Companies
3,616 companies in the AdTech ecosystem
The Athletic
Digital Media/Publishing
Subscription-based sports media platform delivering ad-free, in-depth journalism and coverage across major professional and college sports.
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
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.
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.
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.
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.
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.
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.
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.
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.
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.
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
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.
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...
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.
The Weather Company
Weather Data / Digital Media
The Weather Company operates Weather.com, The Weather Channel apps, and digital weather/climate data services. Acquired from IBM by Francisco Partners February 2024 (terms undisclosed; reportedly ~$1B). Pre-IBM ownership: acquired by IBM January 2016 ($2B+ deal that included weather.com but excluded the cable TV channel).
The Yes
MergedCommerce Media / Retail Technology
AI-powered fashion shopping app acquired by Pinterest May 2022 for $300M. Tech integrated into Pinterest shopping recommendations. Standalone app shut down post-acquisition.
The7stars
Media Planning and Buying
The7stars is the UK's largest independent media agency, known for its employee-owned model and data-driven approach to media planning and buying.
Thematic
Customer Experience Analytics / Market Research Technology
Thematic is an AI-powered customer feedback analysis platform that helps businesses understand what customers are saying across various channels. It uses natural language processing (NLP) to identify themes and sentiment in unstructured data, providing actionable insights to improve products, services, and customer experience.
TheoremOne
RebrandedDigital Transformation & Technology Consulting
Engineering and digital transformation consultancy acquired by S4 Capital and merged into Media.Monks in 2022. Media.Monks rebranded to Monks in July 2024. Historical brand: search now resolves to Monks.
ThePlatform
AcquiredVideo Technology Platform
ThePlatform was a pioneering video publishing and monetization platform that powered online video delivery for major media companies before being acquired by Comcast.
Theta Network
Video Infrastructure / Blockchain CDN
Theta Network is a blockchain-powered decentralized video delivery platform that fundamentally reimagines content streaming infrastructure through peer-to-peer technology. By harnessing the unused bandwidth and computing resources of users' devices worldwide, Theta creates a distributed content delivery network (CDN) that significantly reduces operational costs for content providers while simultaneously rewarding network participants with cryptocurrency tokens. The platform addresses critical...
ThinkingData
ThinkingData is a leading data analytics service provider, primarily focused on the gaming industry and other digital businesses. They offer a comprehensive platform for data collection, analysis, and visualization, empowering companies to understand user behavior, optimize operations, and drive growth through data-driven decision-making.
This Old House Ventures
Home Improvement Media
This Old House Ventures is the home-improvement media brand acquired by Roku from TZP Group in March 2021 for $97.8M. Includes the long-running PBS show "This Old House", thisoldhouse.com, magazine, and digital properties. Provides Roku content + branded-content opportunities.