How much does Silent Sentinel Limited make?

Silent Sentinel Limited reported revenue of £15.4m and a loss of £6.9m in the year to 31 Dec 2025, according to its accounts filed at Companies House.

How many employees does Silent Sentinel Limited have?

Silent Sentinel Limited reported an average of 0 employees in the year to 31 Dec 2025.

Is Silent Sentinel Limited profitable?

No — Silent Sentinel Limited reported a loss of £6.9m in the year to 31 Dec 2025.

Company No. 04556945 · Incorporated 8 Oct 2002

Silent Sentinel Limited

Registered name: SILENT SENTINEL LIMITED

Part of Motorola Solutions, Inc group

Silent Sentinel Limited made £15.4m revenue and a £6.9m loss in the year to 31 Dec 2025. read from filing text

Silent Sentinel Limited’s revenue was £15.4m in the year to 31 Dec 2025, with a loss of £6.9m and 0 employees. The company is classified under “engineering design activities for industrial process and production” and is based in London; we hold 4 years of its filed accounts.

Full P&L filedSection M · Professional, scientific and technical activitiesSIC 71121Engineering design activities for industrial process and production

Status: Active
Location: London, London
Age: 24 yrs · since 2002
Type: Private Limited Company

Pass-through vehicle. This looks like a holding, staffing or umbrella company. Its revenue and profit may largely pass through to or from other entities, so the figures may not reflect a standalone operating business. It is excluded from our opportunity lists.

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: “The company is a wholly owned subsidiary of The Silent Sentinel Group Limited whose registered office is Nova South, 160 Victoria Street, London, United Kingdom, SW1E 5LB.”

Latest accounts · year to 31 Dec 2025

Key figures

Small team

Revenue

£15.4m

Growth —

Profit

−£6.9m

Growth —

Profit margin

−44.9%

Gross 1.3%

Employees

Change —

Profit / employee

—

Profitable streak

0yrs

Consecutive profitable years in our data

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 to	31 Oct 2022	31 Oct 2023	31 Dec 2024	31 Dec 2025
Disclosure	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text	Full P&Lread from filing text
Profit & loss
Revenue (turnover)	£10.9m	£18.1m	£18.7m	£15.4m
Cost of sales	£6.3m	£12.5m	£14.5m	£15.2m
Gross profit	£4.6m	£5.5m	£4.1m	£205k
Operating profit	£753k	£1.3m	−£1.9m	−£6.8m
Profit before tax	£589k	£1.1m	−£2m	−£7.1m
Profit after tax	£637k	£933k	−£2m	−£6.9m
Profit (best available)	£637k	£933k	−£2m	−£6.9m
Staff costs	£2.2m	£2.4m	£4m	—
Employees (average)	47	66	72	0
Ratios
Profit margin	5.9%	5.2%	−10.6%	−44.9%
Gross margin	41.9%	30.6%	22.2%	1.3%
Revenue per employee	£231k	£274k	£259k	—
Profit per employee	£13.6k	£14.1k	−£27.5k	—
Growth (year on year)
Revenue growth	—	▲66.5%	—	—
Profit growth	—	▲46.5%	—	—
Headcount growth	—	▲40.4%	—	—
Balance sheet — indirect signals, not revenue
Cash at bank	£312k	£140k	£571k	£413k
Net assets	£3.2m	£4.1m	£5m	−£2m
Fixed assets	£1.6m	£2.4m	£2.2m	£1.9m
Current assets	£7.1m	£9.8m	£8.9m	£16.8m
Debtors	£2.1m	£3.8m	£4.2m	£1.7m
Deferred income	£237k	£71.9k	£22.7k	£99.5k
Source	FullAccounts · bulk data Jul 2024	FullAccounts · bulk data Jul 2024	FullAccounts · bulk data Apr 2025	FullAccounts · bulk data Sep 2026

Derived from the latest filing

How the business works

Profit margin: −44.9%; Profit ÷ revenue.
Gross margin: 1.3%; 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: 12%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: 0.6%; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 11%; 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 £413k
Headcount: —; Now 0
Deferred income: —; Now £99.5k
Fixed assets: —; Now £1.9m

Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.

Corporate ownership

Group structure

Ownership chain

Motorola Solutions, Inc (registered outside the UK register)ultimate parent75–100%
Motorola Solutions UK Holding One Limited75–100%
Motorola Solutions International Holding Limited75–100%
The Silent Sentinel Group Limited75–100%
Silent Sentinel Limitedthis company

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

Sister companies (1)

Sentinel Engineering LimitedFigures not disclosed

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 −£6.9m), from the Companies House accounts bulk data published Sep 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.