How much does Silurian Security Services Limited make?

Silurian Security Services Limited reported revenue of £4.2m and £488k profit in the year to 31 Mar 2025, according to its accounts filed at Companies House.

How many employees does Silurian Security Services Limited have?

Silurian Security Services Limited reported an average of 0 employees in the year to 31 Mar 2025.

Is Silurian Security Services Limited profitable?

Yes — Silurian Security Services Limited reported a profit of £488k in the year to 31 Mar 2025.

Company No. 04262091 · Incorporated 31 Jul 2001

Silurian Security Services Limited

Registered name: SILURIAN SECURITY SERVICES LIMITED

Silurian Security Services Limited made £4.2m revenue and £488k profit in the year to 31 Mar 2025.

Silurian Security Services Limited’s revenue fell 1% to £4.2m in the year to 31 Mar 2025, with £488k profit and 0 employees. The company is classified under “private security activities” and is based in West Glam; we hold 4 years of its filed accounts.

Full P&L filedSection N · Administrative and support servicesSIC 80100Private security activities

Status: Active
Location: West Glam, Wales
Age: 25 yrs · since 2001
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.

Latest accounts · year to 31 Mar 2025

Key figures

IndependentSmall teamBoring industryCash flow filed

Revenue

£4.2m

Growth ▼0.8%

Profit

£488k

Growth ▼33.3%

Profit margin

11.5%

Gross 81.2%

Employees

Change ▼100%

Profit / employee

—

Profitable streak

4yrs

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 Mar 2022	31 Mar 2023	31 Mar 2024	31 Mar 2025
Disclosure	Full P&L	Full P&L	Full P&L	Full P&L
Profit & loss
Revenue (turnover)	£5.2m	£4.5m	£4.3m	£4.2m
Cost of sales	£3.6m	£2.8m	£1.8m	£798k
Gross profit	£1.5m	£1.7m	£2.4m	£3.4m
Operating profit	£791k	£729k	£732k	£651k
Profit before tax	£791k	£729k	£732k	£651k
Profit after tax	£697k	£601k	£732k	£488k
Profit (best available)	£697k	£601k	£732k	£488k
Staff costs	£719k	£1.1m	£1.9m	£3.2m
Employees (average)	—	36	90	0
Ratios
Profit margin	13.5%	13.3%	17.1%	11.5%
Gross margin	29.7%	36.8%	57.2%	81.2%
Revenue per employee	—	£125k	£47.5k	—
Profit per employee	—	£16.7k	£8.1k	—
Cash conversion	133.9%	62%	65.4%	147.8%
Growth (year on year)
Revenue growth	—	▼12.8%	▼5.2%	▼0.8%
Profit growth	—	▼13.8%	▲21.8%	▼33.3%
Headcount growth	—	—	▲150%	▼100%
Balance sheet — indirect signals, not revenue
Cash at bank	£951k	£1.3m	£1.2m	£680k
Net assets	£1.4m	£2m	£2.7m	£1.5m
Fixed assets	£467k	£543k	£675k	£561k
Current assets	£1.3m	£2m	£2.3m	£1.2m
Debtors	£355k	£739k	£1.1m	£480k
Cash from operations	£1.1m	£452k	£479k	£962k
Source	FullAccounts · bulk data Dec 2023	FullAccounts · bulk data Dec 2023	FullAccounts · bulk data Dec 2024	FullAccounts · bulk data Dec 2025

Derived from the latest filing

How the business works

Profit margin: 11.5%; Profit ÷ revenue.
Gross margin: 81.2%; Gross profit ÷ revenue. High for software and services.
Revenue per employee: —; Revenue ÷ average employees.
Profit per employee: —; Profit ÷ average employees.
Cash conversion: 147.8%; Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
Fixed assets ÷ revenue: 13.2%; Capital intensity. Low = capital-light, cheaper to start.
Deferred income ÷ revenue: —; Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
Debtors ÷ revenue: 11.3%; 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: ▼46%; Now £1.5m
Cash at bank: ▼43%; Now £680k
Headcount: ▼100%; Now 0
Deferred income: —; Now —
Fixed assets: ▼17%; Now £561k

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Sources

Companies House profile Filing history & original accounts

Latest figures from FullAccounts for the year to 31 Mar 2025 (profit £488k), from the Companies House accounts bulk data published Dec 2025. 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.