The register
The register lists Shield 4 Services Ltd in London as a licensed sponsor on Skilled Worker, an entry that goes back to at least 2026. Rating on the current register: Worker (A rating).
Companies House lists it as Shield 4 Services Ltd, number 11232280, incorporated 2018: 8 years of filings behind the name. Registered office: 63/66 Hatton Garden, Fifth Floor, Suite 23, London, EC1N 8LE, EC1N 8LE. Its filed activity puts it in business services.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Shield 4 Services Ltd's own careers page and the job boards, and the answer changes with the season and the order book.