The top 10 firms reported combined midyear revenue of $126.7 billion, down from $127.1 billion during the first half of 2010. While that represents only a 0.3 percent drop as a group, most lobbying shops saw revenue drop between 1 percent and 14 percent, according to Capital Business estimates based on Lobby Disclosure Act forms filed with the Senate. There were three exceptions: Patton Boggs (up 19.8 percent), Ogilvy Government Relations (up 7 percent) and Williams & Jensen (up 2.8 percent).