The document proposes a method called PiE (Processes in Events) to identify interconnections between business processes of different organizations in an Internet of Things environment. PiE merges unstructured IoT data with structured process monitoring data to find temporal and content-based relationships. It was tested on a simulated assisted living scenario and discovered relationships between activities of a social care organization and a health care organization with high confidence. Future work will validate PiE in real case studies and apply it to other domains involving interacting processes and IoT devices.