Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.
VoiceAttack - VoiceAttack will take commands that you speak into your microphone
Pullstring - Powering computer conversation across all platforms.
VoiceMacro - Control applications or games by voice commands and/or by the press of a keyboard, mouse button or...
ChatterOn for Messenger - Build Facebook chat-bots in under 5 minutes
SpeechTurtle - SpeechTurtle is a voice recognition tool that has a simplified c# scripting interface.