Companies
4,253 companies in the AdTech ecosystem
RhythmOne
MergedProgrammatic Advertising
RhythmOne — recorded in ATDb as the acquirer/parent of one or more AdTech companies (s375 lineage backfill).
Stagwell Media Network
Media Planning & Buying
Stagwell Media Network is the media planning and buying division of Stagwell Inc., providing integrated media services across traditional and digital channels.
Assembly
RebrandedMedia Agency
Assembly is the global media agency under Stagwell Inc., formed by merging Assembly + ForwardPMX into a single integrated media-buying and planning network. ~1,900 employees across 30+ offices in 20+ countries. Distinct from Assembly Industries (the Advent-backed e-commerce software platform that acquired Pacvue in 2021) despite the shared brand name.
BarkleyOKRP
Full-Service Advertising & Marketing Agency
BarkleyOKRP — recorded in ATDb as the acquirer/parent of one or more AdTech companies (s375 lineage backfill).
Freshworks
Customer Engagement & CRM Software
Freshworks is a global software company that provides cloud-based business software solutions designed to help companies better engage with their customers and employees. Its comprehensive suite includes products for customer support, IT service management, sales, and marketing, catering to businesses of all sizes.
Looker
AcquiredBusiness Intelligence & Data Analytics
Looker is a powerful business intelligence and data analytics platform, now part of Google Cloud, that enables organizations to explore, analyze, and share real-time business insights.
Automattic
Publisher Technology / Content Management
Automattic is the company behind WordPress.com, the world's largest open-source content management system and blogging platform. They also develop other popular digital products and services.
Bazaarvoice
User-Generated Content & Ratings/Reviews
Bazaarvoice is a leading user-generated content (UGC) and ratings & reviews platform that helps brands and retailers collect, manage, and syndicate customer content to drive purchase decisions.
Dentsu Digital
Digital Marketing & Transformation
Dentsu Digital is a Tokyo-based digital marketing company founded on 1 July 2016 by Dentsu to handle digital advertising, data and marketing transformation in Japan. It is 75% owned by Dentsu Group Inc. and 25% by Septeni Holdings, sits within dentsu Japan, and absorbed dentsu health Japan and Dentsu Science Jam on 1 January 2026.
Landvault
AcquiredMetaverse Advertising & Immersive Experience Technology
Landvault (formerly Admix, merged + rebranded June 2022) is an immersive/metaverse experience builder. It was acquired by Infinite Reality in July 2024 (~$450M, all-stock) and now operates as part of Infinite Reality.
Midroll
AcquiredPodcast Advertising & Monetization
Midroll is a podcast advertising network and ad-rep firm. E.W. Scripps bought it in 2015 and sold it to SiriusXM with Stitcher on October 19, 2020; in May 2021 SiriusXM merged Stitcher's ad sales into SXM Media (now SiriusXM Media).
Seismic
Sales Enablement / MarTech
Seismic is a leading sales enablement and marketing software platform that helps organizations deliver engaging, relevant content to their customers and prospects. The platform provides tools for content management, sales engagement, and analytics.
T-Mobile US
Telco Data & Mobile Advertising
Major US wireless carrier and parent of T-Mobile Advertising Solutions. Acquired PushSpring 2019-07-31 to bolster mobile marketing data offerings. Public company (NASDAQ: TMUS).
Ad Age
AdTech & Marketing Trade Media
Leading trade publication and media brand covering the advertising, marketing, and media industries with news, analysis, and industry events.
Alteryx
Analytics Automation & Data Preparation
Alteryx is an analytics automation platform that enables organizations to automate data preparation, blending, and advanced analytics workflows through a low-code/no-code interface.
Brightroll
RebrandedProgrammatic Video Advertising
BrightRoll was a programmatic video advertising platform that pioneered automated video ad buying and selling before being acquired by Yahoo in 2014.
CMI Media Group
Healthcare & Pharmaceutical Advertising
CMI Media Group is a leading healthcare-focused media agency specializing in pharmaceutical and life sciences advertising, offering data-driven media planning, buying, and analytics solutions.
Digitas
Digital Marketing Agency
Digitas is a global marketing and technology agency that combines data, creativity, and technology to deliver connected brand experiences across digital and traditional channels.
Disney Streaming Services
RebrandedStreaming Technology & Direct-to-Consumer Platforms
Historical (2018-2021) brand for Disney's BAMTech-derived technology subsidiary. Powered Disney+ launch Nov 2019. Rebranded to Disney Streaming Aug 3 2021.
Geometry Global
MergedBrand Activation & Shopper Marketing
Geometry Global was WPP's global brand activation and shopper marketing network, specializing in commerce, experiential, and promotional marketing across 56 countries.
JWP Connatix
RebrandedVideo Technology & Programmatic Video Advertising
JWP Connatix is the merged entity formed October 9, 2024 from JW Player + Connatix. CEO Dave Otten (ex-JW Player CEO); David Kashak (ex-Connatix CEO) is Chairman. HQ NYC, with offices in London, Cluj-Napoca, Eindhoven, Skopje, Tel Aviv. Powers 2,000+ media companies, 30B+ monthly video plays. Domain: jwpconnatix.com. Provides video infrastructure + advertising platform combining JW Player's video platform with Connatix's CTV/native video supply.
LiftDNA
AcquiredProgrammatic Advertising / Supply-Side Platform
Supply-side platform acquired by OpenX February 27 2012.
Localytics
AcquiredMobile Analytics & Engagement
Localytics was a mobile engagement and analytics platform that helped brands understand user behavior and deliver personalized in-app experiences — acquired by Upland Software in 2018.
Nexage
AcquiredMobile Advertising Exchange/SSP
Nexage was a leading mobile advertising exchange and supply-side platform (SSP) that pioneered programmatic mobile advertising before being acquired by Millennial Media in 2014.