The register
The register lists Seattle Software t/a Orbus Software in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Its rating on the register is Worker (A rating).
Seattle Software Ltd. is the registered name (Companies House number 05196435), a private limited company on the register since 2004. Registered office: 123 Victoria Street, 11th Floor, London, SW1E 6DE, SW1E 6DE. Its filed activity puts it in it, software and media. It has traded under other names before, including Gordons69 Limited.
A licence says an organisation may sponsor; it does not say it is hiring today. The way to find out is the same as for any employer: the careers page, the job boards, and a direct approach with a UK-style CV that says early that sponsorship would be needed.