In Talenox, you can assign users to multiple companies. However, we have not created an easy way you can do it through our self-serve platform. In the meanwhile, please contact us at firstname.lastname@example.org to assign users to multiple companies.
We apologise for any inconvenience caused and we are in the midst of getting this function up.
Aside from updating user account email, you can refer to the following slide to understand more about user management in Talenox and view the following articles to guide you along.
(feel free to maximise it to have a clearer view)