Advertising giant WPP on Thursday said its marketing communications network, Ogilvy & Mather, has acquired dnx, a UK-based B2B marketing agency.The agency will be merged with OgilvyOne's B2B division and Ogilvy Primary Contact, trading as OgilvyOne dnx. In the year ended June 30th 2013, dnx's revenues totalled £8.4m, with gross assets of £3.7m. The firm specialises in brand creation and development, with its client list including Axis and Vodafone. The share price inched 0.08% higher to 1,259p by 13:37.NR