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The Ultimate List of Agency Holding Companies

The Ultimate List® of Agency Holding Companies provides a detailed overview of the seven major advertising holding companies—Omnicom, WPP, Publicis Groupe, Interpublic Group, Havas, Dentsu, and Stagwell—highlighting their revenues, locations, agencies, and subsidiaries to help users understand agency-brand relationships and leverage Winmo’s database for efficient prospecting and contact verification.

The List® of Agency Holding Companies: Omnicom, WPP, Publicis Groupe, IPG, Havas, Dentsu, and Stagwell

Navigating the advertising ecosystem is complicated. Agency holding companies expand and acquire entities at a rapid pace. If you’re targeting agencies, it’s important to know which house they’re under, which brand accounts they’re responsible for, and who the decision-makers are. Here’s a cheat sheet to understand the many agency/brand relationships, how advertisers place their ads, and the technologies they’re using. Winmo’s classic The List® database details all the major holding companies: Omnicom, WPP, Publicis Group, IPG, Havas, and Dentsu.

Major Agency Holding Companies

  1. 1.

    Omnicom

    • Omnicom Revenue
    • Omnicom Locations
    • Omnicom Agencies
    • Omnicom Subsidiaries
    • Omnicom Media Group
    • Omnicom Health Group
  2. 2.

    WPP

    • WPP Revenue
    • WPP Locations
    • WPP Agencies
    • WPP Subsidiaries
  3. 3.

    Publicis Groupe

    • Publicis Groupe Revenue
    • Publicis Groupe Locations
    • Publicis Groupe Agencies
    • Publicis Groupe Subsidiaries
  4. 4.

    Interpublic Group

    • IPC Revenue
    • IPC Locations
    • IPC Agencies
    • IPC Subsidiaries
  5. 5.

    Havas Group

    • Havas Revenue
    • Havas Locations
    • Havas Agencies
    • Havas Subsidiaries
  6. 6.

    Dentsu

    • Dentsu Revenue
    • Dentsu Locations
    • Dentsu Agencies
    • Dentsu Subsidiaries
  7. 7.

    Stagwell

    • Stagwell Revenue
    • Stagwell Locations
    • Stagwell Agencies
    • Stagwell Subsidiaries

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