WPP is the world's largest communications services group, with billings of $76 billion and revenues of $19 billion. Through its operating companies, the group provides a comprehensive range of advertising and marketing services, including advertising and media investment management; data investment management; public relations and public affairs; branding and identity; healthcare communications; direct, digital, promotion and relationship marketing and specialist communications. The company employs over 190,000 people (including associates and investments) in over 3,000 offices across 113 countries.