The multi-contingency model frames organizational design as a continuous executive task shaped by globalization, digitalization, AI, sustainability, and shifting societal expectations. It identifies nine interdependent components – goals and scope, strategy, environment, configuration, leadership, climate, task design and agents, coordination and control, and incentives and people – whose alignment drives performance. Extending traditional contingency theory, it integrates insights from economics, information processing, and organizational theory, viewing organizations as systems that manage complexity by balancing information-processing demand and capacity. This can mean reducing demand (e.g., modularization, predictive tools) or increasing capacity (e.g., AI, lateral communication, skilled talent). Examples from Microsoft, Aarhus University, Danish healthcare, Uber, and luxury fashion brands show how design adapts to digital innovation, sustainability, and agility. A seven-step method supports the model: getting started, strategic positioning, structuring, defining agents and leadership dynamics, setting coordination and incentives, finalizing architecture, and implementing change.