WPP plc is engaged the provision of communications services on a national, multinational and global basis. Its segments include: Advertising and Media Investment Management; where it operates advertising networks Ogilvy & Mather Advertising, JWT, Y&R, Grey, bates and the United Network, as well as Media Investment Management companies, such as MediaCom, MEC, Mindshare, Maxus and tenthavenue; Consumer Insight, where its operations are conducted through Kantar; Public Relations & Public Affairs, where it operates through companies, such as Burson-Marsteller, Cohn & Wolfe, Hill & Knowlton and Ogilvy Public Relations, and Branding & Identity, Healthcare and Specialist Communications. where its operations are conducted by B to D Group, ghg, Wunderman, Sudler & Hennessey, OgilvyOne Worldwide, Ogilvy CommonHealth Worldwide, G2, OgilvyAction, 24/7 Media and other companies. Effective March 4, 2013, it acquired john st. In May 2013, it announced that Y&R Advertising opened Y&R Yangon.