Red Engineering Design Limited
Registered name: RED ENGINEERING DESIGN LIMITED
Part of Engie Impact Belgium Sa groupRed Engineering Design Limited made £77.4m revenue and £1.6m profit in the year to 31 Dec 2024.
Red Engineering Design Limited’s revenue grew 11% to £77.4m in the year to 31 Dec 2024, with £1.6m profit and 380 employees. The company is classified under “other engineering activities” and is based in London; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- London, London
- Age
- 21 yrs · since 2004
- 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
Badges are automated estimates derived from the filed figures — not statements of fact about the company.
Financial history
| Year to | 31 Dec 2021 | 31 Dec 2022 | 31 Dec 2023 | 31 Dec 2024 |
|---|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L | Full P&L |
| Profit & loss | ||||
| Revenue (turnover) | £45.9m | £56m | £69.8m | £77.4m |
| Cost of sales | £31.4m | £36.5m | £53.4m | £56.2m |
| Gross profit | £14.5m | £19.4m | £16.4m | £21.2m |
| Operating profit | £3.4m | −£2m | −£4.9m | £2.1m |
| Profit before tax | £3m | −£1.7m | −£4.9m | £2m |
| Profit after tax | £2.5m | −£1.8m | −£3.5m | £1.6m |
| Profit (best available) | £2.5m | −£1.8m | −£3.5m | £1.6m |
| Staff costs | £19m | £24.2m | — | — |
| Employees (average) | 240 | 331 | 380 | 380 |
| Ratios | ||||
| Profit margin | 5.5% | −3.2% | −5% | 2.1% |
| Gross margin | 31.5% | 34.7% | 23.5% | 27.3% |
| Revenue per employee | £191k | £169k | £184k | £204k |
| Profit per employee | £10.5k | −£5.5k | −£9.1k | £4.3k |
| Growth (year on year) | ||||
| Revenue growth | — | ▲22.1% | ▲24.7% | ▲10.8% |
| Profit growth | — | ▼171.3% | — | — |
| Headcount growth | — | ▲37.9% | ▲14.8% | 0% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £4.8m | £5.7m | £3.9m | £2.5m |
| Net assets | £13.4m | £11.6m | £8.1m | £9.7m |
| Fixed assets | £1.1m | £2.2m | £2.1m | £1m |
| Current assets | £23.1m | £29.7m | £33.3m | £38m |
| Debtors | £7.1m | £10.5m | £13.1m | £12.6m |
| Deferred income | £5m | £10.5m | £9m | £14.6m |
| Source | FullAccounts · bulk data Feb 2024 | FullAccounts · bulk data Feb 2024 | FullAccounts · bulk data Dec 2025 | FullAccounts · bulk data Dec 2025 |
How the business works
- Profit margin
- 2.1%
- Profit ÷ revenue.
- Gross margin
- 27.3%
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- £204k
- Revenue ÷ average employees.
- Profit per employee
- £4.3k
- Profit ÷ average employees.
- Cash conversion
- —
- Cash generated from operations ÷ operating profit. Needs a cash-flow statement.
- Fixed assets ÷ revenue
- 1.3%
- Capital intensity. Low = capital-light, cheaper to start.
- Deferred income ÷ revenue
- 18.9%
- Customers paying upfront (subscriptions, deposits). Approximate when combined with accruals.
- Debtors ÷ revenue
- 16.3%
- 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
- ▲20%
- Now £9.7m
- Cash at bank
- ▼36%
- Now £2.5m
- Headcount
- 0%
- Now 380
- Deferred income
- ▲62%
- Now £14.6m
- Fixed assets
- ▼52%
- Now £1m
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
- Engie Impact Belgium Sa (registered outside the UK register)ultimate parent75–100%
- Red Group Holdings Limited75–100%
- Red Engineering Design Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (2)
- Power Efficiency Holdings LimitedFigures not disclosed
- Tractebel UK Engineering LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
- Comau U.K. LimitedRugby · Other engineering activities
- Revenue
- £71.7m
- Profit
- £9.1m
- Staff
- 57
- Maintenance & Contracting Services LtdBristol · Other engineering activities
- Revenue
- £61.1m
- Profit
- £4.1m
- Staff
- 105
- Fluence Energy UK LimitedLondon · Other engineering activities
- Revenue
- £102m
- Profit
- £10.3m
- Staff
- —
- Dalcour Maclaren LimitedBicester · Other engineering activities
- Revenue
- £48.6m
- Profit
- £2.4m
- Staff
- 618
- BPX Electro-Mechanical Company LimitedRothley · Other engineering activities
- Revenue
- £48m
- Profit
- £1.3m
- Staff
- 168
- Vaughan Engineering Services LimitedNewtownabbey · Other engineering activities
- Revenue
- £46.1m
- Profit
- £574k
- Staff
- 120
Sources
Latest figures from FullAccounts for the year to 31 Dec 2024 (profit £1.6m), from the Companies House accounts bulk data published Dec 2025. Spotted an error? Request a correction.
Updated from Companies House on 13 Oct 2026
Contains public sector information from Companies House licensed under the Open Government Licence v3.0. Data from Companies House, © Crown copyright. View the licence.