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Company number
05606386

COMPLEX SYSTEMS RESEARCH LIMITED

Active
✓ Active company on the official register. Next accounts due 31 July 2027.

Company details

East of England, England Contains OS data © Crown copyright and database right. Contains Royal Mail data © Royal Mail copyright and database right. Source: Office for National Statistics licensed under the Open Government Licence v.3.0.
Registered name
COMPLEX SYSTEMS RESEARCH LIMITED
Company number
05606386
Registered office
UNIT 1, CAMBRIDGE HOUSE CAMBORO BUSINESS PARK, OAKINGTON ROAD, GIRTON, CAMBRIDGE, CAMBRIDGESHIRE, CB3 0QH, UNITED KINGDOM · 263 other companies at this postcode
Company type
Private Limited Company
Incorporated on
28 October 2005
Status
Active
Age
20 years
Nature of business (SIC)
72190 — Other research and experimental development on natural sciences and engineering
Accounts — next due
31 Jul 2027
Accounts — last made up to
31 Oct 2025
Confirmation statement — next due
11 Nov 2026
Confirmation statement — last
28 Oct 2025

What the register says

Facts from the register, with the dates they are filed under. Not a score: what they mean is for you to judge, and every line can be checked against Companies House itself.

Companies House register snapshot, read 02/09/2026.

People with significant control

Beneficial owners holding over 25% of shares, voting rights or the right to appoint directors

Dr Vaughan William Wittorff
owns 75–100% of shares
Notified 06/04/2016

Corporate structure

Who controls this company, and who they control in turn

1 controller Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Dr Vaughan William Wittorff
born 05/1972 · England owns 75–100% of shares Notified 06/04/2016 Controls 4 companies

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
06/04/2016 Person with significant control added Dr Vaughan William Wittorff

Documents for COMPLEX SYSTEMS RESEARCH LIMITED

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Company extract£1.99

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Financial statements£3.99

Every figure the company’s own accounts state, across each filed period, with year-on-year movement. Most UK companies file small or micro-entity accounts — a balance sheet and a headcount, no turnover or profit.

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Ownership report£3.99

Who controls the company: persons with significant control, the nature of that control, the ownership graph and every other company those controllers hold.

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Data protection register

No entry found on the ICO register of fee payers under this name.

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Get this company via API

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Frequently asked questions

What is the company number of COMPLEX SYSTEMS RESEARCH LIMITED?
According to the official registry, the company number of COMPLEX SYSTEMS RESEARCH LIMITED is 05606386.
Where is COMPLEX SYSTEMS RESEARCH LIMITED registered?
The registered office is UNIT 1, CAMBRIDGE HOUSE CAMBORO BUSINESS PARK, OAKINGTON ROAD, GIRTON, CAMBRIDGE, CAMBRIDGESHIRE, CB3 0QH, UNITED KINGDOM.
What is the SIC code of COMPLEX SYSTEMS RESEARCH LIMITED?
The nature of business is recorded under SIC code 72190 — Other research and experimental development on natural sciences and engineering.
Who controls COMPLEX SYSTEMS RESEARCH LIMITED?
Dr Vaughan William Wittorff is recorded as a person with significant control, and owns 75–100% of shares.
When are the next accounts of COMPLEX SYSTEMS RESEARCH LIMITED due?
The next annual accounts are due by 31 July 2027, and the last accounts were made up to 31 October 2025.

About COMPLEX SYSTEMS RESEARCH LIMITED (05606386)

COMPLEX SYSTEMS RESEARCH LIMITED is a private limited company incorporated on 28 October 2005 and registered in the United Kingdom under company number 05606386. Its registered office is at UNIT 1, CAMBRIDGE HOUSE CAMBORO BUSINESS PARK, OAKINGTON ROAD, GIRTON, CAMBRIDGE, CAMBRIDGESHIRE, CB3 0QH, UNITED KINGDOM. The recorded nature of business is other research and experimental development on natural sciences and engineering (SIC 72190). The company is currently active , with statutory accounts last made up to 31 October 2025. , and the person with significant control is Dr Vaughan William Wittorff. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

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