The register
The register lists Altro Limited in Letchworth Garden City, Hertfordshire as a licensed sponsor on Global Business Mobility: Senior or Specialist Worker and Skilled Worker, 2 routes in all, and has done since at least 2026. The register records its rating as Worker (A rating).
At Companies House the business is Altro Limited (company number 00154159), a private limited company incorporated in 1919, 107 years ago. The registered office is at Works Road, Letchworth Garden City, Hertfordshire, SG6 1NW, SG6 1NW. By its SIC codes the business is in manufacturing. It has traded under other names before, including Adamite Company Limited.
For a candidate this means one less obstacle: Altro Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.