Deepgram - Search engine for speech

VoiceAttack - VoiceAttack will take commands that you speak into your microphone

Yack.net - Recorded and transcribed calls for team collaboration

VoiceMacro - Control applications or games by voice commands and/or by the press of a keyboard, mouse button or...

Jasper - Jasper is an open source platform for developing always-on, voice-controlled applications.

Braina - Braina (Brain Artificial) is an intelligent personal assistant software for Windows OS that allows you to interact with your computer using voice commands.