Skip to content
CompanySight
Company No. 02332983 · Incorporated 6 Jan 1989

Computerised and Digital Security Systems Limited

Registered name: COMPUTERISED AND DIGITAL SECURITY SYSTEMS LIMITED

Part of Johnson Controls International Plc group

Computerised and Digital Security Systems Limited made £4.6m revenue and £401k profit in the year to 30 Sep 2023.

Computerised and Digital Security Systems Limited’s revenue was £4.6m in the year to 30 Sep 2023, with £401k profit and 25 employees. The company is classified under “security systems service activities” and is based in Sunbury-on-Thames; we hold 3 years of its filed accounts.

Full P&L filedSection N · Administrative and support servicesSIC 80200Security systems service activities
Status
Active - Proposal to Strike off
Location
Sunbury-on-Thames, London
Age
37 yrs · since 1989
Type
Private Limited Company

Part of a group. The filing indicates this company sits within a group structure, so its results may depend on intra-group trading and it may be hard to replicate independently.

Latest accounts · year to 30 Sep 2023

Key figures

Capital-light
Revenue
£4.6m
Growth —
Profit
£401k
Growth —
Profit margin
8.6%
Gross 38.7%
Employees
25
Change —
Profit / employee
£16k
Revenue/employee £186k
Profitable streak
1yr
Consecutive profitable years in our data

Badges are automated estimates derived from the filed figures — not statements of fact about the company.

3 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 Jan 202231 Jan 202330 Sep 2023
DisclosureFull P&LFull P&LFull P&L
Profit & loss
Revenue (turnover)£4.8m£6.4m£4.6m
Cost of sales£3.1m£4.2m£2.8m
Gross profit£1.7m£2.2m£1.8m
Operating profit£367k£771k£319k
Profit before tax£366k£99.4k£401k
Profit after tax£291k−£61.4k£401k
Profit (best available)£291k−£61.4k£401k
Employees (average)343825
Ratios
Profit margin6%−1%8.6%
Gross margin34.8%33.8%38.7%
Revenue per employee£142k£168k£186k
Profit per employee£8.6k−£1.6k£16k
Growth (year on year)
Revenue growth—▲32.3%—
Profit growth—▼121.1%—
Headcount growth—▲11.8%—
Balance sheet — indirect signals, not revenue
Cash at bank£178k£287k£72.2k
Net assets£1.3m£1.2m£1.6m
Fixed assets£1.1m£625k£124k
Current assets£1.7m£1.9m£2.8m
Debtors£1.1m£976k£986k
SourceAccounts · bulk data Oct 2023Accounts · bulk data Oct 2023FullAccounts · bulk data Jun 2024
Derived from the latest filing

How the business works

Profit margin
8.6%
Profit ÷ revenue.
Gross margin
38.7%
Gross profit ÷ revenue. High for software and services.
Revenue per employee
£186k
Revenue ÷ average employees.
Profit per employee
£16k
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
2.7%
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
21.2%
Money owed by customers. Low = customers pay quickly.
Indirect — not revenue

Balance-sheet signals

Year-on-year changes in filed balance-sheet items. They can hint at momentum (or investment) but are not revenue or profit and must not be read as such.

Net assets
—
Now £1.6m
Cash at bank
—
Now £72.2k
Headcount
—
Now 25
Deferred income
—
Now —
Fixed assets
—
Now £124k
Corporate ownership

Group structure

Ownership chain

  1. Johnson Controls International Plc (registered outside the UK register)ultimate parent75–100%
  2. Tyco Holdings (U.K.) Limited75–100%
  3. Adt Fire and Security PLC75–100%
  4. Computerised and Digital Security Systems Limitedthis company

Bands show the share of ownership each company holds in the one below it.

Subsidiaries (1)

Sister companies (5)

From the Persons with Significant Control register (corporate controllers only).

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Latest figures from FullAccounts for the year to 30 Sep 2023 (profit £401k), from the Companies House accounts bulk data published Jun 2024. Spotted an error? Request a correction.

Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.