The register
The register lists Powerzone 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 Powerzone UK Limited, number 06451778, incorporated 2007: 18 years of filings behind the name. Registered office: 27 Hawkes Close, Langley, Berkshire, SL3 8BN, SL3 8BN. Its filed activity puts it in mining and quarrying.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Powerzone's own careers page and the job boards, and the answer changes with the season and the order book.