opendata.bot
Company number
15301005

SANCTUM SYSTEMS LIMITED

Active
✓ Active company on the official register. Next accounts due 31 August 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
SANCTUM SYSTEMS LIMITED
Company number
15301005
Registered office
32 BYRON HILL ROAD, HARROW ON THE HILL, MIDDX, HA2 0HY, ENGLAND · 339 other companies at this postcode
Company type
Private Limited Company
Incorporated on
21 November 2023
Status
Active
Age
2 years
Nature of business (SIC)
63110 — Data processing, hosting and related activities
Accounts — next due
31 Aug 2027
Accounts — last made up to
30 Nov 2025
Confirmation statement — next due
04 Dec 2026
Confirmation statement — last
20 Nov 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

Mr Mark Christopher Ellis
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 21/11/2023

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 Mark Christopher Ellis
born 06/1959 · England owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 21/11/2023 Controls 3 companies

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
21/11/2023 Person with significant control added Mr Mark Christopher Ellis

Financial highlights

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

Source: Companies House bulk data filed accounts (iXBRL)
Metric FY2024
Total assets less current liabilities 0
Net assets -1
Employees (avg) 2

Documents for SANCTUM SYSTEMS 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

Registered with the Information Commissioner's Office as a data protection fee payer.

Sanctum Systems Limited — HA2 0HY
Tier 1 · renews 20/09/2026
ICO entry

The ICO publishes no company number, so this is matched on the registered name and confirmed by the postcode. Check the ICO entry before relying on it.

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/15301005
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of SANCTUM SYSTEMS LIMITED?
According to the official registry, the company number of SANCTUM SYSTEMS LIMITED is 15301005.
Where is SANCTUM SYSTEMS LIMITED registered?
The registered office is 32 BYRON HILL ROAD, HARROW ON THE HILL, MIDDX, HA2 0HY, ENGLAND.
What is the SIC code of SANCTUM SYSTEMS LIMITED?
The nature of business is recorded under SIC code 63110 — Data processing, hosting and related activities.
Who controls SANCTUM SYSTEMS LIMITED?
Mr Mark Christopher Ellis 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 SANCTUM SYSTEMS LIMITED due?
The next annual accounts are due by 31 August 2027, and the last accounts were made up to 30 November 2025.

About SANCTUM SYSTEMS LIMITED (15301005)

SANCTUM SYSTEMS LIMITED is a private limited company incorporated on 21 November 2023 and registered in the United Kingdom under company number 15301005. Its registered office is at 32 BYRON HILL ROAD, HARROW ON THE HILL, MIDDX, HA2 0HY, ENGLAND. The recorded nature of business is data processing, hosting and related activities (SIC 63110). The company is currently active , with statutory accounts last made up to 30 November 2025. , and the person with significant control is Mr Mark Christopher Ellis. 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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