NEW YORK: Omnicom Group's 2010 annual revenue from PR grew by 6.5% year-over-year, to $1.1 billion. In Q4, PR revenue was up 7.9% year-over-year, totaling $299 million. Organic PR revenue grew by 5.2% for the year and 7.1% for Q4, year-over-year. 

In 2010, PR accounted for 9.1% of Omnicom's total revenue, and it accounted for 8.3% of its Q4 revenue. The holding company's PR firms include Fleishman-Hillard, Ketchum, Porter Novelli, Brodeur Partners, and Cone.

For 2010, Omnicom reported a 7% increase ...