The register
The register lists DIA Systems Limited in Peacehaven, East Sussex 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 Dia Systems Limited, number 04581339, incorporated 2002: 23 years of filings behind the name. The registered office is at Dayton House, Bolney Avenue, Peacehaven, BN10 8HF, BN10 8HF. By its SIC codes the business is in manufacturing and engineering. It has traded under other names before, including Designs in Aluminium Limited, Tempwall Limited.
For a candidate this means one less obstacle: DIA Systems Limited already has the licence most employers would have to apply for. The rest is the ordinary job of getting the interview.