MWH Treatment

What MWH Treatment does

MWH Treatment Limited is a UK-based integrated design, build and commissioning provider for water and wastewater treatment infrastructure, serving the six largest UK regulated water and wastewater utilities — Anglian Water, Scottish Water, Severn Trent, Southern Water, Thames Water, and United Utilities — through long-term Asset Management Plan framework agreements. The company operates as both a prime contractor and an integrated alliance or joint-venture partner, including @one Alliance (Anglian Water), eight2o (Thames Water), ESD (Scottish Water) and MEPS (DfMA off-site construction), and runs a 100-strong direct workforce alongside a supply chain representing approximately 50% of revenue.

The company's core technology stack centres on its award-winning Digital Delivery Toolbox (laser scanning, 3D/BIM modelling, BIM 360 Glue/Field, Synchro 4D scheduling, and VR/AR stakeholder engagement) and its Design for Manufacture and Assembly (DfMA) methodology, delivered through the MEPS JV with EPS, which has removed over 1,000,000 site hours across the Frankley, Minworth, Tullich and Coppermills projects. WANDA (Wide Area Network Data Analytics) provides real-time clean-water network analytics directly linked to client Outcome Delivery Incentive performance metrics for Severn Trent's 8 million customers, and the business is investing in AI/ML for AMP8 asset management and capital delivery.

MWH Treatment generates revenue primarily through multi-year framework contracts and project delivery under Ofwat's regulated AMP cycle, complemented by consultancy, digital and analytics services. Established in 1820, the company rebranded in 2021 following divestiture from Stantec Inc. and is now a wholly owned subsidiary of RSK Group Ltd, operating from eight UK regional centres with 1,400+ staff.

Name

MWH Treatment

Legal name

MWH Treatment Limited

Website

https://mwhtreatment.com

Company type

Private

Founded year

1820

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

MWH Treatment is a UK-based integrated design, build and commissioning provider for water and wastewater treatment infrastructure, serving all six major UK regulated water utilities through long-term AMP framework agreements and strategic alliances.

Ownership category

akta.pro rank

Product category

Water and Wastewater Infrastructure Services

NAICS

Water and Sewer Line and Related Structures Construction (237110)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Water Treatment Plant Construction (Drinking Water) (IMAFAGAA)

akta.pro secondary industries

Water Reuse & Reclamation Infrastructure Construction (Recycled Water Systems) (IMAFAGAH), District Metered Areas (DMA) Design, Deployment & Optimization (EUANAKAD), Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

Keywords

• Water treatment infrastructure
• Wastewater treatment design
• Design and build services
• Digital construction delivery
• Network analytics platform

Headquarters

HQ city

Salford

HQ country

United Kingdom

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Water Infrastructure Project Delivery: Design and construction of water and wastewater treatment infrastructure through framework agreements with UK water companies. Revenue generated from project delivery across asset management periods (AMP1-AMP8).
2. Framework Contracts: Long-term partnerships with six major UK water companies (Anglian Water, Scottish Water, Severn Trent, Southern Water, Thames Water, United Utilities) operating across multiple AMP cycles, providing recurrent project flow.
3. Supply Chain Procurement: Strategic procurement of subcontracted services and goods, representing approximately 50% of revenue spent on supply chain in 2018.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

MWH Treatment provides integrated design and build solutions for water and wastewater treatment infrastructure, delivering projects from concept through commissioning under long-term framework agreements with UK water utilities. The company combines engineering, procurement, MEICA delivery, digital delivery tools (BIM, 4D scheduling, VR/AR), and off-site DfMA construction to serve AMP cycle investment programmes, with additional offerings including the WANDA network analytics platform and the MWH Reeds constructed-wetland product line.

Differentiator

Problem solved

Functional benefit

Brands

• MWH Reeds: Reed-growing business based in St Asaph, Denbighshire, North Wales, specialising in Phragmites australis (Common Reed) for constructed wetlands and tertiary treatment processes

Products and services

• Design and Build Services for Water and Wastewater Infrastructure
• Digital Delivery Service
• WANDA (Wide Area Network Data Analytics)
• MWH Reeds Constructed Wetland Products

Quantifiable outcome

• 50,000 work hours saved on Minworth THP project through digital delivery
• +8 more outcomes

Named customers7 records

Segments3 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability8 records

Feature4 records

Partnerships

13 partnerships are on record, tiered core, flagship, major and supporting.

• Thames Water - eight2o Alliance (SMB JV)coreStrategic or Co-development Partner · 1 January 2015Skanska joined MWH and Balfour Beatty in the SMB joint venture as design and build partner for Thames Water's £2 billion AMP6 eight2o alliance, delivering water infrastructure projects across London from 2015 to 2020. Achieved over 12 million man hours of safe working.
• Anglian Water - @one AllianceflagshipStrategic or Co-development Partner · 1 January 2005MWH Treatment became a founding partner in Anglian Water's @one Alliance in 2005, seen as one of the world's leading water sector alliances. The alliance has regularly outperformed Anglian Water's company business plan by up to 20% over three AMP periods. MWH Treatment has provided around 30% of the alliance's senior leadership team.
• Scottish Water Strategic PartnershipcoreStrategic or Co-development Partner · 1 January 2002Following Scottish Water's creation, the Biwater-Leslie JV successfully won and delivered Scottish Water's first £75m Strategic Partnership Programme. The JV was a catalyst for growth in the region, harnessing local skills with process MEICA design-build specialist capabilities.
• EPS - MEPS JVcoreStrategic or Co-development PartnerPartnership with Cork-based contractor EPS to develop off-site assembly opportunities, forming MEPS JV. The JV has developed and delivered major off-site assemblies for Frankley, Minworth, Tullich, and Coppermills projects, removing over 1,000,000 site hours.
• ESD (Efficient Service Delivery) JVcoreStrategic or Co-development PartnerFully integrated joint venture between Black & Veatch, Galliford Try, and MWH Treatment for Scottish Water delivery. ESD delivered Tullich WTW (£29m) as one of Scottish Water's biggest ever investments in Argyll and Bute.
• George LesliemajorChannel Partner/ Reseller/ DistributorFormed Biwater-Leslie JV with George Leslie to deliver 16 treatment works throughout the West coast of Scotland, employing local labour and creating £5m in capital efficiencies over a £38m programme.
• ColloidmajorTechnology or IntegrationCollaborative development of standardised polymer dosing rig designs across 9 schemes for Severn Trent's Coagulation & Clarification programme, resulting in £50k unit cost reductions per rig.
• Dunphy CombustionmajorTechnology or IntegrationCollaborative production of off-site constructed optimised boiler house at Minworth Severn Trent, saving 5 weeks on optimised programme and 30 weeks against traditional methods.
• CAMBImajorTechnology or IntegrationSupply chain partner for Minworth THP thermal hydrolysis plant. MWH Treatment visited CAMBI's factory throughout manufacture and testing. Plant delivered 4 weeks early through collaborative planning and digital rehearsals.
• ForkersmajorTechnology or IntegrationEarly engagement of Forkers for Melbourne HLPS project due to previous working relationship, attitude, and deep excavation skill sets. Collaborative planning drove value ideas into design.
• GAP Group LimitedmajorTechnology or IntegrationClose daily collaboration with permanent in-office secondment of liaison staff. Supplier Performance Score improved from 68.1% in 2014 to 78.0% in 2018.
• CEMA AutomationsupportingTechnology or IntegrationGraduate secondment to CEMA Automation in Nottingham to develop hands-on skills in LV switchgear and MCC development, improving procurement and design of MCCs.
• StantecsupportingStrategic or Co-development PartnerMWH Treatment was previously acquired by Stantec Inc. and re-branded, then later divested to become its own entity. Previously co-sponsored Project 13 water sector workshop with Stantec (UK) and Mott McDonald.

Scale indicators21 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with a large UK water practice competing for design, programme management and construction services roles across UK water utility AMP cycles.
• Stantec: Global engineering, architecture and consulting firm; former owner of MWH Treatment (acquired 2021, divested same year). Continues to compete in the UK water sector across design and consulting services.
• Arcadis: Global design and consultancy firm with a UK water practice; competes with MWH for water utility advisory, design and asset management roles within the UK AMP framework ecosystem.

Direct peers

• Black & Veatch: Global water infrastructure specialist and JV partner with MWH in the ESD (Efficient Service Delivery) joint venture for Scottish Water; competes on major UK water treatment EPC projects.
• Costain Group: UK-based infrastructure and engineering solutions provider with a dedicated Water division serving Severn Trent, Thames Water and other UK utilities; competes with MWH on water and wastewater frameworks.
• Skanska: Swedish-origin international contractor with a strong UK infrastructure business; SMB alliance partner with MWH on Thames Water and competitor for water framework contracts.
• Galliford Try: UK construction group with a strong Environment division focused on water infrastructure; JV partner with MWH and Black & Veatch in the ESD JV for Scottish Water and a framework competitor.
• Balfour Beatty: Global infrastructure group with significant UK water capability; MWH's JV partner in the SMB eight2o alliance for Thames Water AMP6 and direct competitor for framework awards across UK water utilities.
• Mott MacDonald: Global engineering consultancy with a major UK water practice; co-sponsored Project 13 with MWH and Stantec, and competes for design and programme management roles on UK water AMP cycles.
• Jacobs Solutions: Global professional services firm with significant UK water and wastewater design and delivery capability; competes with MWH on water utility frameworks and major treatment plant programmes.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat7 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/MWH_Treatment

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 records

Subsidiaries2 records

Funding overview

Funding rounds

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 MWH Treatment