The register
The register lists Hallam Management Limited in London 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).
Companies House lists it as Hallam Management Limited, number 08081331, incorporated 2012: 14 years of filings behind the name. The registered office is at 27 King's Mews, London, WC1N 2JB, WC1N 2JB. Its filed activity puts it in construction. It has traded under other names before, including Print Log (UK) Limited.
Holding a licence is the expensive, slow part done. For Hallam Management Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.