In this public lecture, Professor Jennifer Clapp explores how growing corporate concentration has become a dominant trend in food systems. She highlights the complex and longstanding drivers of concentration across different parts of food systems, as well as the forms of power that concentration confers on dominant firms, enabling them to shape markets, policies, and material conditions in food systems. The lecture will also reflect on the kinds of policy responses required to address corporate power, and the prospects for the policy agenda in this current moment of geopolitical turmoil.