The Top 5 Holding Companies

These are the current 5 largest full service advertising and marketing services groups, each with multiple subsidiary companies underneath it. This list does not include all of the agencies and media networks under each holding company, but it does include some significant names in media.

1. WPP, London, $19 billion yearly revenue
2. Omnicom Group, New York City, $15.3 billion yearly revenue
3. Publicis Groupe, Paris, $9.6 billion yearly revenue
4. Interpublic, New York City, $7.5 billion yearly revenue
5. Dentsu, Tokyo, $6.0 billion yearly revenue

WPP

Notable Agencies

• J Walter Thompson
• Ogilvy & Mather
• Young & Rubicam
• Grey
• Y&R

Media Networks (Under umbrella of GroupM)

• Mindshare
• Mediacom
• Wavemaker (Result from merger of Maxus and MEC Global)

Omnicom Group

Notable Agencies

• BBDO
• DDB
• TBWA

Media Networks

• OMD Worldwide
• PHD
• Hearts and Science

Publicis Groupe

Notable Agencies

• Publicis Wordwide
• Saatchi and Saatchi
• Leo Burnett
• Sapient Razorfish
• Digitas
• Bartle Bogle Hegarty

Media Networks

• Starcom
• Zenith Optimedia
• Spark Foundry
• Blue 449

Interpublic Group

Notable Agencies

• Foote, Cone, and Bedding (FCB)
• MullenLowe Group
• McCann Erickson

Media Networks (Under umbrella of IPG Mediabrands)

• Initiative
• Universal McCann (UM)
• Cadreon
• BPN

Dentsu

Notable Agencies

• McGarry Bowen
• Hakuhodo
• Dentsu

Media Networks

• Carat (subsidiary of Aegis Group)
• Vizeum (subsidiary of Aegis Group)
• Dentsu X

Sources

• https://www.adbrands.net/agencies-index.htm
• https://www.adbrands.net/advertising-industry-structure.htm

Marketing is an investment, not a cost.

— Martin Sorrell