We present the design of an information system that supports the process of scaling-up of emergency response organizations. This process is vital for effective emergency response but tends to go awry in practice. Our proposed system consists of multiple distributed agents that are capable of exchanging organizational information. Each agent assists one part of the organization by visualizing the organization and allowing the user to update the information of its closest collaborators. When the agents communicate, they exchange and merge their organizational representations. The structure of other parts of the organization is updated indirectly through multiple interactions between different agents. We tailor our design to two specific procedures that are in common use today: the Coordinated Regional Incident Response Procedure (GRIP) that is applied in the Netherlands, and the Incident Command System (ICS) that is used in a number of areas in the United States of America.