GroupM is a privately owned, U.S.-based company founded in 2003, with approximately 16,770 employees. The company functions as a media investment group within the multinational holding company WPP plc, specializing in advertising services.
WPP Media recently strengthened its leadership team on June 25, 2026, appointing Kartik Lakshmanan as Group Head – Reservation Buying to lead operations across multiple client accounts and media channels, enhance campaign performance, and improve operational efficiency. On the same day, WPP Media partnered with EE and Digital Cinema Media (DCM) for a cinema activation inspired by the release of Disney and Pixar’s Toy Story 5. Previously, on June 24, WPP Media renewed its integrated media mandate with Mother Dairy Fruit & Vegetable Pvt. Ltd., extending a partnership that has delivered consistent growth. Also on June 24, WPP Media's Alin Popescu contributed insights on the evolving impact of artificial intelligence on retail media in a column discussing how the ecosystem needs to adapt to AI's reshaping of planning, selling, and buying.
GroupM's customers primarily consist of RTB and programmatic and media and TV services companies. Examples of GroupM's customers include Criteo and iWant. Examples of GroupM's suppliers include Magnite, Rakuten TV Enterprise and PubMatic.
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