I have tried contacting classroom revolution with some shared hosting questions but have gotten zero response. Who are some other companies that do shared moodle hosting?
Remote Learner is a Moodle host that has a shared hosting option. Also many low cost hosting providers allow you to install Moodle (but they lack the expertise of an official Moodle Partner).
I am not good in advising but I think there are only limited options that moodle offers, There are some websites like moodle, but not offering a service like moodle does.