Also see this site's other Business Index
List of Interactive TV Email and Interactive TV Browser Businesses
To find out more about an entity's involvement with interactive television, type both their name and "interactive television" in a search engine.
Eyejot - Video email.
Navio Navigator (Formerly a browser for use in the non-PC world)
Origyn Web Browser (OWB) - Based on Apple’s Webkit and is particularly designed for TV sets, TV decoders and other consumer electronic devices.
Pocket Internet Explorer (Microsoft's Windows CE browser)
tmira solutions - tmPlayer
ZeeVee - Web TV Browser.