Table : TABLE 12.1 THE TOP 10 PUBLIC RELATIONS FIRMS, 2013 (BY WORLDWIDE REVENUE, IN MILLIONS OF U.S. DOLLARS)Data from: “CRM/Direct and PR,” Advertising Age, April 28, 2014, p. 31.
| Rank | Agency | Parent Firm | Headquarters | Revenue |
| 1 | Edelman | Independent | New York/Chicago | $741 |
| 2 | Weber Shandwick | Interpublic | New York | $567 |
| 3 | Fleishman-Hillard | Omnicom | St. Louis | $551 |
| 4 | MSL Group | Publicis | Paris | $501 |
| 5 | Burson-Marsteller | WPP | New York | $466 |
| 6 | Ketchum | Omnicom | New York | $464 |
| 7 | Hill+Knowlton Strategies | WPP | New York | $390 |
| 8 | Ogilvy Public Relations | WPP | New York | $296 |
| 9 | BlueDigital | BlueFocus Communication Group | Beijing | $271 |
| 10 | Brunswick Group | Independent | London | $231 |