WARTSILA WATER SYSTEMS LIMITED
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Next accounts due
2026-09-30 (in 4mo)
Last filed for 2024-12-31
Confirmation statement due
2026-08-07 (in 3mo)
Last made up 2025-07-24
Watchouts
None on the register
Cash
£25K
-16.7% vs 2023
Net assets
-£3M
-540.9% vs 2023
Employees
104
+9.5% vs 2023
Profit before tax
-£4M
-237.4% vs 2023
Name history
Renamed 5 times since incorporation — the current trading name was adopted 2026-05-12
- WARTSILA WATER SYSTEMS LIMITED 2026-05-12 → present
- WARTSILA WATER SYSTEMS LIMITED 2012-04-19 → 2026-05-12
- HAMWORTHY WATER SYSTEMS LIMITED 2006-09-14 → 2012-04-19
- HAMWORTHY WASTEWATER SYSTEMS LIMITED 2004-08-02 → 2006-09-14
- HAMWORTHY KSE LIMITED 1999-02-09 → 2004-08-02
- HAMWORTHY PUMPS & COMPRESSORS LIMITED 1962-01-18 → 1999-02-09
Net assets
2-year trend · vs Industrials median
Accounts
2-year trend · latest reflected 2024-12-31
| Metric | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Turnover | £47,952,000 | £44,967,000 | |
| Operating profit | £3,343,000 | -£4,364,000 | |
| Profit before tax | £3,207,000 | -£4,406,000 | |
| Net profit | £2,371,000 | -£3,186,000 | |
| Cash | £30,000 | £25,000 | |
| Total assets less current liabilities | £3,206,000 | £7,944,000 | |
| Net assets | £589,000 | -£2,597,000 | |
| Equity | £589,000 | -£2,597,000 | |
| Average employees | 95 | 104 | |
| Wages | £5,010,000 | £5,598,000 |
Values shown as filed in the company's annual accounts. — indicates the figure wasn't present under that line item in that period. About these numbers
Ratios
Computed from the line items above — sparklines read oldest → newest
| Ratio | Trend | 2023-12-31 | 2024-12-31 |
|---|---|---|---|
| Operating margin | 7.0% | -9.7% | |
| Net margin | 4.9% | -7.1% | |
| Return on capital employed | 104.3% | -54.9% | |
| Gearing (liabilities / total assets) | 98.0% | 107.5% | |
| Current ratio | 1.06x | 1.25x | |
| Interest cover | 9.26x | -23.09x |
Margins divide P&L lines by turnover. Gearing is liabilities over total assets. Current ratio is current assets over creditors falling due within one year. Interest cover is operating profit over absolute finance costs. Sector-distribution context coming next.
Audit & accounting basis
- Accounting basis
- FRS 101
- Reporting scope
- Standalone (parent only)
- Auditor
- Azets Audit Services Limited
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The demand for wastewater treatment systems in the maritime industry is increasing significantly due to regulatory pressure, heightened environmental awareness, technological advancements, and the rise in global maritime trade and cruise tourism. There is ample evidence to support the Board's confidence in the Company's satisfactory performance in the coming years.”
Significant events
- “In terms of financial performance, the Company reported an after-tax loss of £3,186 for the year ending 31 December 2024. Regarding their financial position, the Company's net liability stood at £2,597 in 2024.”
- “During the reporting period, the company recognised a provision of £9.8 million in respect of certain remedial works.”
- “The ultimate parent company, Wartsila Corporation, has expressed its intention to divest Wartsila Water Systems Limited along with other non-core marine business entities.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
3 active · 24 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| DING, Christina | Secretary | 2023-10-06 | — | — |
| BERTRAM, Bernd | Director | 2025-04-01 | Aug 1973 | Danish |
| SCOTT, Fraser | Director | 2020-09-14 | Oct 1968 | British |
Show 24 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| ALDEN, Gill | Secretary | 2022-07-01 | 2023-10-06 |
| COLEMAN, Gary Paul | Secretary | 2018-02-08 | 2018-02-26 |
| CROMPTON, Paul | Secretary | 1995-03-31 | 2006-04-01 |
| DAWES, Peter Graham | Secretary | 2006-04-01 | 2018-02-08 |
| RICHARDSON, Geoffrey | Secretary | — | 1995-03-31 |
| BENTLEY, Allan | Director | 2002-04-01 | 2008-04-04 |
| BURKE, Rex | Director | — | 1995-07-25 |
| CAHILL, John Antony | Director | — | 1992-09-30 |
| CROMPTON, Paul | Director | 1995-03-31 | 2012-04-18 |
| DE GRUIJTER, Tamara | Director | 2020-09-14 | 2025-04-01 |
| DERRICK, Kelvyn Garth | Director | 1995-03-31 | 2007-08-31 |
| DICKINSON, Andrew David | Director | 2018-02-20 | 2018-11-30 |
| HARFIELD, Walter Maurice | Director | — | 1994-06-30 |
| HELLUM, Geir | Director | 2018-02-20 | 2019-01-11 |
| HENSHAW, John | Director | 2019-08-12 | 2020-09-14 |
| KOPONEN, Timo | Director | 2012-04-18 | 2019-07-05 |
| KYTOLA, Juha Kaarlo | Director | 2012-06-15 | 2018-02-20 |
| LEHTINEN, Arto | Director | 2019-01-12 | 2022-08-31 |
| OATLEY, Jonathan Mark | Director | 2007-09-03 | 2012-06-15 |
| POWELL, John | Director | — | 1993-12-31 |
| RASMUSSEN, Erik | Director | 2019-01-12 | 2019-10-18 |
| RICHARDSON, Geoffrey | Director | — | 1995-03-31 |
| STEPHENSON, Catherine Nancy May | Director | 2022-09-01 | 2025-03-14 |
| THOMAS, Joseph, Dr | Director | 2008-04-04 | 2018-02-20 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Wartsila Corporation | Corporate entity | Significant influence | 2020-11-24 | Active |
| Wartsila Hamworthy Limited | Corporate entity | Shares 75–100% | 2016-04-06 | Ceased 2020-11-24 |
Filing timeline
Last 20 of 183 total filings
Material constitutional events — rename, articles re-file, resolution
- 2026-05-12 CERTNM Certificate change of name company PDF
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2026-05-12 | CERTNM | change-of-name | Certificate change of name company | |
| 2025-09-29 | AA | accounts | Accounts with accounts type full | |
| 2025-08-08 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-04-07 | AP01 | officers | Appoint person director company with name date | |
| 2025-04-03 | TM01 | officers | Termination director company with name termination date | |
| 2025-03-14 | TM01 | officers | Termination director company with name termination date | |
| 2025-03-07 | CH01 | officers | Change person director company with change date | |
| 2024-08-12 | AA | accounts | Accounts with accounts type full | |
| 2024-07-24 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-10-06 | AP03 | officers | Appoint person secretary company with name date | |
| 2023-10-06 | TM02 | officers | Termination secretary company with name termination date | |
| 2023-09-27 | AA | accounts | Accounts with accounts type full | |
| 2023-08-03 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-02-07 | AA | accounts | Accounts with accounts type full | |
| 2022-09-13 | CS01 | confirmation-statement | Confirmation statement with updates | |
| 2022-09-08 | AP01 | officers | Appoint person director company with name date | |
| 2022-09-08 | TM01 | officers | Termination director company with name termination date | |
| 2022-07-01 | AP03 | officers | Appoint person secretary company with name date | |
| 2022-06-20 | AA | accounts | Accounts with accounts type full | |
| 2021-12-04 | SH01 | capital | Capital allotment shares |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 3
- Capital events
- 0
- Officers appointed
- 0
- Officers resigned
- 0
last 12 months
last 24 months
last 12 months
last 12 months
Direct counts from the register. No score, no rating — see the Filing timeline for the underlying events.
Year-on-year
FY2023 → FY2024 · period ending 2024-12-31 vs 2023-12-31
-
Turnover
-6.2%
£47,952,000 £44,967,000
-
Cash
-16.7%
£30,000 £25,000
-
Net assets
-540.9%
£589,000 -£2,597,000
-
Employees
+9.5%
95 104
-
Operating profit
-230.5%
£3,343,000 -£4,364,000
-
Profit before tax
-237.4%
£3,207,000 -£4,406,000
-
Wages
+11.7%
£5,010,000 £5,598,000
Each % is (latest − prior) ÷ |prior| for the line item as filed. The comparison is only shown when the latest and prior accounts cover broadly equal-length periods — short or long stubs (typical around incorporation or a year-end change) are suppressed rather than misrepresented. Lines a company doesn't report are omitted. About these numbers