INTERNATIONAL WATER ASSOCIATION

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Next accounts due

2026-09-30 (in 4mo)

Last filed for 2024-12-31

Confirmation statement due

2026-07-27 (in 2mo)

Last made up 2025-07-13

Watchouts

None on the register

Cash

£6M

+65.3% vs 2023

Net assets

£5M

+27.4% vs 2023

Employees

+2% vs 2023

Profit before tax

£1M

+357.4% vs 2023

Name history

Renamed 1 time since incorporation

INTERNATIONAL WATER ASSOCIATION 1999-08-16 → present
THE INTERNATIONAL WATER ASSOCIATION 1998-07-13 → 1999-08-16

Net assets

2-year trend · vs Consumer Discretionary median

INTERNATIONAL WATER ASSOCIATION·Consumer Discretionary median · n=5592

Accounts

2-year trend · latest reflected 2024-12-31

Metric	2023-12-31	2024-12-31
Turnover	£6,180,250	£8,865,036
Operating profit	—	—
Profit before tax	-£396,591	£1,020,665
Net profit	-£328,599	£1,091,978
Cash	£3,550,618	£5,867,743
Total assets less current liabilities	£4,099,040	£5,191,018
Net assets	£3,979,040	£5,071,018
Equity	£3,979,040	£5,071,018
Average employees	51	52
Wages	£2,455,515	£2,541,041

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
Net margin		-5.3%	12.3%
Current ratio		1.86x	1.95x

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: Consolidated group
Auditor: Sayer Vincent LLP
Audit opinion: Unqualified (clean)
Going concern: Affirmed
“Trustees are confident that the Association possesses adequate resources to sustain operational continuity for the foreseeable future. This assessment incorporates an evaluation of the reserves as of 31 December 2024, along with financial forecasts extending for at least one year from the approval date of this report and financial statement.”

Group structure

INTERNATIONAL WATER ASSOCIATION · parent
1. IWA Publishing Limited 100% · England · Provision of publishing and information products and services to the international water supply and wastewater market.
2. IWA Conferences Limited 100% · England · Raise funds for the Charity through commercial sponsorship and exhibition activity in relation to the Association's congresses.
3. IWAT Science and Technology Private Limited 100% · India · Promoting the art and science of water management globally, by the encouragement of training, study and research in water management.
4. Nanjing IWA Science & Technology Co. Ltd 100% · China
5. IWA Solutions International Limited 100%
6. IWA Global Enterprises Limited 100%
7. IWA Africa · Kenya
8. IWAI Water Foundation · India

Significant events

“IWA World Water Congress & Exhibition held from 11-15 August in Toronto, Canada, attracting 7,000 participants.”
“Professor Hamanth Kasan assumed role of IWA President; Dr Rose Kaggwa elected Senior Vice President; Dr. Ir. Mohmad Asari bin Daud elected Vice President.”
“Adoption of a new Strategic Plan for 2025-2030 by the IWA Governing Assembly.”
“Expansion of global network with six new Governing Members, total 68.”
“Launch of IWA's LeaP Leadership Programme for Young Water Professionals, empowering 12 participants.”

Auditor, going-concern and subsidiary information is drawn from the narrative of the latest annual accounts. About these numbers

People

14 active · 82 resigned

Name	Role	Appointed	Born	Nationality
MURUGATHAS, Satkunam	Secretary	2012-12-12	—	—
FERNANDES, William	Director	2024-08-10	Dec 1957	Canadian
KAGGWA, Rose Christine, Dr	Director	2021-04-24	Jan 1969	Ugandan
KASAN, Hamanth Chotoo, Professor	Director	2023-09-16	Jan 1961	South African
KONE, Doulaye, Dr	Director	2024-08-10	Apr 1970	American
MASHWAMA, Jabulile	Director	2024-08-10	Aug 1971	Swazi
MOHAN, Sankaralingam, Professor	Director	2022-09-09	Feb 1959	Indian
MOLLENKOPF, Thomas Michael	Director	2014-09-26	Feb 1957	Australian
POCI, Elisabeta	Director	2022-09-09	Apr 1980	Albanian
POPA, Teodor	Director	2018-09-13	Jun 1967	Romanian
RATNAWEERA, Harsha Chandima, Dr	Director	2022-09-08	Jan 1962	Norwegian
TAKIZAWA, Satoshi, Professor	Director	2022-09-08	Apr 1959	Japanese
VAIRAVAMOORTHY, Kalanithy, Professor	Director	2017-09-25	Jul 1966	British
XIAOCHANG, Wang, Dr	Director	2021-04-24	Dec 1953	Chinese

Show 82 resigned officers

Name	Role	Appointed	Resigned
BIRCH JACKSON, Madeleine	Secretary	2006-02-22	2007-04-25
MILBURN, Anthony	Secretary	1998-07-13	2002-05-03
MURUGATHAS, Satkunam	Secretary	2007-04-25	2008-07-31
MURUGATHAS, Satkunam	Secretary	2001-06-01	2006-02-22
NICOLAOU, Andreas	Secretary	2000-01-10	2000-07-31
RATNAM, Edward Indran	Secretary	1999-10-20	1999-12-24
VAN OOSTROM, Armand	Secretary	2008-08-01	2012-12-12
CHETTLEBURGH INTERNATIONAL LIMITED	Corporate Nominee Secretary	1998-07-13	1998-07-13
ABDULLAH, Norhayati Binti	Director	2014-09-26	2018-09-13
ANDERSEN, Helle Kathrine	Director	2016-10-08	2021-04-24
ANUKULARMPHAI, Apichart	Director	2014-09-26	2016-10-07
BALLAY, Denis Bernard Henri	Director	1999-09-07	2001-10-10
BAPTISTA, Jaime	Director	2012-09-21	2016-10-07
BATH, Vincent John	Director	1999-09-07	2003-03-11
BERGKAMP, Ger	Director	2012-12-08	2017-03-31
BHEMBE, Peter Ndumiso	Director	2003-03-11	2006-03-08
BODE, Harro, Prof Dr Ing	Director	2006-03-08	2006-09-06
CABRERA ROCHERA, Enrique, Dr	Director	2012-09-21	2022-09-09
CIOMOS, Vasile, Dr	Director	2008-09-05	2012-09-21
CLOETE, Thomas Eugene, Professor	Director	2003-03-11	2006-09-06
DAIGGER, Glen, Dr	Director	2006-09-06	2016-10-07
DIA, Mamadou	Director	2012-09-21	2014-09-19
DIANE, D'Arras	Director	2010-09-24	2022-09-09
ELKASMI, Lalla Asma, Dr	Director	2018-09-13	2022-09-09
FAN, Xiaojun	Director	2014-09-26	2018-09-13
FARRIMOND, Mike, Dr	Director	2008-09-05	2012-09-21
FURUMAI, Hiroaki, Prof	Director	2012-09-21	2018-09-13
GARMAN, David Edward John, Dr	Director	1999-09-07	2014-09-19
GILBERT, Jerome B	Director	1999-09-07	2006-03-08
HAHN, Hermann, Professor Dr	Director	1999-09-07	2001-10-10
HENZE, Mogens	Director	1999-09-07	2007-03-18
HOOD, William Nicholas	Director	1999-09-07	2001-10-10
HULSHOF, Taede Cornelis	Director	2012-09-21	2016-10-07
JARDIN, Norbert, Prof	Director	2008-09-05	2012-09-21
JIMENEZ, Blanca, Dr	Director	2006-03-08	2008-09-05
JONES, Peter Joseph, Dr	Director	2008-09-05	2010-09-23
KASAN, Hamanth, Professor	Director	2016-10-08	2022-09-09
KASAN, Hamanth Chotoo, Prof	Director	2006-09-06	2010-09-23
KEINATH, Thomas Michael, Dean	Director	1999-09-07	2001-10-10
KHOO, Teng Chye	Director	2006-09-06	2008-09-05
KIM, Changwon, Professor	Director	2010-09-24	2012-09-21
KLING, Walter, Dipl-Ing	Director	2021-04-24	2024-08-10
KLING, Walter, Dipl-Ing	Director	2010-09-24	2014-09-19
KLING, Walter, Dipl Ing	Director	2006-09-14	2008-09-05
KROISS, Helmut, Prof.Dr.	Director	2010-09-24	2018-09-13
KROISS, Helmut, Prof Dr	Director	2006-03-08	2008-09-05
MARTYN, Theodorus Gerardus	Director	1999-09-07	2001-10-10
MATSUI, Saburo	Director	2006-03-08	2006-09-06
MATSUI, Yoshihiko, Dr	Director	2018-09-13	2022-09-09
MILBURN, Anthony	Director	1998-07-13	2002-05-03
MOLINOS SENANTE, Maria	Director	2021-04-24	2024-08-10
MUGISHA, Silver	Director	2014-09-26	2018-09-13
MURTHY, Sudhir Narasimha	Director	2014-09-26	2021-04-24
MWANZA, Dennis Daniel	Director	2014-09-26	2016-10-07
NOLASCO, Daniel Alfredo	Director	2012-09-21	2024-08-10
ODENDAAL, Pieter Emelius	Director	1999-09-07	2003-03-11
OHGAKI, Shinichiro, Professor	Director	2006-09-06	2010-09-24
OLSSON, Gustaf, Prof	Director	2007-06-08	2010-09-23
PAYEN, Gerrard Paul Marie	Director	2006-09-06	2016-10-07
QUI, Baoxing, Vice Minster	Director	2006-03-08	2006-09-14
RAS, Juan	Director	2003-03-11	2008-09-05
REITER, Paul	Director	2002-05-06	2012-12-08
RIVERA,UR, Virgilio	Director	2018-09-13	2022-09-09
ROSE, Joan, Dr	Director	2016-10-08	2021-04-24
ROSITO, Carlos Alberto	Director	2010-09-24	2012-09-21
ROUSE, Michael John	Director	2001-10-10	2006-09-06
RUZICKA, Katarina	Director	2008-09-05	2010-09-23
SCHERER, Peter	Director	1999-09-07	2002-01-22
SLIPPER, Michael John	Director	1998-07-13	1999-09-07
SOMLYODY, Laszlo, Professor	Director	1999-09-07	2008-09-05
TAMBO, Norihito, Professor	Director	1999-09-07	2004-09-15
TASLI TORAMAN, Rüya, Prof.	Director	2012-09-21	2014-09-19
TEIXEIRA DE CARVALHO, Cassilda	Director	2008-09-05	2010-09-23
UJANG, Zaini, Professor	Director	2006-06-08	2006-09-06
VANROLLEGHEM, Peter, Professor	Director	2021-04-24	2024-08-10
VANROLLEGHEM, Peter, Professor	Director	2012-09-21	2016-10-07
VERISSIMO COLACO ALEGRE, Helena Maria, Dr	Director	2010-09-24	2012-09-21
VERISSIMO COLAGO ALEGRE, Maria Helena	Director	1999-09-07	2001-10-10
WALDRON, Tim	Director	2012-09-21	2014-09-19
WHALEY, Marie Pierre Adrienne, Dr	Director	2016-10-08	2024-08-10
WILLIAMS, Tom	Director	2017-04-01	2017-09-25
YANG, Min, Dr	Director	2012-09-21	2014-09-19

Ownership

Persons with significant control

No persons with significant control on record.

Filing timeline

Last 20 of 256 total filings

Date	Type	Category	Description
2025-09-25	AA	accounts	Accounts with accounts type group
2025-08-19	CS01	confirmation-statement	Confirmation statement with no updates	PDF
2025-04-07	AP01	officers	Appoint person director company with name date	PDF
2025-04-07	AP01	officers	Appoint person director company with name date	PDF
2025-04-07	TM01	officers	Termination director company with name termination date	PDF
2025-04-07	TM01	officers	Termination director company with name termination date	PDF
2025-04-07	TM01	officers	Termination director company with name termination date	PDF
2025-04-07	TM01	officers	Termination director company with name termination date	PDF
2025-04-07	TM01	officers	Termination director company with name termination date	PDF
2025-04-07	AP01	officers	Appoint person director company with name date	PDF
2024-08-08	CS01	confirmation-statement	Confirmation statement with no updates	PDF
2024-07-17	AA	accounts	Accounts with accounts type group
2023-10-05	AP01	officers	Appoint person director company with name date	PDF
2023-08-24	AA	accounts	Accounts with accounts type group
2023-08-02	CS01	confirmation-statement	Confirmation statement with no updates	PDF
2023-03-15	AP01	officers	Appoint person director company with name date	PDF
2023-03-15	AP01	officers	Appoint person director company with name date	PDF
2023-03-15	TM01	officers	Termination director company with name termination date	PDF
2022-10-03	AP01	officers	Appoint person director company with name date	PDF
2022-10-03	AP01	officers	Appoint person director company with name date	PDF

Public-record activity

Raw counts from Companies House — last 12–24 months

Filings: 2
Capital events: 0
Officers appointed: 0
Officers resigned: 0

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

+43.4%

£6,180,250 £8,865,036
Cash

+65.3%

£3,550,618 £5,867,743
Net assets

+27.4%

£3,979,040 £5,071,018
Employees

+2%

51 52
Profit before tax

+357.4%

-£396,591 £1,020,665
Wages

+3.5%

£2,455,515 £2,541,041

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

Official Companies House page