This Data-sharing SME, Last-Mile Delivery LivingLab focuses on the last-mile (LM) transport setting. The LivingLab involves actors such as last-mile couriers, traditional delivery companies, retailers, and terminal companies. The LivingLab is one of 23 under the EU project FEDeRATED (www.federatedplatforms.eu), which aims to foster and achieve digital co-operation in logistics. Stakeholder engagement is required to achieve open data sharing in the interests of improving the operational efficiency of delivery. This LivingLab identifies that the last-mile couriers dispute the benefits of data sharing, while being pushed towards data sharing by (environmental) regulations and other market forces. However, and somewhat in contradiction, a considerable number of the couriers voluntarily associate themselves with a semi-Federated system of open and neutral data sharinginfrastructure. The financial gains for these couriers have been substantial.