The register
The register lists Spectra Construction 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).
At Companies House the business is Spectra Construction Ltd (company number 12380471), a private limited company incorporated in 2019, 6 years ago. Registered office: 140 Dellfield, St. Albans, AL1 5HB, AL1 5HB. By its SIC codes the business is in construction.
For a candidate this means one less obstacle: Spectra Construction Ltd already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.