opendata.bot
Company number
09711698

CALSIM LIMITED

Active
✓ Active company on the official register. Next accounts due 30 April 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
CALSIM LIMITED
Company number
09711698
Registered office
SUITE E2, THE OCTAGON, 2ND FLOOR MIDDLEBOROUGH, COLCHESTER, ESSEX, CO1 1TG, ENGLAND · 324 other companies at this postcode
Company type
Private Limited Company
Incorporated on
31 July 2015
Status
Active
Age
11 years
Nature of business (SIC)
82990 — Other business support service activities n.e.c.
Accounts — next due
30 Apr 2027
Accounts — last made up to
31 Jul 2025
Confirmation statement — next due
14 Aug 2026
Confirmation statement — last
31 Jul 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

Mark Robin Sutton
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 20/07/2017

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

Mark Robin Sutton
born 10/1972 · United Kingdom owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 20/07/2017

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
20/07/2017 Person with significant control added Mark Robin Sutton

Financial highlights

Parsed from the filed statutory accounts (£ thousands, except employees)

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2025FY2024
Total assets less current liabilities 95
▼ 5.0%
100
Net assets 90
▼ 4.0%
94
Employees (avg) 1 1

Documents for CALSIM 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.

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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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Read the API docs

Frequently asked questions

What is the company number of CALSIM LIMITED?
According to the official registry, the company number of CALSIM LIMITED is 09711698.
Where is CALSIM LIMITED registered?
The registered office is SUITE E2, THE OCTAGON, 2ND FLOOR MIDDLEBOROUGH, COLCHESTER, ESSEX, CO1 1TG, ENGLAND.
What is the SIC code of CALSIM LIMITED?
The nature of business is recorded under SIC code 82990 — Other business support service activities n.e.c..
Who controls CALSIM LIMITED?
Mark Robin Sutton is recorded as a person with significant control, and owns 75–100% of shares, holds 75–100% of voting rights, can appoint and remove directors.
When are the next accounts of CALSIM LIMITED due?
The next annual accounts are due by 30 April 2027, and the last accounts were made up to 31 July 2025.

About CALSIM LIMITED (09711698)

CALSIM LIMITED is a private limited company incorporated on 31 July 2015 and registered in the United Kingdom under company number 09711698. Its registered office is at SUITE E2, THE OCTAGON, 2ND FLOOR MIDDLEBOROUGH, COLCHESTER, ESSEX, CO1 1TG, ENGLAND. The recorded nature of business is other business support service activities n.e.c. (SIC 82990). The company is currently active , with statutory accounts last made up to 31 July 2025. , and the person with significant control is Mark Robin Sutton. 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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