Advertising Services Companies in United States

Confidential

10734 employees

Ogilvy

11519 employees

WPP Media

29035 employees

GroupM

12695 employees

Leo Burnett

7324 employees

Private Company

113019 employees

Dentsu Creative

6349 employees

McCann Worldgroup

7398 employees

Epsilon

11025 employees

IPG Mediabrands

8439 employees

Havas Media Network

6414 employees

Grey

3422 employees

DDB

7400 employees

R/GA

2485 employees

Aleph Group, Inc

1979 employees

Starcom

6056 employees

MRM

3213 employees

Digitas North America

2838 employees

Razorfish

1834 employees

Interpublic Group (IPG)

9443 employees

Droga5

559 employees

Content Marketing Institute

440 employees

Initiative

3180 employees

Omnicom

2070 employees