Wikipedia
NeoSpeech
NeoSpeech is a company that specializes in text-to-speech (TTS) software for embedded devices, mobile, desktop, and network/server applications. NeoSpeech was originally founded by two speech engineers in Fremont, California, in 2002. NeoSpeech is privately held, headquartered in Santa Clara, California.
Stephen Hawking is a well-known NeoSpeech TTS user. Adobe Systems has selected NeoSpeech Speech synthesis for their e-learning authoring suite Adobe Captivate.