Many services that we use daily, like healthcare, infrastructures, public transport, education, and others, are provided by the public sector. These services are provided using the project procurement process. In most cases, this process has a highly complex and dynamic interaction. It leads to issues, such as information asymmetry, over-specified tenders, not efficient feedback loops, etc. As a result, projects can rarely match to the objectives of organizations. This work explores the use of participatory simulation to help holistically investigate a project procurement process to incorporate better goals of organizations. Based on case studies from the Swedish road construction field, it can be concluded that participatory simulation is an effective approach to experiment with the effects of project procurement.