A company will be able to log into the Member Website exactly the same as a member would however their home page will be slightly different in what details are seen.

As you can see from the image below, the first home page is for a member, the one alongside it is for a company.
The difference being is a company has the details for their two referents, whereas a member will have the second contact details and the names of their children.

Another difference is the ability to edit the information. At the moment, if your toy library has activated the setting, a member can edit their information. A company is unable to do that however this will soon be possible when Version 2 of the module is available.