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Company number
10346484

TRIANGLE INTEGRATED SERVICES LIMITED

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

Company details

Registered name
TRIANGLE INTEGRATED SERVICES LIMITED
Company number
10346484
Registered office
BUILDING 16, GATEWAY 1000 WHITTLE WAY, ARLINGTON BUSINESS PARK, STEVENAGE, HERTFORDSHIRE, SG1 2FP, ENGLAND
Company type
Private Limited Company
Incorporated on
25 August 2016
Status
Active
Age
10 years
Previous names
CORNERSTONE FIRE SYSTEMS LIMITED (to 01 Aug 2017)
Nature of business (SIC)
99999 — Dormant Company
Accounts — next due
31 May 2027
Accounts — last made up to
31 Aug 2025
Confirmation statement — next due
07 Sept 2026
Confirmation statement — last
24 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

Cornerstone Security Group (Uk) Ltd
owns 75–100% of shares
Notified 25/08/2016

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

Cornerstone Security Group (Uk) Ltd name only
owns 75–100% of shares Notified 25/08/2016

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
01/08/2017 Registered name changed CORNERSTONE FIRE SYSTEMS LIMITED TRIANGLE INTEGRATED SERVICES LIMITED
25/08/2016 Person with significant control added Cornerstone Security Group (Uk) Ltd

Documents for TRIANGLE INTEGRATED SERVICES 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

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

GET /v1/company/gb/10346484
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of TRIANGLE INTEGRATED SERVICES LIMITED?
According to the official registry, the company number of TRIANGLE INTEGRATED SERVICES LIMITED is 10346484.
Where is TRIANGLE INTEGRATED SERVICES LIMITED registered?
The registered office is BUILDING 16, GATEWAY 1000 WHITTLE WAY, ARLINGTON BUSINESS PARK, STEVENAGE, HERTFORDSHIRE, SG1 2FP, ENGLAND.
What is the SIC code of TRIANGLE INTEGRATED SERVICES LIMITED?
The nature of business is recorded under SIC code 99999 — Dormant Company.
Who controls TRIANGLE INTEGRATED SERVICES LIMITED?
Cornerstone Security Group (Uk) Ltd is recorded as a person with significant control, and owns 75–100% of shares.
When are the next accounts of TRIANGLE INTEGRATED SERVICES LIMITED due?
The next annual accounts are due by 31 May 2027, and the last accounts were made up to 31 August 2025.

About TRIANGLE INTEGRATED SERVICES LIMITED (10346484)

TRIANGLE INTEGRATED SERVICES LIMITED is a private limited company incorporated on 25 August 2016 and registered in the United Kingdom under company number 10346484. Its registered office is at BUILDING 16, GATEWAY 1000 WHITTLE WAY, ARLINGTON BUSINESS PARK, STEVENAGE, HERTFORDSHIRE, SG1 2FP, ENGLAND. The recorded nature of business is dormant company (SIC 99999). The company is currently active , with statutory accounts last made up to 31 August 2025. , and the person with significant control is Cornerstone Security Group (Uk) Ltd. 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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