This thesis introduces a way of combining any number of location providers into one centralized location provider. By using the input of multiple location sources the accuracy of every single source can be improved and the availability of location information can be increased. Simple scenarios where two sources’ location information overlaps will be addressed as well as more complex ways of combining the information. The system introduced is flexible and extensible in terms of fusion algorithms or sources used. It’s ability to provide indoor location information more accurately and with higher availability makes it a better alternative to existing location based services.