The register
The register lists Stillwater Associates Ltd in Reigate 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).
At Companies House the business is Stillwater Associates Limited (company number 06713397), a private limited company incorporated in 2008, 18 years ago. The registered office is at Chapter House, 33 London Road, Reigate, RH2 9HZ, RH2 9HZ. Its filed activity puts it in professional and technical services. It has traded under other names before, including Reservoir Safety 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.