The Tier 5 visa route is for overseas (non-EEA) students, volunteers and apprentices looking to come into the UK on a traineeship or as a volunteer on the basis of the European Voluntary Service scheme. Importantly, companies looking to take on overseas workers on the Tier 5 immigration category must have duly obtained a sponsorship licence from the UKVI.
In order to be eligible for a sponsorship licence, the applying organisation must meet the following requirements.
It is important to note that having a sponsor licence does not mean that any employee you choose to sponsor with you licence will automatically obtain leave to remain in the UK. They will have to meet their own visa requirements in reference to their leave to remain and status. Sponsor licences are not connected to any employee, but issued to and for the company.
For in-country applications, the Certificate of Sponsorship (CoS) is usually granted (or otherwise) within the application, however, for out of country applications, you will need to apply for a restricted CoS separately. After a CoS has been assigned, the employee can then apply for the Tier 5 visa; which will be granted on its own rights (not withstanding a successful CoS)