Nicola Mendelsohn

Nicola Mendelsohn is one of the most consequential figures in global digital advertising, serving as Head of the Global Business Group at Meta, where she leads the company's relationships with the world's largest advertisers, agencies, and marketing partners across Facebook, Instagram, WhatsApp, and Messenger. In this role she has been a central architect of Meta's commercial advertising strategy, championing AI-driven ad products, performance measurement solutions, and the platform's evolution toward Reels and short-form video monetization. Her influence spans both the strategic and evangelical dimensions of AdTech — she is as comfortable on a Cannes Lions stage as she is in boardroom negotiations with global holding companies. Before joining Facebook in 2013, Mendelsohn built a distinguished career in the UK advertising industry spanning more than two decades. She served as Executive Chairman of Karmarama, one of the UK's most respected independent creative agencies, and held senior roles at Grey London and Bartle Bogle Hegarty. Her deep creative agency background gives her a rare dual fluency in both brand marketing and platform technology, making her an unusually effective bridge between Meta and the traditional advertising establishment. Beyond her commercial role, Mendelsohn has become a prominent voice on diversity and inclusion in technology and business leadership, and has spoken openly about her diagnosis with follicular lymphoma, using her platform to raise awareness about cancer research and the importance of resilience. She has been named among the most powerful women in UK business by multiple publications and holds a CBE for services to the creative industries. She is a frequent keynote speaker at major industry events including Cannes Lions, Advertising Week, and the World Economic Forum.

Last updated Jun 6, 2026 by the ATDb Editorial Team