Actually the domains in question are through DirectNic which they do list on their page, but don't say they're a part of their company.
As far as hosting goes, I go through
http://www.advancedhosters.com
Other than that, I see no connection to me. One thing though, they did list all of the domains that I have listed through DirectNic, including ones that I'm not using.
I don't see how they can try to police my sites like that.