Lindsey Clay

Lindsey Clay is best known as the chief executive of Thinkbox, the marketing body for commercial television in the UK, whose shareholders include Channel 4, ITV, Sky and UKTV. In this role she has been one of the most vocal and data-driven champions of TV advertising's effectiveness, commissioning and promoting landmark research into how television drives brand growth and return on investment. Clay joined Thinkbox in its early years and rose through the organisation before becoming CEO, giving her deep institutional knowledge of the UK TV advertising market. Under her leadership Thinkbox has produced influential studies in partnership with organisations such as the IPA and Ebiquity, and has consistently made the case for television's role in the broader media mix at a time of significant disruption from digital and streaming platforms. She is a regular presence at major industry events including Advertising Week Europe and the IPA's conferences, and is widely regarded as a standards-setter and thought leader on TV advertising effectiveness, audience measurement and the evolving relationship between linear and on-demand television.

Last updated Oct 26, 2026 by ATDb automated enrichment