The register
The register lists CR Clean Limited in Slough as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
At Companies House the business is CR Clean Limited (company number 12234010), a private limited company incorporated in 2019, 7 years ago. The registered office is at 75 Leicester Road, Luton, LU4 8SG, LU4 8SG. Its filed activity puts it in security, cleaning and facilities.
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.