Certificate of Sponsorship (CoS) Status

Use this service to check the status of a Certificate of Sponsorship (CoS).
Enter the CoS number provided by your employer into the search box to verify whether the certificate exists in the official database.

The Certificate of Sponsorship is a unique reference number issued by a licensed UK employer. It is a required document for all Skilled Worker and other UK work visa applications.

⚠️ Without a valid CoS number, a work visa application cannot be submitted.