opendata.bot
Company number
12428665

DOS SECURITY SYSTEMS LTD

Active
✓ Active company on the official register. Next accounts due 28 February 2027.

Company details

Registered name
DOS SECURITY SYSTEMS LTD
Company number
12428665
Registered office
24 HIGHFIELD DRIVE, HURSTPIERPOINT, HASSOCKS, BN6 9AT, ENGLAND
Company type
Private Limited Company
Incorporated on
28 January 2020
Status
Active
Age
6 years
Nature of business (SIC)
62012 — Business and domestic software development · 80200 — Security systems service activities
Accounts — next due
28 Feb 2027
Accounts — last made up to
31 May 2025
Confirmation statement — next due
21 Sept 2026
Confirmation statement — last
07 Sept 2025

People with significant control

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

Safak Avci
owns 75–100% of shares · holds 75–100% of voting rights · can appoint and remove directors
Notified 28/01/2020

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

Safak Avci
born 03/1983 · England owns 75–100% of shares · holds 75–100% of votes · can appoint and remove directors Notified 28/01/2020

Change history

Reconstructed from the dated records Companies House publishes

DateChangeWasNow
28/01/2020 Person with significant control added Safak Avci

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 3
▲ 2.3%
3
Net assets 3
▲ 2.3%
3
Employees (avg) 1
▼ 50.0%
2

Documents for DOS SECURITY SYSTEMS LTD

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.

PDF Order
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.

PDF + CSV Order
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

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/12428665
X-Api-Key: $OPENDATA_KEY
Read the API docs

Frequently asked questions

What is the company number of DOS SECURITY SYSTEMS LTD?
According to the official registry, the company number of DOS SECURITY SYSTEMS LTD is 12428665.
Where is DOS SECURITY SYSTEMS LTD registered?
The registered office is 24 HIGHFIELD DRIVE, HURSTPIERPOINT, HASSOCKS, BN6 9AT, ENGLAND.
What is the SIC code of DOS SECURITY SYSTEMS LTD?
The nature of business is recorded under SIC code 62012 — Business and domestic software development, 80200 — Security systems service activities.
Who controls DOS SECURITY SYSTEMS LTD?
Safak Avci 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 DOS SECURITY SYSTEMS LTD due?
The next annual accounts are due by 28 February 2027, and the last accounts were made up to 31 May 2025.

About DOS SECURITY SYSTEMS LTD (12428665)

DOS SECURITY SYSTEMS LTD is a private limited company incorporated on 28 January 2020 and registered in the United Kingdom under company number 12428665. Its registered office is at 24 HIGHFIELD DRIVE, HURSTPIERPOINT, HASSOCKS, BN6 9AT, ENGLAND. The recorded nature of business is business and domestic software development (SIC 62012). The company is currently active , with statutory accounts last made up to 31 May 2025. , and the person with significant control is Safak Avci. This profile is provided by opendata.bot by Noetikos, aggregating official data from Companies House bulk data , last refreshed 2 September 2026.

Business and domestic software development across UK registers

The same sector and the same company, seen through every register we hold

Explore by sector

Every UK company records what it does as a SIC code — browse the sectors around this one.