NEW YORK, Feb. 12, 2013 /PRNewswire/ -- The Board of Directors of Omnicom Group Inc. (NYSE: OMC) today increased the corporation's quarterly cash dividend by 33 percent, raising it from 30 cents to 40 cents per outstanding share of the corporation's common stock. The dividend is payable on April 2, 2013 to Omnicom Group common shareholders of record at the close of business on March 5, 2013. About Omnicom Group Inc.Omnicom Group Inc. (NYSE: OMC) ( www.omnicomgroup.com) is a leading global marketing and corporate communications company. Omnicom's branded networks and numerous specialty firms provide advertising, strategic media planning and buying, digital and interactive marketing, direct and promotional marketing, public relations and other specialty communications services to over 5,000 clients in more than 100 countries. SOURCE Omnicom Group Inc.