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Companies

4,253 companies in the AdTech ecosystem

R

RhythmOne

Merged

Programmatic Advertising

RhythmOne — recorded in ATDb as the acquirer/parent of one or more AdTech companies (s375 lineage backfill).

Demand Side Platform (DSP)Connected TV PlatformSan Francisco, California
S

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.

Marketing AgencyProgrammatic PlatformNew York, New York
Assembly

Assembly

Rebranded

Media 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.

Attribution & AnalyticsMarketing AutomationNew York, New York
B

BarkleyOKRP

Full-Service Advertising & Marketing Agency

BarkleyOKRP — recorded in ATDb as the acquirer/parent of one or more AdTech companies (s375 lineage backfill).

Marketing AgencyPerformance MarketingKansas City, Missouri
Freshworks

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.

Marketing CloudMarketing AutomationSan Mateo, California
Looker

Looker

Acquired

Business 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.

Data & AnalyticsAttribution & AnalyticsSan Francisco, California
Automattic

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.

Marketing TechnologyMarketing PlatformSan Francisco, California
Bazaarvoice

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.

E-commerce MarketingCustomer EngagementAustin, Texas
Dentsu Digital

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.

Marketing AgencyPerformance MarketingTokyo
L

Landvault

Acquired

Metaverse 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.

In-Game AdvertisingProgrammatic PlatformLondon
Midroll

Midroll

Acquired

Podcast 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).

Audio AdvertisingProgrammatic PlatformLos Angeles, California
Seismic

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.

Marketing TechnologyMarketing PlatformSan Diego, California
T

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).

Customer Data PlatformIdentity ResolutionBellevue, Washington
Ad Age

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.

Marketing TechnologyChicago, Illinois
Alteryx

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.

Data & AnalyticsMarketing AnalyticsIrvine, California
B

Brightroll

Rebranded

Programmatic Video Advertising

BrightRoll was a programmatic video advertising platform that pioneered automated video ad buying and selling before being acquired by Yahoo in 2014.

Video Advertising PlatformProgrammatic PlatformSan Francisco, California
C

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.

Attribution & AnalyticsVertical Marketing PlatformWayne, Pennsylvania
Digitas

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.

Marketing AgencyPerformance MarketingBoston, Massachusetts
D

Disney Streaming Services

Rebranded

Streaming 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.

Connected TV PlatformVideo TechnologyNew York, New York
G

Geometry Global

Merged

Brand 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.

Marketing AgencyLondon
JWP Connatix

JWP Connatix

Rebranded

Video 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.

Connected TV PlatformVideo Advertising PlatformNew York City, New York
L

LiftDNA

Acquired

Programmatic Advertising / Supply-Side Platform

Supply-side platform acquired by OpenX February 27 2012.

Supply Side Platform (SSP)Programmatic PlatformSan Francisco, California
Localytics

Localytics

Acquired

Mobile 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.

Marketing AnalyticsMobile MarketingBoston, Massachusetts
N

Nexage

Acquired

Mobile 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.

Mobile Ad PlatformAd ExchangeBoston, Massachusetts