WPP plc (WPP) is a holding company engaged in providing communications services. The Company operates through four segments: Advertising and Media Investment Management; Data Investment Management; Public Relations & Public Affairs, and Branding & Identity, Healthcare and Specialist Communications (including direct, digital, promotion and relationship marketing). Its Advertising and Media Investment Management segment operates advertising networks, such as Ogilvy & Mather Advertising, Y&R, Grey and Bates CHI&Partners, as well as media investment management companies, such as MediaCom, MEC and tenthavenue. Its Data Investment Management segment's operations are conducted through Kantar. Its Public Relations & Public Affairs segment operates through companies, such as Burson-Marsteller and Ogilvy Public Relations. WPP's Branding & Identity, Healthcare and Specialist Communications segment's operations are conducted by B to D Group, ghg, OgilvyOne Worldwide and other companies.