This paper explores the complexities of involving partner organisations in co-generative learning processes within Action Research (AR) initiatives. Despite formal agreements, action researchers often face challenges in collaboratively addressing specific organisational issues through AR cycles. When action researchers adopt the “friendly outsider’ role, their initial task is to secure commitment to an AR initiative from senior leaders as sponsors. However, the existing literature lacks comprehensive guidance on facilitating this commitment. Therefore, drawing from both literature and empirical cases, this paper examines the pivotal role of the AR sponsor in securing funding and political backing, offering constructive critique, and facilitating learning. It provides insights into how action researchers can facilitate sponsors to enact these roles effectively so as to ensure the success and sustainability of organisational changes resulting from AR initiatives.