Companies
3,695 companies in the AdTech ecosystem
Ipsos
Market Research & Audience Measurement
Ipsos is a global market research and consulting firm that provides AdTech solutions to help clients better understand and engage their target audiences.
iQIYI
Video Advertising & Streaming Media
iQIYI is China's leading online video streaming platform, often called the 'Netflix of China,' offering subscription-based and ad-supported content with a robust programmatic advertising ecosystem.
iQIYI Advertising
Video Advertising / Streaming Ad Platform
iQIYI Advertising is the digital advertising arm of China's leading online video platform, offering brands access to hundreds of millions of engaged streaming viewers through video, display, and programmatic ad solutions.
IQVIA
Healthcare Marketing Technology / Pharmaceutical AdTech
IRI
RebrandedData & Analytics / Market Research
IRI is a global leader in big data, predictive analytics, and forward-looking insights for CPG, retail, and media companies to drive growth and marketing effectiveness.
Iris Worldwide
Creative & Experience Network
London-born global creative-and-experience network valued at £80M when Cheil took an initial stake in 2014 with options to reach 100%. Operates across multiple continents focusing on participation-brand strategy, experiential, and content. Remains under Cheil ownership as of available reporting (the rumored 2024 divestiture is not corroborated in primary sources). Sources: Ad Age + Campaign UK.
IRIS.TV
Video Advertising Technology / Contextual Targeting
IRIS.TV is a video programming and personalization platform that uses contextual data to optimize video content recommendations and advertising. The company provides video intelligence solutions for publishers and streaming platforms to improve engagement and ad monetization.
ironSource
Mobile App Monetization & User Acquisition
A leading mobile app monetization and user acquisition platform that was acquired by Unity Technologies in 2022 for $4.4 billion.
ISBA
Advertising Industry Advocacy & Standards
UK trade body representing advertisers (Incorporated Society of British Advertisers).
Isobar
RebrandedDigital Agency / Marketing Services
Isobar was a global digital agency network known for commerce, experience design, and technology-driven marketing — rebranded into Dentsu Creative in June 2022.
Isobar Japan
RebrandedDigital Marketing & Creative Technology Agency
Isobar Japan is the Japanese arm of the global Isobar digital agency network, delivering integrated digital marketing, creative technology, and commerce solutions to major Japanese and multinational brands.
iSpionage
Competitive Intelligence & PPC Research
A competitive intelligence and PPC research platform that helps marketers analyze competitors' paid search campaigns, keywords, and ad copy.
iSpot.tv
TV Ad Measurement & Analytics
iSpot.tv is a TV ad measurement and analytics platform that provides real-time performance data and competitive intelligence for television advertising across linear and streaming.
iStock
Creative Content/Stock Media
iStock is a leading stock photography, illustration, and video marketplace offering affordable royalty-free creative content to businesses and creators worldwide.
Iterable
Marketing Automation / Customer Engagement Platform
Iterable is a leading customer engagement and marketing platform that helps brands create personalized, cross-channel experiences. Their platform allows companies to connect with customers across email, mobile, web, and more.
iubenda
Privacy Compliance / Consent Management
iubenda is a legal technology company that helps businesses comply with privacy and cookie laws. They provide a suite of tools and solutions for generating privacy policies, cookie banners, and consent management.
IXDS
MergedProduct Design / Innovation Agency
Berlin / Munich product design and innovation agency (~50 employees, BMW / Bosch / VW clients), acquired by PwC early 2020 (some sources say 2018, primary source confirms 2020). Folded into PwC Experience Center Germany. Sources: Consultancy.eu + ⚠ minor date inconsistency across secondary sources.
IZEA
Influencer Marketing Technology
IZEA is a pioneer in influencer marketing technology, connecting brands with creators through its SaaS platform and managed services to power authentic content and social sponsorships.
J. Walter Thompson
RebrandedCreative Advertising Agency
J. Walter Thompson (JWT) was one of the world's oldest and largest advertising agencies, renowned for iconic brand campaigns across the globe before merging with Wunderman in 2018 to form Wunderman Thompson.
Jack Morton Worldwide
AcquiredExperiential Marketing & Brand Experience
Jack Morton Worldwide is a global brand experience agency specializing in experiential marketing, live events, and immersive brand activations for major enterprise clients.
Jacques
Health & Pharma Marketing / Healthcare Communications
New global health agency network within the Havas Health Network, named after Jacques Séguéla. Focused on creativity and innovation in pharma communications. Created during the 2024-25 health-network restructuring.
Jahia
Digital Experience Platform
Jahia is a leading provider of a unified Digital Experience Platform (DXP) that helps organizations manage and deliver personalized digital experiences across multiple channels. Its platform combines content management, customer data, and marketing automation to empower businesses to create engaging customer journeys and optimize their digital presence.
Jam3
RebrandedCreative Technology & Digital Production
Toronto-based digital design and production studio that joined MediaMonks in March 2021 as part of the consolidation under the Media.Monks brand. Media.Monks rebranded to Monks in July 2024. Historical brand: search now resolves to Monks.
Jampp
AcquiredMobile Advertising / Programmatic DSP
Jampp is a programmatic advertising platform specializing in mobile user acquisition and app retargeting, leveraging machine learning to drive growth for app-based businesses.