Companies
4,156 companies in the AdTech ecosystem
GumGum
Contextual Advertising & Brand Safety
GumGum is a contextual intelligence company that positions itself as "The Mindset Company," building technology to help advertisers and publishers connect with audiences based on real-time receptivity rather than identity-based targeting.
Hakuhodo DY Media Partners
MergedMedia Buying & Planning
Hakuhodo DY Media Partners is an integrated media company formed by consolidating the media operations of three advertising agencies — Hakuhodo, Daiko, and YOMIKO — and operates as a subsidiary of Hakuhodo DY Holdings.
Hakuhodo DY ONE
Digital Marketing & Programmatic Advertising
Hakuhodo DY ONE is a Tokyo-based integrated digital marketing company that came into existence on April 1, 2024, when D.A.Consortium Inc. (DAC) and IREP Inc. were brought together under a single entity, serving as the digital core of the Hakuhodo DY Group.
Impact
Partnership Management / Affiliate Marketing Technology
Impact is a partnership technology platform that helps brands build and scale affiliate, creator, and performance-driven marketing programs.
LiveRail
DefunctVideo Advertising / Programmatic Ad Tech
LiveRail was a video advertising technology platform focused on helping publishers maximize revenue while offering advertisers high-quality, targeted inventory, and it has since shut down as a standalone entity.
Sprinklr
Customer Experience Management (CXM) / Social Media Management / MarTech
Sprinklr is an American software-as-a-service company specializing in customer experience management (CXM).
Telaria
RebrandedAd Technology — Supply-Side Platform (SSP) / Video & CTV Monetization
Telaria, now operating as Magnite, was a fully programmatic, sell-side software platform specializing in premium video and connected TV/OTT monetization, formerly known as Tremor Video.
TripleLift
AcquiredProgrammatic Advertising / Native Advertising
TripleLift operates under a majority investment from Vista Equity Partners, a global investment firm focused on enterprise software, data, and technology-enabled businesses, which partnered with the company to drive further innovation and accelerate global growth.
UM (Universal McCann)
Media Buying & Planning
UM operates as a borderless global media agency network across 100+ markets and 120+ offices, with more than 3,000 employees worldwide.
Vistar Media
AcquiredProgrammatic Advertising / Digital Out-of-Home (DOOH)
Vistar Media is a global ad tech company and the world's largest digital out-of-home (DOOH) advertising marketplace, offering technology designed to make buying and selling OOH media easier.
Vungle
RebrandedMobile Advertising
Vungle, now operating as Liftoff following a 2021 merger, was a mobile advertising and monetization company that served primarily the supply side of the ecosystem, providing more than 100,000 mobile app developers and publishers with tools to monetize their apps, alongside an influencer marketing platform connecting brands with thousands of content creators.
AdExchanger
Trade Media / AdTech & MarTech Publishing
AdExchanger is an integrated media and events company that has covered programmatic advertising and the data-driven marketing technology ecosystem since 2008.
Awin
Co-ownedAffiliate & Partner Marketing
Awin is a marketing technology platform that provides an open marketplace enabling businesses to form a wide variety of acquisition partnerships.
Datorama
RebrandedMarketing Analytics & Intelligence
Datorama was a data analytics tool built with digital marketers and marketing agencies in mind, acquired by Salesforce in 2018 and now operating as Marketing Cloud Intelligence.
Initiative
Media Planning & Buying
Initiative is an American media planning and buying agency that operates as part of IPG Mediabrands, the media division of the multinational holding company Interpublic Group of Companies.
Interpublic Group
MergedAdvertising & Marketing Services
Interpublic Group (IPG) was an American advertising and marketing services company headquartered in New York City, which was acquired by and folded into Omnicom Group in 2025.
Meltwater
Media Intelligence & Social Analytics
Meltwater is an online media, social, and consumer intelligence company founded in Oslo, Norway, and headquartered in San Francisco, California.
Merkle
AcquiredData-Driven Marketing Services & Technology
Merkle is a business, technology, and marketing services consultancy founded in data science and digital business performance, operating as part of the Dentsu network.
Paramount+
Streaming Media & Connected TV Advertising
Paramount+ is a streaming service owned by Paramount, a Skydance Corporation, offering a broad content library drawn from brands including BET, CBS, CBS Sports, CMT, Comedy Central, MTV, Nickelodeon, Paramount Pictures, and Showtime.
Peacock Ads
Streaming TV Advertising / Connected TV (CTV)
Peacock Ads sells video ads on the ad-supported tiers of NBCUniversal's Peacock streaming service, along with formats that don't interrupt playback, such as pause ads, and shoppable ads.
Quotient Technology
RebrandedRetail Media & Digital Promotions
Quotient Technology, now operating as Neptune Retail Solutions, was an advertising technology company that specialized in digital promotions, retail media, digital out-of-home advertising, social influencer marketing, display advertising, and data and analytics.
R/GA
AcquiredDigital Marketing & Innovation Consultancy
R/GA is a New York City-based advertising and creative technology company with teams operating across ten countries, which became an independent, privately held agency in 2025 after more than two decades under Interpublic Group, with private equity firm Truelink Capital as its new owner.
SendGrid
AcquiredEmail Delivery & Marketing Technology
SendGrid is a cloud-based email marketing and transactional email platform, now operating as part of Twilio, that helps businesses and developers send, receive, and manage emails at scale.
Sharethrough
RebrandedProgrammatic Advertising / Native Ad Exchange
Sharethrough, now operating as Equativ following a merger announced in June 2024, was one of the top independent omnichannel ad exchanges.