There are more ways how to ensure that the specific users are allocated to your account so you can activate their license and see their results.
1. Custom URL - Everybody registering via your custom URL will be added to your company account. This can be configured in your admin settings.
2. Domain allocation- Everybody registering with the specific e-mail address (e.g. your domain @yourcompany.com) will be added to your account. This can be configured by TrackTest upon request.
3. Voucher- Everybody submitting a voucher from your account will be transferred to your organization.
You can use one or a combination of the above methods.