Custom Security Group Limited
Registered name: CUSTOM SECURITY GROUP LIMITED
Part of Carp Topco Limited groupCustom Security Group Limited made a £257 loss in the year to 31 Mar 2025 (revenue not disclosed).
Custom Security Group Limited reported a loss of £257 in the year to 31 Mar 2025; its revenue was not disclosed. It had 5 employees. The company is classified under “private security activities” and is based in Hertford; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Hertford, East of England
- Age
- 21 yrs · since 2005
- 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.
Key figures
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.
Financial history
| Year to | 30 Apr 2022 | 30 Apr 2023 | 30 Apr 2024 | 31 Mar 2025 |
|---|---|---|---|---|
| Disclosure | Profit only | Profit only | Profit only | Profit only |
| Profit & loss | ||||
| Revenue (turnover) | — | — | — | — |
| Profit after tax | £1.2m | −£52.7k | −£323 | −£257 |
| Profit (best available) | £1.2m | −£52.7k | −£323 | −£257 |
| Employees (average) | 0 | 0 | 0 | 5 |
| Ratios | ||||
| Profit margin | — | — | — | — |
| Profit per employee | — | — | — | −£51 |
| Growth (year on year) | ||||
| Profit growth | — | ▼104.5% | — | — |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £20k | £16.3k | £10.9k | £40.3k |
| Net assets | £136k | £83.5k | £96.8k | £142k |
| Current assets | £58.6k | £56.6k | £64.7k | £53.9k |
| Debtors | £38.6k | £0 | £53.8k | £13.6k |
| Source | FullAccounts · bulk data Jan 2024 | FullAccounts · bulk data Jan 2024 | FullAccounts · bulk data Feb 2025 | FullAccounts · bulk data Dec 2025 |
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
- −£51
- 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.
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
- ▲47%
- Now £142k
- Cash at bank
- ▲269%
- Now £40.3k
- Headcount
- —
- Now 5
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Ownership chain
- Carp Topco Limitedultimate parent75–100%
- Carp Midco Limited75–100%
- Andwis Group Limited75–100%
- Custom Security Group Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Subsidiaries (2)
- Custom Security Solutions LimitedRev. £13.9m · Profit £803k
- Custom Intelligent Security LimitedFigures not disclosed
Sister companies (27)
- Fire and Security Holdings LimitedRev. £34.6m · Profit −£4.2m
- Hesis LimitedRev. £22.2m · Profit £563k
- Rock Compliance Holdings LimitedRev. £19.8m · Profit −£4.1m
- Spl2014 LimitedRev. £16.1m · Profit £927k
- Andwis Entrances LimitedFigures not disclosed
- Andwis Fire & Security Holdco LimitedFigures not disclosed
- Ascot Doors (Service) LimitedFigures not disclosed
- Aspect Lifts LtdFigures not disclosed
- Concept Elevators (Holdings) LimitedRev. — · Profit £828k
- CPS Building Services LimitedFigures not disclosed
- Dab Lift & Electrical Services LimitedFigures not disclosed
- E.c.s.g. LimitedFigures not disclosed
- Elliott Environmental Services LimitedFigures not disclosed
- Elserv LimitedFigures not disclosed
- Lucca Holdings LimitedFigures not disclosed
- Meesons Futures LimitedRev. — · Profit £617k
- Mies Facilities Management LtdFigures not disclosed
- Oracle Solutions Holdings LtdFigures not disclosed
- Raveningham Holdings LimitedFigures not disclosed
- Silas Group LimitedFigures not disclosed
- Statutory Support Services (UK) LimitedFigures not disclosed
- Synecore LtdFigures not disclosed
- Tri Management LimitedFigures not disclosed
- Turnpower Services LimitedFigures not disclosed
- Unique Lifts LimitedFigures not disclosed
- Watertite Heating LimitedFigures not disclosed
- Wessex Group LimitedRev. — · Profit £994k
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from FullAccounts for the year to 31 Mar 2025 (profit −£257), 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.