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Companies

3,599 companies in the AdTech ecosystem

Tencent Holdings

Tencent Holdings

AdTech / MarTech / Digital Advertising Platform

Tencent Holdings Limited is one of the world's largest and most influential technology conglomerates, headquartered in Shenzhen, China. Founded in 1998, Tencent has evolved from a messaging service provider into a comprehensive digital ecosystem encompassing social media, gaming, fintech, cloud services, and advertising technology. The company's flagship products include WeChat (Weixin), China's super-app with over 1.3 billion monthly active users, QQ messaging platform, and a vast portfolio ...

Mobile Ad PlatformIn-Game AdvertisingShenzhen, Guangdong, China, Guangdong
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Teneo

Management Consulting & Strategic Communications

Teneo is a global CEO advisory and management consulting firm that helps senior executives navigate complex business, political, and reputational challenges.

Marketing AgencyNew York, New York
Tenjin

Tenjin

Mobile Attribution and Analytics

Tenjin is a mobile marketing infrastructure platform providing attribution, analytics, and data management solutions for mobile app marketers and game developers.

Attribution & AnalyticsAd Fraud PreventionSan Francisco, California
Tenor

Tenor

Acquired

Content Platform/Visual Search

A GIF search engine and platform that enables users to discover, share, and integrate animated GIFs across messaging apps and social platforms.

Creative PlatformContent DiscoverySan Mateo, California
Teradata

Teradata

Data Analytics & Marketing Intelligence

Teradata is an enterprise cloud analytics and data platform company that helps organizations unify and analyze massive volumes of data to drive business decisions at scale.

Data & AnalyticsCustomer Data PlatformSan Diego, California
Terbine

Terbine

Smart City Technology / IoT Data Management / Urban Infrastructure Intelligence

Terbine is an enterprise technology company specializing in IoT data management, artificial intelligence, and computer vision solutions designed specifically for smart cities and critical infrastructure applications. The company operates a sophisticated data intelligence platform that serves as a central nervous system for urban environments, capable of aggregating and analyzing disparate streams of sensor data, visual information, and IoT telemetry from complex city systems. By transforming ...

Data Management PlatformMarketing Technology
Terminus

Terminus

Account-Based Marketing (ABM) Platform

Terminus is a leading AdTech Platform that helps B2B companies engage their target accounts through personalized advertising and account-based marketing campaigns.

Attribution & AnalyticsDemand Side Platform (DSP)Atlanta, Georgia
Termly

Termly

Privacy Compliance & Consent Management

Termly is a leading provider of privacy management and compliance solutions for businesses. They help organizations comply with various data privacy regulations, such as GDPR and CCPA, through their suite of tools and services.

Privacy & Consent ManagementMinneapolis, Minnesota
Tezos

Tezos

Blockchain Infrastructure / Smart Contract Platform

Tezos is a decentralized, open-source blockchain network that enables peer-to-peer transactions and serves as a platform for deploying smart contracts. Distinguished by its self-amending protocol, Tezos allows the network to upgrade itself without requiring hard forks, providing a more sustainable and adaptable blockchain infrastructure. The platform utilizes a liquid proof-of-stake consensus mechanism that enables token holders to participate in network governance and validation while mainta...

Blockchain AdvertisingSwitzerland (Tezos Foundation)
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The Athletic

Digital Media/Publishing

Subscription-based sports media platform delivering ad-free, in-depth journalism and coverage across major professional and college sports.

Content DiscoverySan Francisco, California
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The Barbarian Group

Digital & Innovation Agency

New York digital and innovation agency acquired by Cheil in stages (2009-2014, ultimately 100%). Significantly diminished from its 2010s peak — Boston and San Francisco offices closed by 2012; ~40% staff reduction in subsequent years — but continues to operate as a single-office NY shop under Cheil ownership. Sources: Digiday post-mortem + Wikipedia.

The Drum

The Drum

Marketing and Advertising Media

The Drum is a global media platform and marketing community providing news, insights, awards, and events for the advertising, marketing, and creative industries.

Marketing TechnologyGlasgow, Scotland
The Harris Poll

The Harris Poll

Market Research & Consumer Intelligence

Iconic public-opinion / market research firm (founded 1963 by Louis Harris). Anchor of Stagwell's research insights division. Stagwell acquired 2017.

Data & AnalyticsVerification & MeasurementNew York, NY
The Marketing Cloud

The Marketing Cloud

Marketing Technology (MarTech) / AdTech SaaS

Stagwell's SaaS division housing PRophet, QuestBrand, QuestDIY, ID Graph, and Agent Cloud (Oct 2025). Q4 2025 revenue $105M, +41% YoY.

AI-Powered PlatformMarketing CloudNew York, New York
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The Marketing Store

Shopper Marketing & Promotional Agency

The Marketing Store is a global shopper-marketing and promotional-marketing agency, with HQ in Chicago and London. Originally part of TMS Inc., later acquired by BlueFocus and divested to Plus Company in May 2021. Notable for long-running global accounts including the McDonald's Happy Meal program. Sources: Plus Company portfolio + LinkedIn.

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The Martin Agency

Creative Advertising & Brand Strategy

The Martin Agency is a renowned full-service creative advertising agency known for iconic campaigns and culturally resonant brand storytelling, operating as a subsidiary of IPG.

Marketing AgencyRichmond, Virginia
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The Monkeys

Creative Agency

Sydney-based creative agency, Australia's most-awarded indie at acquisition (2017). Brand retired in 2022 Song rebrand. Sources: The Drum acquisitions list + Campaign Asia rebrand coverage.

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The New York Times

Premium Publisher / Digital Advertising

The New York Times is a leading global news publisher that has built a sophisticated first-party data and digital advertising platform, leveraging its massive authenticated subscriber base to offer premium, privacy-safe ad targeting.

Contextual AdvertisingNative AdvertisingNew York, New York
The Roku Channel

The Roku Channel

Connected TV (CTV) Advertising

Roku's free ad-supported streaming service offering movies, TV shows, and live content with integrated advertising opportunities for brands.

CTV PlatformVideo Advertising PlatformSan Jose, California
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The Search Monitor

Brand Protection and Competitive Intelligence

The Search Monitor provides brand protection and competitive intelligence solutions for paid search advertising, monitoring trademark bidding and ad compliance across search engines.

PPC ManagementVerification PlatformNew York, New York
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The Stable

Commerce & Retail Marketing Agency

Omnichannel commerce agency acquired August 2022. ~400 staff; helps retail/CPG brands launch DTC and marketplace experiences. Folded into Song commerce practice. Sources: Accenture Newsroom + Marketing Dive.

The Trade Desk

The Trade Desk

Programmatic Advertising / Demand-Side Platform (DSP)

Premium streaming TV. One-click commerce. Trusted journalism. The world’s most popular audio and podcasts. All these amazing online experiences thrive on an open internet. And they’re all fueled by relevant advertising.

Demand Side Platform (DSP)Ventura, California
The Walt Disney Company

The Walt Disney Company

Premium Video Advertising / Connected TV / Streaming Advertising

The Walt Disney Company is a dominant player in the AdTech ecosystem, leveraging its vast media assets and content portfolio to offer comprehensive advertising solutions. As a parent company, Disney owns and operates several key platforms crucial for advertisers, including Hulu, ESPN, and the rapidly growing Disney+ streaming service. Disney's advertising capabilities span linear TV, digital video, and connected TV, providing advertisers with diverse opportunities to reach target audiences ac...

Connected TV PlatformVideo Advertising PlatformBurbank, California
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The Washington Post

Publisher Technology & Digital Advertising

The Washington Post is a legacy media powerhouse that has evolved into a significant AdTech player, developing its own proprietary advertising technology stack used both internally and licensed to other publishers.

Data & AnalyticsAd ServerWashington, D.C.