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Company number
03344096

ACT SIDER LIMITED

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

Company details

Registered name
ACT SIDER LIMITED
Company number
03344096
Registered office
10-12 BOURLET CLOSE, LONDON, W1W 7BR, ENGLAND
Company type
Private Limited Company
Incorporated on
2 April 1997
Status
Active
Age
29 years
Nature of business (SIC)
64209 — Activities of other holding companies n.e.c.
Accounts — next due
31 Jan 2027
Accounts — last made up to
30 Apr 2025
Confirmation statement — next due
30 Apr 2027
Confirmation statement — last
16 Apr 2026

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

Isabel Cristina O Reilly Cana
Notified 10/11/2016
Lucila Tania Lara Acosta
Notified 10/11/2016
Ms Liudis Diaz Alfonso
Notified 29/05/2024

Corporate structure

Who controls this company, and who they control in turn

3 controllers Drag to move · scroll to zoom · double-click to expand
Company Person Current control Ended

Connections

Lucila Tania Lara Acosta
born 10/1964 · Cuba has significant influence or control Notified 10/11/2016
Ms Liudis Diaz Alfonso
born 09/1973 · England has significant influence or control Notified 29/05/2024
Isabel Cristina O Reilly Cana
born 07/1967 · Cuba has significant influence or control Control ended 29/05/2024

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
29/05/2024 Person with significant control ceased Isabel Cristina O Reilly Cana
29/05/2024 Person with significant control added Ms Liudis Diaz Alfonso
10/11/2016 Person with significant control added Lucila Tania Lara Acosta
10/11/2016 Person with significant control added Isabel Cristina O Reilly Cana

Documents for ACT SIDER LIMITED

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Company extract£1.99

The full registration record as held today — name, number, status, registered office, company type, previous names, officers, PSC and SIC codes, timestamped for your file.

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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.

PDF Order

Data protection register

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

Not every organisation has to register — some are exempt. An absent entry is a question to ask, not a finding.

Get this company via API

Every field on this page is available as structured JSON behind one endpoint and one API key.

GET /v1/company/gb/03344096
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of ACT SIDER LIMITED?
According to the official registry, the company number of ACT SIDER LIMITED is 03344096.
Where is ACT SIDER LIMITED registered?
The registered office is 10-12 BOURLET CLOSE, LONDON, W1W 7BR, ENGLAND.
What is the SIC code of ACT SIDER LIMITED?
The nature of business is recorded under SIC code 64209 — Activities of other holding companies n.e.c..
Who controls ACT SIDER LIMITED?
Isabel Cristina O Reilly Cana is recorded as a person with significant control.
When are the next accounts of ACT SIDER LIMITED due?
The next annual accounts are due by 31 January 2027, and the last accounts were made up to 30 April 2025.

About ACT SIDER LIMITED (03344096)

ACT SIDER LIMITED is a private limited company incorporated on 2 April 1997 and registered in the United Kingdom under company number 03344096. Its registered office is at 10-12 BOURLET CLOSE, LONDON, W1W 7BR, ENGLAND. The recorded nature of business is activities of other holding companies n.e.c. (SIC 64209). The company is currently active , with statutory accounts last made up to 30 April 2025. , and the person with significant control is Isabel Cristina O Reilly Cana. 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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