It is possible to enable Workers from multiple Employers to sign in on the same permit.
There would still need to be a main Employer applying and managing the permit form, but this functionality enables users to have workers from multiple companies record their works on the same page.
To enable this functionality, please contact support@hammertech.com.au or your Customer Success Representative (note: you must be an admin user to request this change).
Please note that this change is system-wide, and cannot be made for specific projects or regions.
Once this setting is enabled, you need to Allow Sign In and Sign Out in Permit Types settings.