The register
The register lists Web3 Labs 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 Web3 Labs Ltd, number 10783824, incorporated 2017: 9 years of filings behind the name. The registered office is at 7 Bell Yard, London, WC2A 2JR, WC2A 2JR. By its SIC codes the business is in it, software and media. It has traded under other names before, including Blk Technologies Limited.
Holding a licence is the expensive, slow part done. For Web3 Labs Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.