The register
The register lists O'Neill Engineering Consultancy Limited in High Wycombe, 19/07729/FUL 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 O'neill Engineering Consultancy Limited (company number 10276021), a private limited company incorporated in 2016, 10 years ago. Registered office: Bassetsbury Barn, Bassetsbury Lane, High Wycombe, HP11 1QX, HP11 1QX. By its SIC codes the business is 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.