There are a few other manufacturers which are not as popular. I shall not be adding much detail as personally I’ve never owned any of these radios as I’ve always tried to stay with more popular manufacturers/models as it’s easier to get support.
There may be more out there – send me a note via the “Feedback” menu should you know and I can add them to this list.
BFDX – Also sold by CSi USA – http://www.connectsystems.com/amateur.html
Kirisun – http://en.kirisun.com/
Vertex Standard – http://www.vertex-standard-emea.com/digital_radios.html