WASTEWATER MANAGEMENT HOLDINGS LIMITED

Accounts Submitted 21 Oct 2025

Confirmation Statement Submitted 2 Jul 2025

Net assets £300.00K £0.00 2024 year on year

Total assets £4.57M £1.77M 2024 year on year

Total Liabilities £4.27M £1.77M 2024 year on year

Charges 2

2 outstanding

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Contact & Details

Contact

Update Details

Registered Address

Meadowhead Wastement Treatment Works & Sludge Treatment Centre Meadowhead Road, Irvine Ayrshire KA11 5AY

Credit Report

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Mutual Companies

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Financials

Period 1 Jan → 31 Dec 2024

Type Total Exemption Full

Next accounts 31 December 2025

Due by 30 September 2026 9 months

Net Assets, Total Assets & Total Liabilities (2014–2024)

Cash in Bank

N/A

Net Assets

£300.00k

Total Liabilities

£4.27M

Decreased by £1.77M (-29%)

Turnover

N/A

Employees

N/A

Debt Ratio

93%

Decreased by 2 (-2%)

Financial History

Revenue, profit, EBITDA and key financial figures

	2024 Dec Year End	2022 Dec Year End
P&L
Revenue	£142.3M	£128.7M
Gross Profit	£48.2M	£43.1M
Operating Profit	£22.4M	£19.8M
Net Profit	£18.1M	£15.9M
EBITDA	£31.5M	£28.2M
Assets
Cash	£24.7M	£21.3M
Total Assets	£89.4M	£82.1M
Liabilities
Total Liabilities	£45.2M	£41.8M
Key Metrics
Employees	1,247	1,156

Latest Revenue

£142.3M

Latest EBITDA

£31.5M

Cash Position

£24.7M

Funding

Fundraising & Grants

No fundraising or grants recorded

Investors (0)

No investor information available

Officers

4 active 33 resigned

Show resigned officers

						Status
Alan Campbell Ritchie	Director	British	United Kingdom	58	5 Dec 2009	Active
Richard William Peter Somerville	Secretary	Unknown	Unknown	—	8 Oct 2021	Active
Richard William Peter Somerville	Director	British	United Kingdom	45	30 Jul 2025	Active
Stewart Hazon	Director	British	United Kingdom	54	30 Sept 2012	Active

Shareholders

Shareholders (2)


Northumbrian Services Limited	75.0%	224,999	Ordinary 'a'	29 Jun 2016
Semperian Ppp Holdings Limited	25.0%	75,001	Ordinary 'b'	29 Jun 2016

Persons with Significant Control

Persons with Significant Control (2)

2 Active

Northumbrian Services Limited

United Kingdom

Active

Notified 6 Apr 2016

Nature of Control

Ownership Of Shares 50 To 75 Percent
Voting Rights 50 To 75 Percent
Right To Appoint And Remove Directors

Semperian Ppp Holdings Limited

United Kingdom

Active

Notified 6 Apr 2016

Nature of Control

Ownership Of Shares 25 To 50 Percent
Voting Rights 25 To 50 Percent

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Group Structure

NORTHUMBRIAN SERVICES LIMITED united kingdom shares 25 to 50 percent, voting rights 25 to 50 percent

SEMPERIAN PPP HOLDINGS LIMITED united kingdom shares 75 to 100 percent, voting rights 75 to 100 percent, appoint/remove directors

CKI UK CO 5 LIMITED united kingdom shares 75 to 100 percent, voting rights 75 to 100 percent, appoint/remove directors

SEMPERIAN NO.21 LIMITED united kingdom shares 75 to 100 percent, voting rights 75 to 100 percent, appoint/remove directors

CKI UK CO 6 LIMITED united kingdom

SEMPERIAN PPP INVESTMENT PARTNERS NO.2 LIMITED united kingdom shares 75 to 100 percent, voting rights 75 to 100 percent, appoint/remove directors

SEMPERIAN INFRASTRUCTURE PORTFOLIO LIMITED united kingdom shares 75 to 100 percent, voting rights 75 to 100 percent, appoint/remove directors

SEMPERIAN INFRASTRUCTURE LIMITED united kingdom

WASTEWATER MANAGEMENT HOLDINGS LIMITED Current Company

AYR ENVIRONMENTAL SERVICES LIMITED united kingdom shares 75 to 100 percent, voting rights 75 to 100 percent, appoint/remove directors

Charges

2 outstanding

Documents

Company Filings

Date	Category	Description	Document
21 Oct 2025	Accounts	Annual accounts made up to 2025-03-31	View(19 pages)
6 Aug 2025	Officers	Appointment of Mr Richard William Peter Somerville as director on 2025-07-30	View(2 pages)
6 Aug 2025	Officers	Termination of Steven Nicholas Crake as director on 2025-07-30	View(1 page)
2 Jul 2025	Confirmation Statement	Confirmation statement made on 2025-06-23 with no updates	View(3 pages)
13 Dec 2024	Accounts	Annual accounts made up to 2024-03-31	View(19 pages)