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Companies

3,792 companies in the AdTech ecosystem

Telestream

Telestream

Video Technology/Broadcast Technology

Telestream provides workflow automation, media processing, and quality monitoring solutions for video content across broadcast, streaming, and enterprise markets.

Video TechnologyNevada City, California
Telly

Telly

Connected TV (CTV) / Ad-Supported Streaming

Telly is a free smart TV platform that provides hardware to consumers in exchange for viewing advertising. The company offers a unique ad-supported model with guaranteed ad exposure and detailed viewership data for advertisers.

Connected TV PlatformSan Francisco, California
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Tencent Advertising

Digital Advertising / Social & Video Advertising

Tencent Advertising is the digital advertising arm of Tencent, offering marketers access to China's largest social and entertainment ecosystem including WeChat, QQ, and Tencent Video.

Video Advertising PlatformIn-Game AdvertisingShenzhen, Guangdong
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 & Cloud Data Warehousing

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
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Terri & Sandy

Creative Advertising Agency

Terri & Sandy is an independent, women-owned creative advertising agency known for bold, insight-driven campaigns that challenge category conventions.

Marketing AgencyNew York, New York
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

Acquired

Digital Media / Sports Journalism

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

Content DiscoveryNew York, New York
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The Barbarian Group

Acquired

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 Home Depot, Inc.

The Home Depot, Inc.

Retail Media

The Home Depot is the largest U.S. home-improvement retailer (founded 1978, Atlanta). It operates Orange Apron Media, its retail media network (rebranded 2024), letting brands advertise across its digital and in-store properties.

Attribution & AnalyticsRetail Media PlatformAtlanta, Georgia
The Kroger Co.

The Kroger Co.

Retail Media / Commerce Media

The Kroger Co. is one of the largest U.S. grocery retailers (founded 1883, Cincinnati). Its retail media network, Kroger Precision Marketing, is powered by data-science subsidiary 84.51° and loyalty-card data from ~60M households.

Attribution & AnalyticsRetail Media PlatformCincinnati, Ohio
The Marketing Cloud

The Marketing Cloud

Marketing Technology / 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 Agency

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

Acquired

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 & First-Party Data 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