QUANTINUUM LTD
Company details
| Company number | 09109848 |
|---|---|
| Status | Active |
| Company type | Private Limited Company |
| Incorporated | 1 July 2014 |
| Registered office | PARTNERSHIP HOUSE, CARLISLE PLACE, LONDON, SW1P 1BX, ENGLAND · More companies in SW1P |
| Nature of business (SIC) | 62090 — Other information technology service activities |
| Accounting reference date | 31 December |
| Next accounts due | 30 September 2027 (last made up to 31 December 2025) |
| Last accounts type | Full |
| Next confirmation statement due | 15 July 2027 (last made up to 1 July 2026) |
| Previous names | CAMBRIDGE QUANTUM COMPUTING LIMITED (until 9 August 2023) |
Source: Companies House Free Company Data Product, 1 November 2026. View filing history, officers and PSCs on Companies House.
Summary
QUANTINUUM LTD is a private limited company registered in the UK under company number 09109848. It was incorporated on 1 July 2014 and its current status is active.
The registered office address is PARTNERSHIP HOUSE, CARLISLE PLACE, LONDON, SW1P 1BX, ENGLAND.
Its declared nature of business is other information technology service activities (SIC 62090).
The next accounts are due by 30 September 2027 and the next confirmation statement by 15 July 2027.
It has traded under 1 previous name, most recently CAMBRIDGE QUANTUM COMPUTING LIMITED.
About QUANTINUUM LTD
Company type and jurisdiction
QUANTINUUM LTD is a private company limited by shares. Its owners (shareholders) are only liable for its debts up to the value of their shares, it must have at least one director, and its shares cannot be offered to the public. Its company number 09109848 shows it was registered in England and Wales, so its records are kept by Companies House in Cardiff. It has been on the register for 12 years and 4 months.
What QUANTINUUM LTD does
On the public register, QUANTINUUM LTD lists its activity using the UK Standard Industrial Classification (SIC 2007): other information technology service activities (62090). This places it in the information and communication section of the economy. SIC codes describe what a company says it does; they are not a licence and are not checked by Companies House. See other companies with the same SIC code.
Where QUANTINUUM LTD is registered
Its registered office is in London (postcode district SW1P). The registered office is the official address for letters from Companies House, HMRC and the courts. It must be in the same UK jurisdiction where the company was registered, but it does not have to be where the business trades: many companies use their accountant's or a formation agent's address. Browse other companies in SW1P.
Accounts and filing deadlines
QUANTINUUM LTD must file its next annual accounts by 30 September 2027. The last accounts on the register were full audited accounts, usually filed by larger companies. Its next confirmation statement, which confirms its officers, shareholders and registered office are up to date, is due by 15 July 2027. A private company that files its accounts late gets an automatic penalty of £150 if they are up to one month late, rising to £375, £750 and £1,500 after six months, and the penalty is doubled if accounts are late two years in a row. A company that does not file a confirmation statement can be struck off the register.
Before you do business with QUANTINUUM LTD
Check that the company name and number on its invoices and website match 09109848, read its latest accounts and confirmation statement, and look up its directors and people with significant control on the official register. If it charges VAT, ask for its VAT number and check it with our VAT number checker: a company number and a VAT number are different things. How to check a UK company.
Frequently asked questions
What is the company number of QUANTINUUM LTD?
The Companies House company number of QUANTINUUM LTD is 09109848.
Is QUANTINUUM LTD still trading?
QUANTINUUM LTD is listed as active on the Companies House register.
What is the registered office address of QUANTINUUM LTD?
The registered office of QUANTINUUM LTD is PARTNERSHIP HOUSE, CARLISLE PLACE, LONDON, SW1P 1BX, ENGLAND.
When was QUANTINUUM LTD incorporated?
QUANTINUUM LTD was incorporated on 1 July 2014.
What does QUANTINUUM LTD do?
Its nature of business (SIC) is: 62090 - Other information technology service activities.
When are QUANTINUUM LTD's next accounts due?
The next accounts of QUANTINUUM LTD are due by 30 September 2027.
When is QUANTINUUM LTD's confirmation statement due?
The next confirmation statement of QUANTINUUM LTD is due by 15 July 2027.
How old is QUANTINUUM LTD?
QUANTINUUM LTD was incorporated on 1 July 2014, so it is 12 years and 4 months old.
Who are the directors of QUANTINUUM LTD?
The current directors, secretaries and people with significant control of QUANTINUUM LTD are listed on the officers page of company 09109848 on the Companies House website.
What is the VAT number of QUANTINUUM LTD?
VAT numbers are issued by HMRC, not Companies House, and are not part of the company record. Ask QUANTINUUM LTD for its VAT number (GB followed by 9 digits) and check it with a VAT number checker.