If your company or organization already has a Package Zen account, you won't need to sign up for one. Instead, you'll need to be added as a Person to Package Zen.
Only Package Zen Property Managers and Organization Admins can add People to Package Zen. You'll need to find out who the Property Manager or Organization Admin is at your company and have them add you as a Person.
Property Managers and Organization Admins can click here for a refresher on how to add People to Package Zen.