EXHIBIT 21

SUBSIDIARIES OF REGISTRANT

Significant Subsidiaries
CompanyJurisdiction of
Incorporation
Percentage of Voting
Securities Owned
by Registrant
Number
of US
subsidiaries
Number
of Non-US
subsidiaries
Omnicom APIMA Holdings LimitedHong Kong100%64
Omnicom Capital Inc.Connecticut100%15
Omnicom Europe LimitedUnited Kingdom100%4434
Omnicom Finance Holdings plcUnited Kingdom100%2
Omnicom Capital Holdings plcUnited Kingdom100%14
Omnicom Group (Asia Pacific) Pte. Ltd.Singapore100%33
BBDO Worldwide Inc.New York100%24149
DDB Worldwide Communications Group LLCNew York100%933
TBWA Worldwide Inc.New York100%517
DAS Holdings Inc.Delaware100%528
Omnicom Media Group Holdings Inc.Delaware100%227