Colchester Fuel Injection Limited
Registered name: COLCHESTER FUEL INJECTION LIMITED
Part of Merlin Diesel Holdings Limited groupColchester Fuel Injection Limited made £199k profit in the year to 31 Jul 2025 (revenue not disclosed).
Colchester Fuel Injection Limited reported £199k profit in the year to 31 Jul 2025, down 39% on the year before; its revenue was not disclosed. It had 34 employees. The company is classified under “manufacture of other transport equipment” and is based in Essex; we hold 4 years of its filed accounts.
- Status
- Active
- Location
- Essex, East of England
- Age
- 50 yrs · since 1976
- 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 | 31 Jul 2022 | 31 Jul 2023 | 31 Jul 2024 | 31 Jul 2025 |
|---|---|---|---|---|
| Disclosure | No P&L | No P&L | Profit only | Profit only |
| Profit & loss | ||||
| Revenue (turnover) | — | — | — | — |
| Profit after tax | — | — | £326k | £199k |
| Profit (best available) | — | — | £326k | £199k |
| Employees (average) | 37 | 35 | 33 | 34 |
| Ratios | ||||
| Profit margin | — | — | — | — |
| Profit per employee | — | — | £9.9k | £5.9k |
| Growth (year on year) | ||||
| Profit growth | — | — | — | ▼39% |
| Headcount growth | — | — | ▼5.7% | ▲3% |
| Balance sheet — indirect signals, not revenue | ||||
| Cash at bank | £67.9k | £301k | £207k | £214k |
| Net assets | £478k | £951k | £1.3m | £1.8m |
| Fixed assets | £214k | £280k | £255k | £196k |
| Current assets | £1.1m | £1.2m | £1.3m | £1.4m |
| Debtors | £363k | £369k | £490k | £393k |
| Source | FullAccounts · bulk data Apr 2024 | FullAccounts · bulk data Apr 2024 | FullAccounts · bulk data Feb 2025 | FullAccounts · bulk data Apr 2026 |
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
- £5.9k
- 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
- ▲36%
- Now £1.8m
- Cash at bank
- ▲3%
- Now £214k
- Headcount
- ▲3%
- Now 34
- Deferred income
- —
- Now —
- Fixed assets
- ▼23%
- Now £196k
Group structure
Ownership chain
- Merlin Diesel Holdings Limitedultimate parent75–100%
- Colchester Fuel Injection Limitedthis company
Bands show the share of ownership each company holds in the one below it.
Sister companies (3)
- Merlin Diesel Systems LtdRev. £64.3m · Profit £5.6m
- Feather Diesel Services LimitedFigures not disclosed
- Tyne Electro Diesel LimitedFigures not disclosed
From the Persons with Significant Control register (corporate controllers only).
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Sources
Latest figures from FullAccounts for the year to 31 Jul 2025 (profit £199k), from the Companies House accounts bulk data published Apr 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.