Skip to content
Independent. Not affiliated with the Home Office or Companies House.Register of 4 September 2026
SponsorDirectory

Quantum Detectors Ltd

Oxford

On the register

Quantum Detectors Ltd is one of 628 organisations in Oxford on the register, and one of 130 of them in professional, scientific and technical activities. The licence covers Skilled Worker. The company was incorporated in 2005, 20 years ago, and its accounts to 30 March 2025 report 38 employees.

Licensed route
Skilled Worker
Home Office rating
A rating
In our copies from
19 Aug 2026
Employees in latest accounts
38

Sponsor licence

Licence type
Worker
Skilled Worker
A rating

An A-rating is the standard rating a sponsor holds when its licence is granted and it is meeting its sponsor duties. What ratings mean

121,972 organisations hold this route.

On the register since
from 19 August 2026 — our copies of the register begin 19 August 2026, so the licence may be older

What this page cannot tell you

The register is a list of licence holders and nothing more. It does not record:

  • when the licence was granted, only that the organisation appears in the files we hold
  • any job vacancy, or whether the organisation is recruiting at all
  • contact details, a careers page or a named person
  • why an organisation was removed, or why a rating changed

What the register is · Why sponsors are removed · How often it updates

Change history

  1. 19 August 2026First appears in our copies of the register

We compare every published file against the last one, so this history grows with each publication.

Companies House record

Registered name
QUANTUM DETECTORS LIMITED
Company number
05575019
Status
active · incorporated 27 September 2005 (20 years)
Industry
72190 Other research and experimental development on natural sciences and engineering · Professional, scientific and technical activities
Size
Small38 employees in accounts to 30 March 2025
Registered office
R103 HARWELL CAMPUS, DIDCOT, OXFORDSHIRE, ENGLAND, OX11 0QX

Source: Companies House public register, data as of 4 August 2026. A registered office is not a confirmed trading address. Full company record on Rooplex

7 other sponsors at this address

Licence holders whose registered office shares the postcode OX11 0QX. Accountants and company formation agents provide the registered office for many companies, so a shared address is common and says nothing about the organisations themselves.

  • HiSkySat Ltd

    A rating

    Harwell, Oxfordshire · Global Business Mobility: Senior or Specialist Worker, Skilled Worker

    Information and communication · small company · 15 employees

  • Harwell, Oxfordshire · Skilled Worker

    Information and communication · small company · 10 employees

  • Didcot, Oxfordshire · Skilled Worker

    Information and communication · small company · 19 employees

  • Satraka Ltd

    A rating

    Didcot · Skilled Worker

    Professional, scientific and technical activities · small company

  • Chilton, Oxfordshire · Skilled Worker

    Manufacturing · small company · 14 employees

  • Didcot, Oxfordshire · Skilled Worker

    Professional, scientific and technical activities · micro company

Showing 6 of 7.