Far as I know all those brands are made by the same guy in China,
Deng, which also includes Adament. You'll find a lot of the minor components are all the same base design just rebranded such as their hubs.
You might sometimes hear references to Deng-ness, which is reference to parts coming from those brands.
It's just typical marketing providing the illusion of "choice" in brands, but all owned by the same parent company.