GroupM media investment management services

GroupM is the world's leading media investment group responsible for more than one in three of the globe's advertising media billings. Formed in 2003 by WPP plc to serve as the overarching parent company for WPP's media agencies—including Mindshare, Wavemaker, EssenceMediacom, and mSix&Partners—GroupM consolidates buying power, data, and technology across worldwide advertising operations.

Because GroupM provides advertising management, media planning, buying, and digital marketing services rather than physical manufactured goods, its operations span global hubs across the Americas, EMEA, and Asia-Pacific. Operational services and media execution are localized in over 80 countries worldwide.

The ultimate owner of GroupM is WPP plc, a major global multinational communications, advertising, technology, and public relations company headquartered on Sea Containers House in London, United Kingdom.