The register
Zag Limited, London, 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 Zag Limited, number 05589757, incorporated 2005: 21 years of filings behind the name. Registered office: 1st Floor Sackville House, 143-149 Fenchurch Street, London, EC3M 6BL, EC3M 6BL. By its SIC codes the business is in professional and technical services. It has traded under other names before, including Oval (2067) Limited.
Holding a licence is the expensive, slow part done. For Zag Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.