MAINSTREAM COMPUTER SYSTEMS LIMITED
Company details
| Company number | 03467013 |
|---|---|
| Status | Active |
| Company type | Private Limited Company |
| Incorporated | 17 November 1997 |
| Registered office | 450 BROOK DRIVE, READING, RG2 6UU, ENGLAND · More companies in RG2 |
| Nature of business (SIC) | 62020 — Information technology consultancy activities |
| Accounting reference date | 30 November |
| Next accounts due | 31 August 2027 (last made up to 30 November 2025) |
| Last accounts type | Unaudited Abridged |
| Next confirmation statement due | 24 December 2026 (last made up to 10 December 2025) |
Source: Companies House Free Company Data Product, 1 November 2026. View filing history, officers and PSCs on Companies House.
Summary
MAINSTREAM COMPUTER SYSTEMS LIMITED is a private limited company registered in the UK under company number 03467013. It was incorporated on 17 November 1997 and its current status is active.
The registered office address is 450 BROOK DRIVE, READING, RG2 6UU, ENGLAND.
Its declared nature of business is information technology consultancy activities (SIC 62020).
The next accounts are due by 31 August 2027 and the next confirmation statement by 24 December 2026.
About MAINSTREAM COMPUTER SYSTEMS LIMITED
Company type and jurisdiction
MAINSTREAM COMPUTER SYSTEMS LIMITED 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 03467013 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 28 years and 11 months.
What MAINSTREAM COMPUTER SYSTEMS LIMITED does
On the public register, MAINSTREAM COMPUTER SYSTEMS LIMITED lists its activity using the UK Standard Industrial Classification (SIC 2007): information technology consultancy activities (62020). 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 MAINSTREAM COMPUTER SYSTEMS LIMITED is registered
Its registered office is in Reading (postcode district RG2). 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 RG2.
Accounts and filing deadlines
MAINSTREAM COMPUTER SYSTEMS LIMITED must file its next annual accounts by 31 August 2027. The last accounts on the register were abridged accounts of a small company that were not audited. Its next confirmation statement, which confirms its officers, shareholders and registered office are up to date, is due by 24 December 2026. 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 MAINSTREAM COMPUTER SYSTEMS LIMITED
Check that the company name and number on its invoices and website match 03467013, 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 MAINSTREAM COMPUTER SYSTEMS LIMITED?
The Companies House company number of MAINSTREAM COMPUTER SYSTEMS LIMITED is 03467013.
Is MAINSTREAM COMPUTER SYSTEMS LIMITED still trading?
MAINSTREAM COMPUTER SYSTEMS LIMITED is listed as active on the Companies House register.
What is the registered office address of MAINSTREAM COMPUTER SYSTEMS LIMITED?
The registered office of MAINSTREAM COMPUTER SYSTEMS LIMITED is 450 BROOK DRIVE, READING, RG2 6UU, ENGLAND.
When was MAINSTREAM COMPUTER SYSTEMS LIMITED incorporated?
MAINSTREAM COMPUTER SYSTEMS LIMITED was incorporated on 17 November 1997.
What does MAINSTREAM COMPUTER SYSTEMS LIMITED do?
Its nature of business (SIC) is: 62020 - Information technology consultancy activities.
When are MAINSTREAM COMPUTER SYSTEMS LIMITED's next accounts due?
The next accounts of MAINSTREAM COMPUTER SYSTEMS LIMITED are due by 31 August 2027.
When is MAINSTREAM COMPUTER SYSTEMS LIMITED's confirmation statement due?
The next confirmation statement of MAINSTREAM COMPUTER SYSTEMS LIMITED is due by 24 December 2026.
How old is MAINSTREAM COMPUTER SYSTEMS LIMITED?
MAINSTREAM COMPUTER SYSTEMS LIMITED was incorporated on 17 November 1997, so it is 28 years and 11 months old.
Who are the directors of MAINSTREAM COMPUTER SYSTEMS LIMITED?
The current directors, secretaries and people with significant control of MAINSTREAM COMPUTER SYSTEMS LIMITED are listed on the officers page of company 03467013 on the Companies House website.
What is the VAT number of MAINSTREAM COMPUTER SYSTEMS LIMITED?
VAT numbers are issued by HMRC, not Companies House, and are not part of the company record. Ask MAINSTREAM COMPUTER SYSTEMS LIMITED for its VAT number (GB followed by 9 digits) and check it with a VAT number checker.