The register
The register lists RMR Partnership LLP in Harrow 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).
Rmr Partnership LLP is the registered name (Companies House number OC386318), a limited liability partnership on the register since 2013. The registered office is at Vyman House, 104 College Road, Harrow, Middlesex, HA1 1BQ, HA1 1BQ.
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.