--- title: "Quantum Detectors Ltd: UK sponsor licence status" canonical: https://uk-sponsors.getborderless.co.uk/sponsors/quantum-detectors-ltd-oxford-727466 register_status: active register_as_of: 2026-10-30 publisher: Borderless (https://www.getborderless.co.uk) source: UK Home Office register of licensed sponsors (Open Government Licence v3); Companies House --- # Quantum Detectors Ltd: UK sponsor licence status > As of 30 October 2026, Quantum Detectors Ltd (Companies House 05575019, Oxford) holds an A-rated Worker sponsor licence covering the Skilled Worker route and has appeared on the UK Home Office register of licensed sponsors since 25 May 2022 (source: Borderless, from the GOV.UK register of licensed sponsors and Companies House). ## Key facts - Register status: Active: on the current register and licensed to sponsor workers - Licence type and rating: Worker (A rating) - Visa routes: Skilled Worker - First seen on the register: 25 May 2022 - Legal name: QUANTUM DETECTORS LIMITED - Industry: Professional Services - Town: Oxford - Registered address: R103 Harwell Campus, Didcot, Oxfordshire, England, OX11 0QX - Companies House number: 05575019 (https://find-and-update.company-information.service.gov.uk/company/05575019) - Website: https://quantumdetectors.com/ - LinkedIn: https://www.linkedin.com/company/quantum-detectors-ltd-/ - Register data as of: 30 October 2026 (GOV.UK register of licensed sponsors, re-read daily) - Web page: https://uk-sponsors.getborderless.co.uk/sponsors/quantum-detectors-ltd-oxford-727466 ## Where this sponsor sits - One of 629 licensed sponsors in Oxford: https://uk-sponsors.getborderless.co.uk/sponsors/in/oxford - One of 10,299 in Professional Services: https://uk-sponsors.getborderless.co.uk/sponsors/industry/professional-services - Among 122,278 Skilled Worker sponsors: https://uk-sponsors.getborderless.co.uk/sponsors/route/skilled-worker ## Companies House changes since it joined the register 11 changes worth checking, checked 1 November 2026, newest first: - 22 Oct 2026: Registered office address changed. Registered office change recorded on 22 Oct 2026. If the address on your sponsor licence has changed, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. The 20-working-day window runs to about 19 Nov 2026. - 1 Oct 2026: Registered office address changed. Registered office change recorded on 1 Oct 2026. If the address on your sponsor licence has changed, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 12 Jun 2026: New director appointed: HOUSDEN, Sally Nicola. Director change recorded on 12 Jun 2026. If this person is now your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 12 Jun 2026: New director appointed: ORYAN, Liam Philip, Dr. Director change recorded on 12 Jun 2026. If this person is now your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 14 Nov 2025: Director resigned: SHOTTON, Elizabeth, Dr. Director change recorded on 14 Nov 2025. If this person was your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 8 Apr 2025: Notification of 5015 Limited as a person with significant control. New majority owner or controller recorded on 8 Apr 2025. If control of your organisation has passed to a new owner, the licence does not transfer automatically, and a new licence application may be needed within 20 working days. - 28 Mar 2025: Director resigned: ALLOTT, Richard Mark, Dr. Director change recorded on 28 Mar 2025. If this person was your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 7 Aug 2023: New director appointed: ALLOTT, Richard Mark, Dr. Director change recorded on 7 Aug 2023. If this person is now your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 7 Aug 2023: Director resigned: KIRBY, Elizabeth Ann, Dr. Director change recorded on 7 Aug 2023. If this person was your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 26 Apr 2023: New director appointed: GRAHAM, Andrew. Director change recorded on 26 Apr 2023. If this person is now your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. - 2 Jul 2022: Director resigned: CURRAN, Julie Marion, Dr. Director change recorded on 2 Jul 2022. If this person was your Authorising Officer, Key Contact or Level 1 user, the change must be reported in the SMS (the Home Office sponsor system) within 20 working days. Companies House cannot show who holds the licence roles or whether a change was reported to the Home Office, so these are prompts to check against your own records, not findings. ## Sponsored jobs No listings matched yet. Job listings are harvested daily from Reed, Adzuna, Jooble and Careerjet and matched back to the register by employer name. ## Common questions about Quantum Detectors Ltd ### Is Quantum Detectors Ltd a licensed UK visa sponsor? Yes. Quantum Detectors Ltd in Oxford is on the Home Office register of licensed sponsors under this name since 2022. It can sponsor workers from overseas, but not every job it advertises comes with sponsorship. ### What visa routes can Quantum Detectors Ltd sponsor? Quantum Detectors Ltd is licensed for Skilled Worker. Its licence rating on the register is "Worker (A rating)". ### Where is Quantum Detectors Ltd based? The register lists Quantum Detectors Ltd at R103 Harwell Campus, Didcot, Oxfordshire, England, OX11 0QX. This is usually the head office; the job itself may be somewhere else. ### How current is this information? This page uses the UK Home Office register of licensed sponsors, as published on 30 October 2026, and Companies House records for company number 05575019. We update it daily. Always confirm a licence status on GOV.UK. ## About this data - Source register: UK Home Office, Register of Licensed Sponsors (Workers), https://www.gov.uk/government/publications/register-of-licensed-sponsors-workers (Open Government Licence v3). GOV.UK is authoritative; confirm there before relying on a licence status. - Company records: Companies House, https://find-and-update.company-information.service.gov.uk/ - Published by Borderless (https://www.getborderless.co.uk), an OISC-regulated UK immigration provider. This is public register data, not legal advice. - "First seen on the register" is when this organisation first appeared in our data, not the official licence grant date. - Web page: https://uk-sponsors.getborderless.co.uk/sponsors/quantum-detectors-ltd-oxford-727466 - This fact sheet: https://uk-sponsors.getborderless.co.uk/sponsors/quantum-detectors-ltd-oxford-727466.md - Site overview for AI agents: https://uk-sponsors.getborderless.co.uk/llms.txt - Something wrong? Request a correction from the web page and the Borderless team will check it.