Mark Stein is a research associate at the University of Salford, UK, where he completed his PhD on sustainable food procurement. He has decades of experience working in municipal economic development, where he supported small business development, secured external funding, promoted e-commerce and developed sustainable procurement policies. Maurizio Mariani is the director of the international platform Eating City. He plays an active role in international research projects that aim to promote sustainable public food services. He has co-authored several books, such as La Ville Qui Mange (2013) and City Food Policies: Securing our daily bread in an Urbanizing World (2015). Roberto Caranta is a professor of administrative law at the University of Turin, Italy, and coordinator of Sustainability and Procurement in International, European, and National Systems (SAPIENS) International Training Network. He is the author and editor of numerous books, including European Public Procurement: Commentary to Directive 2014/24/EU (2021). Yiannis Polychronakis is the Head of Supply Chains, Procurement and Project Management in Salford University, UK. Yiannis is also an engineer with extensive industrial experience and has published his empirical work in numerous prestigious international journals and conference proceedings.