Group subscriptions are available on a customer-requested basis.
The main benefit of our group subscriptions is that it allows you to have a single username/password for a specified number of users (this is helpful for teams, companies, large groups, etc.). There is no real "discount" besides that.
The pricing is based on the number of "seats" (users) per login.
Here's how it works: all seats login with same username and password. If your group is five seats then five users can simultaneously use the account. If a sixth logs on then the oldest login would get logged off.
If you would like more information or to purchase a group subscription, please contact us at support@stathead.com.