広告サービストップ企業
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WPP Plc (Ogilvy, Y&R, Grey)
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The Interpublic Group of Companies Inc. (McCann Worldgroup, MullenLowe U.S.)
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Omnicom Group Inc (BBDO, DDB Worldwide)
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Lamar Advertising Company (Lamar Media Corp.)
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Dentsu Aegis Network Ltd. (Dentsu Inc.)
*免責事項:上位企業は順不同
広告サービス市場集中度
広告サービス会社一覧
WPP Plc (Ogilvy, Y&R, Grey)
The Interpublic Group of Companies Inc. (McCann Worldgroup, MullenLowe U.S.)
Omnicom Group Inc (BBDO, DDB Worldwide)
Dentsu Aegis Network Ltd. (Dentsu Inc.)
MDC Partners Inc.
Lamar Advertising Company (Lamar Media Corp.)
Publicis Groupe SA
Wieden + Kennedy Inc
Havas SA
Droga5 LLC