Media Relations WPP and Interpublic Group report revenue growth in Q1 Good news for these giant holding companies. By Michael SebastianApril 29, 2011 SHARE WPP reported revenue of £2.2 billion (or about $3.6 billion), representing a 7 percent boost from the same time last year. The company—which includes Ogilvy PR, Burson-Marsteller, and Hill & Knowlton—said its PR revenues increased by 5.6 percent. To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.