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Company number
00394255

CALPINE LIMITED

Active
✓ Active company on the official register. Next accounts due 5 January 2027.

Company details

South East, 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
CALPINE LIMITED
Company number
00394255
Registered office
5TH FLOOR, R+ BUILDING, 2, BLAGRAVE STREET, READING, RG1 1AZ, UNITED KINGDOM · 82 other companies at this postcode
Company type
Private Limited Company
Incorporated on
27 March 1945
Status
Active
Age
81 years
Nature of business (SIC)
74990 — Non-trading company non trading
Accounts — next due
05 Jan 2027
Accounts — last made up to
05 Apr 2025
Confirmation statement — next due
04 Sept 2026
Confirmation statement — last
21 Aug 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

Ms Jane Falinska
owns 25–50% 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

Ms Jane Falinska
born 02/1952 · England owns 25–50% of shares Notified 06/04/2016

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
06/04/2016 Person with significant control added Ms Jane Falinska

Documents for CALPINE LIMITED

Need this one company on file? Buy the document on its own — no plan required.

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.

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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

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GET /v1/company/gb/00394255
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Read the API docs

Frequently asked questions

What is the company number of CALPINE LIMITED?
According to the official registry, the company number of CALPINE LIMITED is 00394255.
Where is CALPINE LIMITED registered?
The registered office is 5TH FLOOR, R+ BUILDING, 2, BLAGRAVE STREET, READING, RG1 1AZ, UNITED KINGDOM.
What is the SIC code of CALPINE LIMITED?
The nature of business is recorded under SIC code 74990 — Non-trading company non trading.
Who controls CALPINE LIMITED?
Ms Jane Falinska is recorded as a person with significant control, and owns 25–50% of shares.
When are the next accounts of CALPINE LIMITED due?
The next annual accounts are due by 5 January 2027, and the last accounts were made up to 5 April 2025.

About CALPINE LIMITED (00394255)

CALPINE LIMITED is a private limited company incorporated on 27 March 1945 and registered in the United Kingdom under company number 00394255. Its registered office is at 5TH FLOOR, R+ BUILDING, 2, BLAGRAVE STREET, READING, RG1 1AZ, UNITED KINGDOM. The recorded nature of business is non-trading company non trading (SIC 74990). The company is currently active , with statutory accounts last made up to 5 April 2025. , and the person with significant control is Ms Jane Falinska. 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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