertainment / Streaming / Broadcast Television
Skydance is the media and entertainment company formed when Paramount Skydance completed its acquisition of Warner Bros. Discovery on October 6, 2026, combining the Paramount and Warner Bros. studios, CBS, CNN, TNT, HBO and the Paramount+, HBO Max and Pluto TV streaming services, which keep their own brands.
Effectv
RebrandedTelevision & Advanced TV Advertising
Effectv was Comcast Cable's advertising sales division, formed when Comcast Spotlight was renamed in November 2019.
Visual IQ
AcquiredMarketing Analytics / Multi-Touch Attribution
Visual IQ is a marketing intelligence software company, founded in 2006, that specializes in multi-touch attribution (MTA) modeling of advertising across digital platforms to help brand marketers improve ROI.
Zeta Global
Marketing Technology / Data-Driven Advertising
Zeta Global is an American marketing technology company, founded in 2007, that offers enterprises a suite of multichannel marketing tools focused on creating, maintaining, and monetizing customer relationships.