The register
The register lists Satellite Applications Catapult in Harwell, Oxfordshire as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as Satellite Applications Catapult Limited, number 07964746, incorporated 2012: 14 years of filings behind the name. The registered office is at Quad 3 Rutherford Avenue, Harwell Science & Innovation Campus, OX11 0DF, OX11 0DF. Its filed activity puts it in professional and technical services.
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.