????–2008[]
2008–2021[]
2021–present[]
External links[]
| Current agencies: Ogilvy | AKQA Group (AKQA | Grey) | VML (Commerce) | Design Bridge and Partners | Landor (amp sound branding) | ManVsMachine | GroupM (Mindshare | MediaCom) | Bates CHI & Partners | Blue State Digital | Burson Cohn & Wolfe | Dewey Square Group | Essence Global | FGS Global | Grey Global Group | GTB | Hill & Knowlton | Hogarth Worldwide | Kantar Group | Wavemaker | Penn, Schoen & Berland | Quinn Gillespie & Associates | Scholz & Friends | Spafax | Sudler & Hennessey | TAXI | UWG | WPP-Scangroup | 24/7 Real Media | Coley Porter Bell Other: Former agencies:  |