Capability for strategic planning and decision-making toward sustainability requires both individuals and organizations from different sectors and disciplines to develop necessary skills and competencies. Therefore, a growing discussion has emerged within academia and practice around how pedagogical methods and tools can be utilized for this purpose. This paper seeks to contribute to this discussion by asking ‘in which way may group model building be used to foster learning that leads to competency for strategic sustainable development?’. The potential of the group model building (GMB) process’ steps and associated modeling to foster learning for strategic sustainable development (SSD) was analyzed using four case examples. Theory on learning for sustainability and key sustainability competencies were linked to elements of a process for strategic planning toward sustainability within the framework for strategic sustainable development (FSSD) as a reference model. The results provide a discussion on how GMB can be utilized to foster sustainability competencies and learning for sustainability that can contribute to SSD, hence a basis for continued research and ideas for course and curriculum development.