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Company No. 03768647 · Incorporated 12 May 1999

Intruder Detection & Surveillance Ltd.

Registered name: INTRUDER DETECTION & SURVEILLANCE LTD.

Part of Scutum UK & Ireland Ltd group

Intruder Detection & Surveillance Ltd. made £387k profit in the year to 31 Dec 2025 (revenue not disclosed).

Intruder Detection & Surveillance Ltd. reported £387k profit in the year to 31 Dec 2025; its revenue was not disclosed. It had 0 employees. The company is classified under “electrical installation” and is based in Gateshead; we hold 4 years of its filed accounts.

Profit onlySection F · ConstructionSIC 43210Electrical installationSIC 96090Other service activities n.e.c.
Status
Active
Location
Gateshead, North East
Age
27 yrs · since 1999
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. From the filing: “Prior to the”

Latest accounts · year to 31 Dec 2025

Key figures

Small teamBoring industry
Revenue
—
Not disclosed in filing
Profit
£387k
Growth —
Profit margin
—
 
Employees
0
Change —
Profit / employee
—
 
Profitable streak
2yrs
Consecutive profitable years in our data

This company published its profit but not its turnover, so revenue and margins are not disclosed. We never estimate them.

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

4 filed years

Financial history

Multi-year financials, oldest to newest
Year to31 May 202331 May 202431 May 202531 Dec 2025
DisclosureNo P&LNo P&LProfit onlyProfit only
Profit & loss
Revenue (turnover)————
Profit after tax——£690k£387k
Profit (best available)——£690k£387k
Employees (average)4143430
Ratios
Profit margin————
Profit per employee——£16.1k—
Growth (year on year)
Headcount growth—▲4.9%0%—
Balance sheet — indirect signals, not revenue
Cash at bank£1.7m£1.6m£1.5m£717k
Net assets£1.4m£1.4m£2m£2m
Fixed assets£145k£197k£188k£175k
Current assets£3.1m£2.9m£3.4m£3.6m
Debtors£1.1m£957k£1.3m£1.4m
Deferred income£336k£427k£356k—
SourceFilletedAccounts · bulk data Nov 2024FilletedAccounts · bulk data Nov 2024FilletedAccounts · bulk data Aug 2025FullAccounts · bulk data Jun 2026
Derived from the latest filing

How the business works

Profit margin
—
Profit ÷ revenue.
Gross margin
—
Gross profit ÷ revenue. High for software and services.
Revenue per employee
—
Revenue ÷ average employees.
Profit per employee
—
Profit ÷ average employees.
Cash conversion
—
Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue
—
Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue
—
Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue
—
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 £2m
Cash at bank
—
Now £717k
Headcount
—
Now 0
Deferred income
—
Now —
Fixed assets
—
Now £175k
Corporate ownership

Group structure

Ownership chain

  1. Scutum UK & Ireland Ltdultimate parent75–100%
  2. Intruder Detection & Surveillance Ltd.this company

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

Sister companies (10)

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

Same industry, similar size

Similar profitable businesses

Industry benchmarks →

Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Dec 2025 (profit £387k), from the Companies House accounts bulk data published Jun 2026. 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.