Ark Mechanical and Electrical Services Limited
Registered name: ARK MECHANICAL AND ELECTRICAL SERVICES LIMITED
Part of JRL Group Holdings Limited groupArk Mechanical and Electrical Services Limited made £123m revenue and £4.8m profit in the year to 30 Apr 2025.
Ark Mechanical and Electrical Services Limited’s revenue was £123m in the year to 30 Apr 2025, with £4.8m profit and 103 employees. The company is classified under “construction of commercial buildings” and is based in Borehamwood; we hold 2 years of its filed accounts.
- Status
- Active
- Location
- Borehamwood, East of England
- Age
- 13 yrs · since 2013
- 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: “JRL Group Holdings Limited”
Key figures
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Dec 2023 | 30 Apr 2025 |
|---|---|---|
| Disclosure | Full P&L | Full P&L |
| Profit & loss | ||
| Revenue (turnover) | £112m | £123m |
| Cost of sales | £104m | £108m |
| Gross profit | £8.1m | £14.8m |
| Operating profit | £2.2m | £6.3m |
| Profit before tax | £2.2m | £6.3m |
| Profit after tax | £1.6m | £4.8m |
| Profit (best available) | £1.6m | £4.8m |
| Staff costs | £8.4m | £11.6m |
| Employees (average) | 109 | 103 |
| Ratios | ||
| Profit margin | 1.4% | 3.9% |
| Gross margin | 7.2% | 12% |
| Revenue per employee | £1m | £1.2m |
| Profit per employee | £14.6k | £46.4k |
| Balance sheet — indirect signals, not revenue | ||
| Cash at bank | £4.8m | £5.4m |
| Net assets | £14.9m | £19.7m |
| Fixed assets | £49k | £33k |
| Current assets | £52.1m | £54.4m |
| Debtors | £66k | £67k |
| Deferred income | £12.9m | £11.4m |
| Source | FullAccounts · bulk data Jan 2026 | FullAccounts · bulk data Jan 2026 |
How the business works
- Profit margin
- 3.9%
- Profit ÷ revenue.
- Gross margin
- 12%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £1.2m
- Revenue ÷ average employees.
- Profit per employee
- £46.4k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 0%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 9.3%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 0.1%
- 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
- —
- Now £19.7m
- Cash at bank
- —
- Now £5.4m
- Headcount
- —
- Now 103
- Deferred income
- —
- Now £11.4m
- Fixed assets
- —
- Now £33k
Deferred income is reported together with accruals in this filing (“accruals and deferred income”), so it is an approximate signal only.
Group structure
Ownership chain
- JRL Group Holdings Limitedultimate parent75–100%
- JRL Group Limited75–100%
- Ark Mechanical and Electrical Services Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (28)
- Midgard LtdRev. £580m · Profit −£11.6m
- J. Reddington LtdRev. £298m · Profit −£5.7m
- McMullen Facades LimitedRev. £121m · Profit −£11.7m
- Thames Reinforcements LimitedRev. £65.5m · Profit £693k
- Midgard City LimitedRev. £62.8m · Profit −£3.3m
- London Tower Crane Hire & Sales LimitedRev. £57.7m · Profit £5.5m
- JRL Modular LtdRev. £20.2m · Profit −£5.2m
- JRL Environmental LimitedRev. £14.3m · Profit −£1.1m
- Anglo Swiss Façade Design LimitedFigures not disclosed
- Elstree Civil Engineering LimitedFigures not disclosed
- JRL Access LimitedFigures not disclosed
- JRL Civil Engineering LimitedFigures not disclosed
- JRL Demolition LimitedFigures not disclosed
- JRL Drylining LimitedFigures not disclosed
- JRL GH Facades LimitedFigures not disclosed
- JRL Plant and Logistics LimitedFigures not disclosed
- JRL Structures LimitedFigures not disclosed
- JRL Trading (3) LtdFigures not disclosed
- London Concrete Pumping LimitedFigures not disclosed
- Midgard Design Services LtdFigures not disclosed
- Midgard Public Sector LimitedFigures not disclosed
- Quantum Gate LimitedFigures not disclosed
- Slipstructures LimitedFigures not disclosed
- Stair Master LtdFigures not disclosed
- Trent Precast Concrete LimitedFigures not disclosed
- Trent Reinforcements LtdFigures not disclosed
- UK Facades LimitedFigures not disclosed
- Woodland Environmental LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
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- Revenue
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- Profit
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- Walters U.K. LimitedHirwaun, Aberdare · Construction of commercial buildings
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- Profit
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- Barnwood Group LimitedConstruction of commercial buildings
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- Walter Lilly & Co. LimitedLondon · Construction of commercial buildings
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- Barnwood LimitedConstruction of commercial buildings
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Sources
Latest figures from FullAccounts for the year to 30 Apr 2025 (profit £4.8m), from the Companies House accounts bulk data published Jan 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.