The register
The register lists Helios Technology in Farnborough, Hampshire 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 Helios Technology Limited, number 03257217, incorporated 1996: 30 years of filings behind the name. Registered office: 29 Hercules Way, Aerospace Boulevard Aeropark, Farnborough, Hampshire, GU14 6UU, GU14 6UU. Its filed activity puts it in professional and technical services. It has traded under other names before, including Helios System Engineering Ltd.
Holding a licence is the expensive, slow part done. For Helios Technology the question each time is only whether the role and the pay fit the current rules, and that is checked per vacancy.