Companies

McCann Health is a global healthcare communications and marketing agency network, delivering integrated creative, medical education, and digital health solutions to pharmaceutical and life sciences clients.

McCann Worldgroup Japan is the Tokyo-based arm of the global McCann Worldgroup network, delivering integrated creative, media, and marketing communications services to major brands across Japan.

Dentsu's creative advertising agency, retired in 2022 when consolidated into Dentsu Creative.

US creative agency based in Durham, NC, acquired by Cheil Worldwide in 2012 for an estimated $50M after a period of management-led independence. Operates as Cheil's US flagship; expanded materially in 2023 via the acquisition of influencer-marketing agency August United. Best known for brand-building work for clients including Samsung, Sherwin-Williams, and Travelers. Sources: Adweek + WRAL TechWire + PRNewswire.

McKinsey is a leading global management consulting firm that has expanded into the AdTech Platform space, providing data-driven solutions to help clients optimize their digital advertising and marketing efforts.

Canadian-American marketing holding company (1980-2021); merged into Stagwell August 23, 2021. Ticker MDCA delisted; combined entity took the Stagwell name. Owned Crispin Porter + Bogusky, Anomaly, 72andSunny, Doner, Forsman & Bodenfors, and others.

A measurement and analytics platform that quantifies the incremental impact of advertising across linear TV, streaming, and digital channels.

Measurely is a marketing technology and product analytics platform specializing in A/B testing, multivariate experimentation, and comprehensive user behavior tracking. The company serves as a critical bridge between raw data collection and actionable business intelligence, enabling product teams, marketers, and growth professionals to optimize digital experiences and maximize conversion rates. Measurely's core value proposition centers on making sophisticated experimentation accessible to org...

Medallia is an enterprise experience management platform that captures and analyzes customer, employee, and digital experience signals to drive business improvements.

MedData Group is a specialized healthcare data and marketing solutions provider serving the pharmaceutical and life sciences industries. The company operates at the intersection of healthcare data intelligence and marketing technology, enabling pharmaceutical companies, medical device manufacturers, and life sciences organizations to effectively communicate with healthcare professionals (HCPs) and patient populations. Through comprehensive data solutions and multichannel marketing capabilitie...

Independent media-planning and buying agency launched January 2021 in New York by Mother, with London office added later. Operates independently from Mother's creative practice. CEO David Gaines (ex-WPP). Sources: Adweek (launch coverage) + Digiday ("Why Mother is getting into the media business").

Media.Monks is a global digital transformation and marketing services company specializing in creative production, technology, and media services for brands.

A contextual advertising platform specializing in search-powered ad solutions, operating as a subsidiary of a Chinese consortium since 2016.

MediaAlpha is a programmatic advertising platform specializing in the insurance vertical, connecting carriers and agents with high-intent consumers through data-driven customer acquisition.

MediaBank was a leading media management and financial software provider for advertisers and agencies that merged with Donovan Data Systems in 2012 to form Mediaocean.

Mediacom is a global media agency network and subsidiary of GroupM, specializing in media planning, buying, and performance optimization across all channels.

Mediafly is a leading sales enablement and content management platform that empowers B2B companies to deliver personalized, interactive content experiences to buyers. Its platform helps improve sales productivity, buyer engagement, and revenue growth through advanced content tools and analytics.

Programmatic DSP specializing in performance marketing and user acquisition, particularly strong in mobile and app install campaigns. Offers AI-driven optimization for advertisers.

Indie-spirited media agency; spun out of Mullen 2005, joined IPG Mediabrands 2023, survives under Omnicom Media post-merger. Smaller than UM/Initiative; specialty: founder-driven brands and creator-economy media.

Mediahuis is a major European media and publishing group operating premium news brands across Belgium, the Netherlands, Ireland, and Luxembourg, monetizing substantial digital and print advertising inventory. The company has invested heavily in first-party data infrastructure and digital advertising capabilities to compete in the evolving publisher monetization landscape. Mediahuis represents a significant European publisher ad inventory source for programmatic buyers.

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

MediaLink is a strategic advisory and business development firm that serves as a connective tissue between brands, agencies, media companies, and technology platforms across the marketing and media ecosystem.

MediaMath was a pioneering demand-side platform (DSP) and programmatic advertising technology company that shut down operations in June 2023 after failing to secure new financing.

Mediamelon provides AI-powered video streaming analytics and optimization solutions, helping media companies and broadcasters maximize streaming quality and monetization.