The register
The register lists Griffin Bank Ltd in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. The register records its rating as Worker (A rating).
At Companies House the business is Griffin Bank Ltd (company number 10842931), a private limited company incorporated in 2017, 9 years ago. Registered office: 9th Floor 107 Cheapside, London, EC2V 6DN, EC2V 6DN. By its SIC codes the business is in finance and insurance. It has traded under other names before, including Griffin Financial Technology Ltd..
Holding a licence is the expensive, slow part done. For Griffin Bank Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.