FHEM - FHEM (TM) is a GPL'd perl server for house automation.
232key - Transforms data received via RS-232 into keystrokes. Make your serial device talk to any program!
Conrad Connect - Service for managing smart home devices
WinWedge - Data collection software for serial devices, including meters, balances, scales or any RS232...
pimatic - Home automation framework that runs on node.js.
Bold BI - Bring the power of analytics to the end users embedded as part of their business applications.