A.e.s. Engineering Limited
Registered name: A.E.S. ENGINEERING LIMITED
A.e.s. Engineering Limited made £280m revenue and £46.6m profit in the year to 31 Dec 2025.
A.e.s. Engineering Limited’s revenue grew 3% to £280m in the year to 31 Dec 2025, with £46.6m profit. The company is classified under “manufacture of other general-purpose machinery” and is based in Mill Close Rotherham; we hold 3 years of its filed accounts.
- Status
- Active
- Location
- Mill Close Rotherham, Yorkshire and The Humber
- Age
- 81 yrs · since 1945
- Type
- Private Limited Company
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 | 31 Dec 2024 | 31 Dec 2025 |
|---|---|---|---|
| Disclosure | Full P&L | Full P&L | Full P&L |
| Profit & loss | |||
| Revenue (turnover) | £260m | £271m | £280m |
| Cost of sales | — | £82.2m | £82.4m |
| Operating profit | £55.3m | £58.3m | £60.2m |
| Profit before tax | £56.4m | £59m | £60.6m |
| Profit after tax | £43.4m | £43.8m | £46.6m |
| Profit (best available) | £43.4m | £43.8m | £46.6m |
| Employees (average) | — | — | — |
| Ratios | |||
| Profit margin | 16.7% | 16.2% | 16.7% |
| Growth (year on year) | |||
| Revenue growth | — | ▲3.9% | ▲3.4% |
| Profit growth | — | ▲1% | ▲6.5% |
| Balance sheet — indirect signals, not revenue | |||
| Net assets | — | — | — |
| Source | Accounts · bulk data Jun 2025 | Accounts · bulk data Jun 2025 | Accounts · bulk data May 2026 |
How the business works
- Profit margin
- 16.7%
- Profit ÷ revenue.
- Gross margin
- —
- Gross profit ÷ revenue. High for software and services.
- Revenue per employee
- —
- Revenue ÷ average employees.
- Profit per employee
- —
- 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
- —
- Now —
- Cash at bank
- —
- Now —
- Headcount
- —
- Now —
- Deferred income
- —
- Now —
- Fixed assets
- —
- Now —
Group structure
Subsidiaries (10)
- A.e.s Engineering Employee Trust LimitedFigures not disclosed
- Aesseal (MCK) Ltd.Figures not disclosed
- Aesseal Ireland LtdFigures not disclosed
- Aesseal Marine PLCRev. — · Profit £103k
- Aesseal PLCFigures not disclosed
- Avt Reliability LtdFigures not disclosed
- Avtpump LimitedFigures not disclosed
- Ledmore Estates LimitedFigures not disclosed
- Marine Sealing Services LimitedFigures not disclosed
- Vulcan Engineering LimitedFigures not disclosed
Minority corporate shareholders
- 3I Investments PLC 25–50%
- 3I Group PLC 25–50%
From the Persons with Significant Control register (corporate controllers only).
Similar profitable businesses
Sources
Latest figures from accounts for the year to 31 Dec 2025 (profit £46.6m), from the Companies House accounts bulk data published May 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.