The register
Sigma Engineering Product Design Ltd, Irvine, North Ayrshire, holds a Home Office sponsor licence on the Skilled Worker route, and has been on the register since at least 2026. Its rating on the register is Worker (A rating).
Companies House lists it as Sigma Engineering Product Design Ltd., number 04475408, incorporated 2002: 24 years of filings behind the name. The registered office is at 167-169 Great Portland Street, 5th Floor, London, W1W 5PF, W1W 5PF. By its SIC codes the business is in manufacturing and engineering.
Holding a licence is the expensive, slow part done. For Sigma Engineering Product Design Ltd the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.