MWH TREATMENT LIMITED
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Next accounts due
2026-12-31 (in 7mo)
Last filed for 2025-03-31
Confirmation statement due
2026-08-26 (in 3mo)
Last made up 2025-08-12
Watchouts
None on the register
Cash
£47M
+53% vs 2024
Net assets
£42M
+5.7% vs 2024
Employees
785
+11% vs 2024
Profit before tax
£6M
-19.1% vs 2024
Name history
Renamed 5 times since incorporation
- MWH TREATMENT LIMITED 2018-12-05 → present
- STANTEC TREATMENT LIMITED 2017-12-29 → 2018-12-05
- MWH TREATMENT LIMITED 2010-12-29 → 2017-12-29
- BIWATER TREATMENT LIMITED 1997-07-10 → 2010-12-29
- BIWATER EUROPE LIMITED 1993-01-01 → 1997-07-10
- BIWATER TREATMENT LIMITED 1980-12-17 → 1993-01-01
Net assets
2-year trend · vs Industrials median
Accounts
2-year trend · latest reflected 2025-04-06
| Metric | Trend | 2024-03-31 | 2025-04-06 |
|---|---|---|---|
| Turnover | £346,192,000 | £431,031,000 | |
| Operating profit | £3,601,000 | £1,641,000 | |
| Profit before tax | £7,484,000 | £6,056,000 | |
| Net profit | £3,852,000 | £6,275,000 | |
| Cash | £30,774,000 | £47,085,000 | |
| Total assets less current liabilities | £47,488,000 | £50,433,000 | |
| Net assets | £39,976,000 | £42,251,000 | |
| Equity | £39,976,000 | £42,251,000 | |
| Average employees | 707 | 785 | |
| Wages | £43,572,000 | £51,399,000 |
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 | 2024-03-31 | 2025-04-06 |
|---|---|---|---|
| Operating margin | 1.0% | 0.4% | |
| Net margin | 1.1% | 1.5% | |
| Return on capital employed | 7.6% | 3.3% | |
| Current ratio | 1.18x | 1.15x | |
| Interest cover | 9.81x | 3.06x |
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 102
- Reporting scope
- Standalone (parent only)
- Auditor
- BDO LLP
- Audit opinion
- Unqualified (clean)
- Going concern
- Affirmed
“The Directors believe that the Group will continue to manage its business risks successfully despite uncertain economic conditions in some business sectors and countries. After making enquiries, the Directors have a reasonable expectation that the Company and the Group have adequate resources to continue to operate for the foreseeable future, being a period of at least twelve months after the date on which the report and financial statements are signed. Accordingly, they have continued to adopt a going concern basis in the preparation of the annual report and financial statements.”
Group structure
- MWH TREATMENT LIMITED · parent
- MWH Farrer Limited 100%
- E5 25%
- Bamford 50%
- SMB 33%
- Advance-plus 50%
- CMDP 50%
- ESD SR15 33%
- ESD SR21 50%
- MEPS 50%
Significant events
- “The Company benefits from being a party to some significant long term AMP framework contracts and is successful in working with the majority of water authorities in the UK. Consequently, the Company benefits from a large order book to facilitate a strong platform for growth.”
- “The business can face external risks from factors such as inflation, market price fluctuations for key raw materials and competition for key resources. The length and size of some projects and reliance on forecasting accuracy across all projects can also represent a risk to business performance. However, the business aims to mitigate this by implementing a robust and regular review processes.”
Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers
People
6 active · 51 resigned
| Name | Role | Appointed | Born | Nationality |
|---|---|---|---|---|
| EVANS, Sally | Secretary | 2021-09-27 | — | — |
| BRESNAN, Paul James | Director | 2015-02-23 | Aug 1966 | British |
| GOODACRE, Ian Robert, Dr | Director | 2021-08-31 | May 1972 | British |
| HERLIHY, Francis | Director | 2025-04-01 | Jan 1966 | British |
| RYDER, Alasdair Alan | Director | 2021-08-31 | Sep 1961 | British |
| SMITH, Mark William | Director | 2021-08-31 | Jul 1967 | Irish |
Show 51 resigned officers
| Name | Role | Appointed | Resigned |
|---|---|---|---|
| BRESNAN, Paul James | Secretary | 2018-11-02 | 2019-03-06 |
| DODD, Norman Eric | Secretary | 2000-06-13 | 2010-12-23 |
| FERRAR, Anthony John David | Secretary | 1993-01-01 | 1993-07-22 |
| HALL-STURT, Victoria Jayne | Secretary | 2011-02-18 | 2018-11-02 |
| KERSLAKE, John Ernest Alfred | Secretary | — | 1997-10-24 |
| MALONEY, Gina Paola | Secretary | 2012-11-05 | 2018-08-03 |
| MCLURGH, David Brian, Dr | Secretary | 2019-03-06 | 2021-09-27 |
| MOIST, Sarah Ann | Secretary | 2010-12-23 | 2016-12-01 |
| SMITH, Kenneth | Secretary | 1997-10-01 | 2000-06-13 |
| ABRAHAM, John Patrick | Director | 2011-02-17 | 2015-02-17 |
| ABRAHAM, John Patrick | Director | 2001-12-01 | 2010-12-23 |
| ADAMS JR, Joseph Daniel | Director | 2010-12-23 | 2012-04-05 |
| ALPERN, Paul Jeremy David | Director | 2017-11-02 | 2018-11-02 |
| ARMSTRONG, Bernard John | Director | — | 2010-12-23 |
| BARNES, David Griffin | Director | 2016-07-07 | 2017-07-18 |
| BARNES, David Griffin | Director | 2010-12-23 | 2012-04-24 |
| BENFIELD, Douglas Charles | Director | — | 1993-03-31 |
| CROOK, Neville | Director | — | 1994-06-06 |
| DRAPER, Abigail Sarah | Director | 2021-08-31 | 2025-03-31 |
| FERRAR, Anthony John David | Director | 1993-01-01 | 1993-07-22 |
| GIULIANI, Francesco | Director | 2020-05-21 | 2021-08-31 |
| GLEDHILL, Paul Anthony | Director | 2015-02-20 | 2016-06-27 |
| GOSCOMB, Christopher Roderick John | Director | 1996-04-23 | 1997-10-02 |
| GREEN, Neil Anthony | Director | 2002-04-02 | 2002-08-30 |
| GREENHALGH, Spencer Harold, Dr | Director | 1997-10-01 | 2000-01-31 |
| HALL-STURT, Victoria Jayne | Director | 2010-12-23 | 2011-02-18 |
| HULL, Christopher John | Director | 2004-02-01 | 2010-12-23 |
| INGHAM, Roger | Director | 1997-10-20 | 2001-12-18 |
| JAREMA, Peter John | Director | 2001-02-01 | 2006-03-31 |
| KUIKEN, James Graham | Director | 2013-08-30 | 2016-06-15 |
| LAVOIE, Blair Michael | Director | 2012-04-24 | 2021-08-31 |
| LEE, James | Director | 2018-11-02 | 2021-08-31 |
| MARSH, David Thomas, Mr. | Director | 2006-04-01 | 2009-05-31 |
| MCAULAY, Ian James | Director | 2012-04-05 | 2013-08-30 |
| NUTTALL, Rolfe | Director | 2015-02-17 | 2017-12-11 |
| O'REILLY, Kevin David | Director | 2013-08-27 | 2014-06-18 |
| O'REILLY, Kevin David | Director | 2006-04-01 | 2010-12-23 |
| RENSHAW, Geoffrey Mark | Director | — | 1996-04-30 |
| ROBINSON, Peter Lee | Director | 1993-03-31 | 1995-04-25 |
| ROBINSON, Peter Lee | Director | — | 1992-11-11 |
| SMITH, Alan | Director | — | 1994-12-31 |
| SMITH, Kenneth | Director | 1997-10-01 | 2000-06-13 |
| SPENCE, John Alastair | Director | 1993-01-01 | 1994-06-06 |
| STANDRING, Thomas John | Director | 2006-04-01 | 2010-12-23 |
| STUDHOLME, Mark | Director | 2000-01-01 | 2010-12-23 |
| TOWNSEND, Allan Edward | Director | 1997-10-13 | 1999-01-31 |
| WHITE, David Frederick Wigram | Director | 2009-04-01 | 2009-05-31 |
| WHITE, David Frederick Wigram | Director | 1996-04-23 | 2000-05-24 |
| WILLIAMS, Anthony Vernon | Director | 2001-02-01 | 2006-03-31 |
| WILSON, Andrew Charles | Director | 2017-07-18 | 2017-11-02 |
| WILSON, Mark | Director | 2006-04-01 | 2009-03-31 |
Ownership
Persons with significant control
| Name | Kind | Nature of control | Notified | Status |
|---|---|---|---|---|
| Mwh Uk Acquisitions Limited | Corporate entity | Shares 75–100%, Voting 75–100%, Appoints directors | 2018-11-02 | Active |
| Stantec Treatment Holding Limited | Corporate entity | Shares 75–100%, Voting 75–100%, right-to-appoint-and-remove-directors-as-firm, significant-influence-or-control-as-firm | 2016-04-06 | Ceased 2018-11-02 |
Filing timeline
Last 20 of 289 total filings
Material constitutional events — rename, articles re-file, resolution
- 2022-02-14 RESOLUTIONS Resolution
- 2022-02-14 MA Memorandum articles
| Date | Type | Category | Description | |
|---|---|---|---|---|
| 2025-10-16 | AA | accounts | Accounts with accounts type full | |
| 2025-08-12 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2025-04-04 | AA | accounts | Accounts with accounts type full | |
| 2025-04-03 | AP01 | officers | Appoint person director company with name date | |
| 2025-04-02 | TM01 | officers | Termination director company with name termination date | |
| 2024-11-05 | CH01 | officers | Change person director company with change date | |
| 2024-09-16 | MR01 | mortgage | Mortgage create with deed with charge number charge creation date | |
| 2024-08-09 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-10-17 | AA | accounts | Accounts with accounts type full | |
| 2023-07-31 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2023-07-26 | PSC05 | persons-with-significant-control | Change to a person with significant control | |
| 2023-07-26 | CH01 | officers | Change person director company with change date | |
| 2023-01-06 | AA | accounts | Accounts with accounts type full | |
| 2022-07-26 | CS01 | confirmation-statement | Confirmation statement with no updates | |
| 2022-07-25 | CH01 | officers | Change person director company with change date | |
| 2022-07-25 | CH01 | officers | Change person director company with change date | |
| 2022-02-14 | RESOLUTIONS | resolution | Resolution | |
| 2022-02-14 | MA | incorporation | Memorandum articles | |
| 2021-12-30 | MR01 | mortgage | Mortgage create with deed with charge number charge creation date | |
| 2021-11-17 | MR04 | mortgage | Mortgage satisfy charge full |
Public-record activity
Raw counts from Companies House — last 12–24 months
- Filings
- 2
- 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
FY2024 → FY2025 · period ending 2025-04-06 vs 2024-03-31
-
Turnover
+24.5%
£346,192,000 £431,031,000
-
Cash
+53%
£30,774,000 £47,085,000
-
Net assets
+5.7%
£39,976,000 £42,251,000
-
Employees
+11%
707 785
-
Operating profit
-54.4%
£3,601,000 £1,641,000
-
Profit before tax
-19.1%
£7,484,000 £6,056,000
-
Wages
+18%
£43,572,000 £51,399,000
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