AdAge has put together a list of the Top 10 Largest Agency Networks in 2004. Check out the list below.
1

Parent: Interpublic Group of CosNumber of Accounts: 61Total Assignments: 1,295
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2

Parent: WPP GroupNumber of Accounts: 54Total Assignments: 1,095
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3

Parent: WPP GroupNumber of Accounts: 44Total Assignments: 614
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4

Parent: HavasNumber of Accounts: 40Total Assignments: 928
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5

Parent: Publicis GroupeNumber of Accounts: 33Total Assignments: 521
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6

Parent: Omnicom GroupNumber of Accounts: 32Total Assignments: 583
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7

Parent: Publicis GroupeNumber of Accounts: 28Total Assignments: 741
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8

Parent: WPP GroupNumber of Accounts: 28Total Assignments: 730
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9

Parent: WPP GroupNumber of Accounts: 24Total Assignments: 525
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10

Parent: Interpublic Group of CosNumber of Accounts: 18Total Assignments: 426
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