The register
N21, Newcastle, Select One, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as N21 Limited, number 04615294, incorporated 2002: 23 years of filings behind the name. Registered office: 166 Brinkburn Street, Newcastle Upon Tyne, Tyne And Wear, NE6 2AR, NE6 2AR. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Oxygen Online Marketing Limited, Oxygen Marketing and Design Limited.
Holding a licence is the expensive, slow part done. For N21 the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.