Dwr Cymru Welsh Water

What Dwr Cymru Welsh Water does

Dŵr Cymru Welsh Water is a not-for-profit water and wastewater utility serving nearly 1.5 million customers across Wales, Deeside, and parts of Herefordshire. It is wholly owned by Glas Cymru, a single-purpose holding company structured with no shareholders, so all surplus cash is reinvested into infrastructure rather than distributed as profit. Founded in 1989 and headquartered in Cardiff, the company delivers two core regulated services — water supply and wastewater collection/treatment — supported by an extensive underground network of treatment works, reservoirs, sewers, and storm overflows.

The operating model is capital-intensive and rate-base-driven. Revenue is generated primarily through household water and sewerage charges (average bill £683 in 2026-27, up 4.8%) and business/developer service charges, all set within Ofwat's five-year AMP price-control framework. The company is currently executing AMP8 (2025-2030), its largest ever investment programme, with £6 billion of total expenditure and £4.2 billion of capital investment earmarked for environmental improvements, leakage reduction, pipe replacement, and a £667.2 million Cwm Taf water infrastructure scheme. Supporting technology includes over 2,300 Event Duration Monitoring devices on storm overflows, a real-time public storm overflow map, smart metering infrastructure targeting 79% penetration via the M Group Water alliance, and an early-stage HYDROLOOP hydrogen-from-wastewater research pilot with the University of South Wales.

Distribution is direct-to-customer via the dwrcymru.com consumer website, the My Account online portal, a phone contact centre (including Welsh-language and BSL lines), and field operations. The company also runs social tariff programmes (HelpU Tariff, WaterSure Wales, Cymuned) supporting over 145,000 customers annually, and community engagement through the REACH team and partnerships with third-sector organisations. Strategic priorities under AMP8 are dominated by regulatory compliance, environmental remediation, and an aggressive capex ramp — alongside a planned 12% workforce reduction and a 27% prior customer bill increase to absorb regulatory costs and credit rating downgrades.

Name

Dwr Cymru Welsh Water

Legal name

Dŵr Cymru Cyf

Website

https://dwrcymru.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

1,001–5,000 employees

Ownership category

akta.pro rank

Product category

Water and Wastewater Utility Services

NAICS

Water Supply and Irrigation Systems (22131), Sewage Treatment Facilities (22132), Water, Sewage and Other Systems (2213)

SIC

Water Supply (4941), Sanitary Services (4950), Electric, Gas & Sanitary Services (4900), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Advanced Treatment & Purification Utilities (MF/UF, RO, AOP, UV) (EUANAGAD)

akta.pro secondary industries

Water Reclamation & Reuse Production (Tertiary/Advanced Treatment) (EUANADAD), Water Reuse & Reclamation Infrastructure Construction (Recycled Water Systems) (IMAFAGAH)

Keywords

• Water supply services
• Wastewater treatment
• Sewerage services
• Water utility services
• Metered water billing

Headquarters

HQ city

Cardiff

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Supply Chain

Revenue model

1. Household water and wastewater charges: Recurring household water and sewerage service charges billed to domestic customers, with average household bills of £683 in 2026-27 following a 4.8% increase. Revenue is reinvested into infrastructure rather than distributed to shareholders as the company operates on a not-for-profit basis.
2. Business and developer service charges: Charges for commercial water and wastewater services, developer connections, and value-adding services to non-household customers. Services include metering programmes, water network alliances, and infrastructure development projects.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Dŵr Cymru Welsh Water provides clean drinking water supply and wastewater/sewerage collection and treatment services to residential households and commercial businesses across Wales, Deeside, and parts of Herefordshire, England. The company operates an extensive water and wastewater treatment network with smart metering infrastructure, online account management portals, and value-adding services for non-household customers. It is the only not-for-profit water company in the UK, reinvesting all revenue into infrastructure and environmental improvements.

Product overview

Dŵr Cymru Welsh Water is a not-for-profit water company (the only one of its kind in the UK) that provides water supply and wastewater services to households and businesses across Wales and parts of England. The core products are its Water Supply Service (drinking water provision) and Wastewater Service (sewage collection and treatment), delivered through an extensive network infrastructure. These are supported by customer-facing digital services including My Account Online (self-service portal), Water Meters (metering programmes via the Water Network Alliance partnership), Priority Services Register (vulnerability support), and Help with Bills (social tariffs including HelpU Tariff, WaterSure Wales, Cymuned, and Customer Assistance Fund). Community-focused programmes include Cartref (free home leak repairs and water efficiency visits), Get Water Fit (water-saving devices and usage calculator), and Stop the Block (sewer blockage prevention campaign). Value Adding Services are offered to business customers. Major infrastructure programmes include the Cwm Taf scheme (£667.2 million, operational 2033) and the AMP8 investment programme (£617 million invested in 2025-26; £6 billion total expenditure over five years). The company has no shareholders and reinvests all profits into service improvement and environmental protection.

Differentiator

Problem solved

Functional benefit

Products and services

• Water Supply Service Provision of clean, safe drinking water to households and businesses across Wales and parts of England, including water treatment, network management, and supply continuity. This is the company's core regulated service.
• Wastewater Service Collection and treatment of domestic wastewater through sewerage systems, returning cleaned effluent to the environment, including drainage and wastewater management planning.
• My Account Online Online self-service portal enabling customers to view accounts, manage billing, submit meter readings, update details, and access services digitally.
• Water Meters Metering service allowing customers to switch to metered billing, including applications, meter reading submission, and about-meter information. Company targets 79% meter penetration across Wales under the AMP8 programme.
• Priority Services Register Free support register for vulnerable customers providing alternative water supply during interruptions, alternative information formats, bogus caller protection, and additional assistance.
• Help with Bills Financial assistance including HelpU Tariff for low-income households, WaterSure Wales Tariff for metered customers with high usage, Water Direct Scheme, Cymuned short-term support for working households, Customer Assistance Fund Debt Support scheme, and spread-the-cost payment options.
• Cartref Home support programme offering free toilet leak repairs by plumbers, free water efficiency home visits, and assistance finding and managing household leaks. Includes leaky loo repairs and water-saving device installation.
• Get Water Fit Water efficiency programme with digital calculator to estimate household water usage, free water-saving devices, and personalised savings recommendations in partnership with Save Water Save Money.
• Value Adding Services Business-oriented services including data logging, process audits, water efficiency assessments, and leak detection support for non-household customers.
• Stop the Block Environmental campaign and educational programme encouraging customers to avoid flushing wet wipes, cotton buds, sanitary products, and fats down drains to prevent sewer blockages and environmental pollution.
• In Your Area Location-based service allowing customers to monitor incidents, planned works, investments, reported leaks, and emergencies by postcode; includes registration for real-time alerts.

Quantifiable outcome

• Customers supported with financial assistance annually: over 145,000, with savings of up to £300 per year
• +3 more outcomes

Named customers2 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Growing Mid Wales BoardminorStrategic or Co-development Partner · 24 May 2026The Growing Mid Wales Board approved £3.81m in additional funding for the Elan Valley Lakes Project, bringing total Growth Deal support to £4.37m, with Welsh Water providing 50% matched investment. The project aims to create a flagship visitor destination in Mid Wales with expanded facilities, a new exhibition space and planetarium, improved accessibility, and low carbon infrastructure including EV charging.
• University of South Wales (USW)minorStrategic or Co-development Partner · 22 May 2026University of South Wales researchers are leading HYDROLOOP, a UKRI-funded project integrating hydrogen generation into wastewater treatment using an electrolyser powered by treated wastewater. The pilot project is hosted at a Welsh Water treatment facility in South Wales. The initiative received £65,000 through the UKRI-supported GW SHIFT programme plus £65,000 in-kind from HydroStar Europe Ltd.
• M Group WatercoreImplementation/ SI/ Consulting Partner · 7 January 2026M Group Water was selected as part of Dŵr Cymru Welsh Water's Water Network Alliance to deliver metering and customer appointment programmes across Wales over AMP8. The five-year framework has potential for a three-year extension. The contract aims to achieve 79% meter penetration and includes new meter installations, private leakage reduction, and lead pipe replacement as part of the 2050 Lead Free Wales objective.
• AtkinsRéaliscoreImplementation/ SI/ Consulting Partner · 17 November 2025AtkinsRéalis has been appointed by Welsh Water as one of four Engineering Consultancy Services partners to support delivery of the company's largest ever environmental enhancement and water supply protection programme. The proposed five-year investment programme represents £3.5 billion in spending, a 68% increase over 2020-2025. The appointment extends a two-decade relationship and runs for an initial four years with an optional four-year extension.
• Spring (Innovation Centre of Excellence for UK and Ireland Water Sector)minorStrategic or Co-development Partner · 15 July 2025Peter Perry, former chief executive of Dŵr Cymru Welsh Water (2020-2025), was appointed as new chair of Spring, the Innovation Centre of Excellence for the UK and Ireland water sector, effective 9 July 2025. He brings 45 years of water sector experience and will focus on securing long-term stability and driving innovation under the 2050 Water Innovation Strategy.

Scale indicators14 records

Expansion highlights7 records

Direct peers

• Severn Trent: Severn Trent is a major Ofwat-regulated water and wastewater company serving ~8 million customers across the Midlands and parts of Wales. It is the closest direct peer to Welsh Water in terms of regulatory framework, integrated water/wastewater operations, and exposure to AMP8 enforcement scrutiny.
• United Utilities: United Utilities serves ~7 million customers in North West England with water and wastewater services under Ofwat regulation. It is a direct peer to Welsh Water in regulatory regime, integrated utility model, AMP8 capex exposure, and current enforcement case status.
• Anglian Water: Anglian Water is a regulated water and wastewater company serving ~4.3 million customers in the East of England. It is a direct peer to Welsh Water in terms of integrated water/wastewater operations, Ofwat regulatory framework, and current AMP8 enforcement exposure.
• Yorkshire Water: Yorkshire Water serves ~5 million customers with regulated water and wastewater services. It is a direct peer to Welsh Water in scale, regulatory regime, integrated utility operations, and exposure to Ofwat enforcement investigations on wastewater performance.
• Hafren Dyfrdwy: Hafren Dyfrdwy is the Severn Trent-owned water-only company serving parts of the Welsh border region including areas near Welsh Water's territory. It is a direct peer in geography, customer base, and current Ofwat enforcement case status alongside Welsh Water.
• Thames Water: Thames Water is the UK's largest water and wastewater company serving ~15 million customers across London and the Thames Valley. Despite its current financial distress, it is a direct peer to Welsh Water in Ofwat regulatory regime, integrated water/wastewater operations, and sector-wide enforcement exposure.
• Pennon Group: Pennon Group owns South West Water and Bournemouth Water, serving ~1.7 million customers with regulated water and wastewater services. It is a direct peer to Welsh Water in scale, regulatory exposure, and integrated utility model.
• Northumbrian Water: Northumbrian Water serves ~2.7 million customers in North East England with water and wastewater services. It is a direct peer to Welsh Water in Ofwat regulatory regime, integrated water/wastewater operations, and AMP8 investment cycle exposure.
• South West Water: South West Water, owned by Pennon Group, serves customers across Devon, Cornwall and parts of Dorset with water and wastewater services. It is a direct peer to Welsh Water in regulatory regime, scale, and exposure to environmental enforcement and customer-bill scrutiny.
• Affinity Water: Affinity Water is the UK's largest water-only supplier serving ~3.6 million customers across the South East. It is a direct peer to Welsh Water in Ofwat regulation, customer affordability programmes, and AMP8 capex exposure.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/DwrCymru
• Facebookfacebook.com/DwrCymruWelshWater
• LinkedInlinkedin.com/company/welsh-water

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Funding overview

Funding rounds1 record

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Dwr Cymru Welsh Water