Pincott will report directly to Eileen Campbell, chief executive of the Millward Brown Group, and will take a seat on the global management board.
Global Solutions will support the WPP-owned Millward Brown's client teams to ensure that the advice delivered to businesses is grounded in an understanding of how successful brands are built.
Prior to joining Millward Brown, Pincott worked as board director at Saatchi & Saatchi and on the client side at Brooke Bond Oxo before it was acquired by Unilever.
Campbell said: "Gordon is a consummate professional and a real global citizen within Millward Brown. He brings a wealth of experience and creativity to this role as well as a deep understanding of our clients' needs gained in his nearly 20 years as one of our leading consultants."