Information as to the location of mobile workers plays a central role in tracking and co-ordinating teams in mobile business processes. This paper describes a multi-agent architecture for location based workflow management and team co-ordination. The architecture is based on reusable components that facilitate multi-agent interactions to produce services for locating and co-ordinating members of mobile teams and can be used as a generic approach, which is customised to support various kinds of mobile business processes. The details on the components and architecture for multi-agent systems are given and details of a case study, where an application based on the architecture was applied to a real mobile business process, are included to show its usefulness.