The register
The register lists Circulor Ltd 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 Circulor Ltd, number 11067668, incorporated 2017: 8 years of filings behind the name. Registered office: Aircraft Factory, 100 Cambridge Grove, London, W6 0LE, W6 0LE. By its SIC codes the business is in it, software and media.
What the licence tells a candidate is that the door is not locked. Whether it is open this month is a question for Circulor Ltd's own careers page and the job boards, and the answer changes with the season and the order book.