Now you understand the different roles members of your company can have, it's time to start inviting the rest of your team on board.
Click on the "Users" option in the left hand navigation area. In here you will see your own name as you are the sole Administrator for the company at the moment. Depending on whether you want to invite other Administrators or Users, click on the "Invite" button in the relevant section and enter the email address of the invitee.
When they accept your invitation and create their own accounts, the names of the people you invited will appear in this area of Kulla.
As an Administrator you can change somebody's role from User to Administrator and vice versa, and also remove them from your company as well (this doesn't delete their account - it just means that when they log in they can't see any of your company information).