Companies
4,248 companies in the AdTech ecosystem
The Stable
AcquiredCommerce & 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.
ValueClick
RebrandedPerformance Marketing / Affiliate Marketing / Digital Advertising
ValueClick was a leading performance-based digital advertising network that connected advertisers with publishers through cost-per-click and affiliate marketing models before rebranding as Conversant.
Vevo
Video Advertising / Music Entertainment
Vevo is the world's largest premium music video platform, delivering music video content and advertising solutions across connected devices.
Webdam
AcquiredDigital Asset Management (DAM)
Webdam, acquired by Bynder in 2018, is a cloud-based digital asset management (DAM) platform that helps marketing and creative teams organize, manage, and distribute brand assets at scale.
Work & Co
AcquiredDigital Product Design Agency
Premium digital product company acquired Jan 2024. ~400 staff; Forbes "Most Consequential Agencies" recognition. Notable for product-design discipline; clients include T-Mobile, Mailchimp, Apple Music, Mercedes-Benz. Sources: Accenture Newsroom + Ad Age.
WPP Production
Content Production & Marketing Services
Global production company launched February 23, 2026, consolidating production teams across Hogarth, Ogilvy, and VML into a single 10,000-person unit. WPP committed £300M of annual investment. Led by CEO Richard Glasson, previously CEO of Hogarth. Operates as the production arm of WPP plc, serving WPP Media and creative agencies across the holdco.
160over90
AcquiredCultural & Sponsorship Marketing
Cultural-marketing agency acquired by Publicis Groupe April 2026 (closing). Focused on sports + entertainment sponsorship + cultural relevance.
Adap.tv
AcquiredProgrammatic Video Advertising
Adap.tv was a pioneering video advertising platform that provided programmatic buying and selling solutions for digital video advertising before being acquired by AOL in 2013.
Akamai
Cloud Infrastructure & CDN
Global content delivery network (CDN) and cloud services provider that offers security, performance, and delivery solutions for digital content and applications.
Amazon Brand+
Programmatic Advertising / Brand Advertising
Companion to Performance+, launched globally 2025 at unBoxed. AI-driven brand-awareness campaign type within Amazon DSP.
Asatsu-DK
RebrandedAdvertising Agency
Asatsu-DK (ADK) was Japan's third-largest advertising agency after Dentsu and Hakuhodo. In January 2019 the group moved to a holding-company structure and the operating agency became ADK Marketing Solutions under ADK Holdings.
Authorized Buyers
Ad Exchange / Programmatic Marketplace
Google's ad exchange product within Google Ad Manager, formerly known as AdX (DoubleClick Ad Exchange). Renamed Authorized Buyers in 2018 as part of the DoubleClick → GAM consolidation. Central to the DOJ antitrust ruling: April 2025 Judge Brinkema decision found Google illegally monopolized this market (one of the two GAM markets where liability was established). Remedies trial ongoing 2025-2026; mid-2026 ruling expected. DOJ has sought divestiture of AdX.
BETC
Creative Advertising Agency
Paris-founded creative agency, Havas's French flagship. #1 in WARC Creative 100 2024.
Bleacher Report
Sports Digital Media/Publisher
A digital sports media brand owned by Warner Bros. Discovery, now part of Skydance, that delivers sports news, highlights, and original content primarily to millennial and Gen Z audiences through mobile and social platforms.
Cadence13
AcquiredPodcast Advertising & Audio Content
Cadence13 was a premium podcast network and advertising sales company that specialized in branded content and host-read advertising for podcasts.
Choreograph
Data Platforms / AdTech Infrastructure
Choreograph is WPP's data company — formed April 2021 from the merger of Wunderman Thompson Data + GroupM MPlatform. Provides audience data, identity, and analytics infrastructure across all WPP agencies. Now part of WPP Media (post-2025 GroupM rebrand).
CNN+
DefunctNews Streaming (defunct)
CNN+ was Warner Bros. Discovery's short-lived premium news streaming service. Launched March 29, 2022; shut down April 30, 2022 — just 33 days after launch. One of the most expensive failures in streaming history (~$300M write-off). Killed two weeks after the WBD merger closed.
Convertro
DefunctMarketing Attribution & Analytics
Convertro was a marketing attribution and analytics platform that helped advertisers measure cross-channel campaign performance before being acquired by AOL in 2014.
Craigslist
Craigslist is a centralized network of online communities featuring classified advertisements and forums on a variety of topics. It is one of the world's most visited websites, known for its simple interface and wide range of listings, from jobs and housing to items for sale and community events.
Daiko Advertising
AcquiredFull-Service Advertising Agency
Founded 1944 in Osaka, Daiko is the Kansai-rooted general agency arm of Hakuhodo DY Holdings, with ~1,500 employees focused on brand activation and regional/SME accounts. The "D" in "DY". Sources: HDYH Group Outline + HDYH History PDF.
Dynamic Yield
AcquiredPersonalization & Experience Optimization
Dynamic Yield is an AI-powered personalization platform that helps brands deliver individualized experiences across web, mobile, email, and other digital touchpoints — now operating as a subsidiary of Mastercard.
EDO
TV Advertising Measurement & Analytics
EDO is a TV advertising measurement and analytics platform that links linear and streaming TV ad exposure to consumer search behavior, helping brands optimize media spend for maximum engagement.
Emarsys
AcquiredMarketing Automation & Customer Engagement
Emarsys is an omnichannel customer engagement platform that enables personalized marketing automation across email, mobile, social, and web channels.
Exponea
AcquiredCustomer Data Platform (CDP) / Marketing Automation
Exponea was a AI-powered Customer Data Platform (CDP) and marketing automation solution acquired by Bloomreach in 2021, now operating as Bloomreach Engagement.