The register
The register lists London Sol Limited 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 London Sol Limited, number 11018305, incorporated 2017: 9 years of filings behind the name. Registered office: Unit 3 Fountayne Business Centre, Broad Lane, London, N15 4AG, N15 4AG. Its filed activity puts it in professional and technical services.
Holding a licence is the expensive, slow part done. For London Sol Limited the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.