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Company number
11443276

PROTON CONTRACTOR LTD

Active
✓ Active company on the official register. Next accounts due 30 April 2027.

Company details

London, 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
PROTON CONTRACTOR LTD
Company number
11443276
Registered office
10 BARLEY MOW PASSAGE, UNIT BM3E.07, LONDON, W4 4PH, ENGLAND · 261 other companies at this postcode
Company type
Private Limited Company
Incorporated on
2 July 2018
Status
Active
Age
8 years
Nature of business (SIC)
43210 — Electrical installation · 43390 — Other building completion and finishing
Accounts — next due
30 Apr 2027
Accounts — last made up to
31 Jul 2025
Confirmation statement — next due
15 Jul 2027
Confirmation statement — last
01 Jul 2026

People with significant control

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

Mr Sebastian Lukasz Radosz
owns 75–100% of shares
Notified 02/07/2018

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

Mr Sebastian Lukasz Radosz
born 09/1984 · United Kingdom owns 75–100% of shares Notified 02/07/2018

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
02/07/2018 Person with significant control added Mr Sebastian Lukasz Radosz

Documents for PROTON CONTRACTOR LTD

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Company extract£1.99

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Financial statements£3.99

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Ownership report£3.99

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Data protection register

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

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Frequently asked questions

What is the company number of PROTON CONTRACTOR LTD?
According to the official registry, the company number of PROTON CONTRACTOR LTD is 11443276.
Where is PROTON CONTRACTOR LTD registered?
The registered office is 10 BARLEY MOW PASSAGE, UNIT BM3E.07, LONDON, W4 4PH, ENGLAND.
What is the SIC code of PROTON CONTRACTOR LTD?
The nature of business is recorded under SIC code 43210 — Electrical installation, 43390 — Other building completion and finishing.
Who controls PROTON CONTRACTOR LTD?
Mr Sebastian Lukasz Radosz is recorded as a person with significant control, and owns 75–100% of shares.
When are the next accounts of PROTON CONTRACTOR LTD due?
The next annual accounts are due by 30 April 2027, and the last accounts were made up to 31 July 2025.

About PROTON CONTRACTOR LTD (11443276)

PROTON CONTRACTOR LTD is a private limited company incorporated on 2 July 2018 and registered in the United Kingdom under company number 11443276. Its registered office is at 10 BARLEY MOW PASSAGE, UNIT BM3E.07, LONDON, W4 4PH, ENGLAND. The recorded nature of business is electrical installation (SIC 43210). The company is currently active , with statutory accounts last made up to 31 July 2025. , and the person with significant control is Mr Sebastian Lukasz Radosz. 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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