The register
Mercer & Hole, Rickmansworth, Herts, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as Mercer & Hole LLP, number OC441974, incorporated 2022: 4 years of filings behind the name. Registered office: Gloucester House, 72 London Road, St. Albans, Hertfordshire, AL1 1NS, AL1 1NS.
Holding a licence is the expensive, slow part done. For Mercer & Hole the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.