We have had many calls regarding the entry of Group Organization details and I think it could be made simpler. In most cases, the person entering the registration information (where a group is concerned) is also an attendee. People are getting confused (OK - so they don't read the screen headings!) because they believe they are registering themselves twice when they enter their details and the organizer details.
May I suggest that for any group registration, a single registration can be nominated as an"organizer" as the details are being entered and if this is selected any additional fields open up such as Company etc.
At the end of the Group registration, if have not nominated an organizer they are presented with an organizer screen. Here, they can can pick 1 from their group and add the additional organizer details or enter the group administrator details with a clear note that this is not an individual registration.