What Enpure does

Enpure is a UK-based process engineering company that designs and delivers water, wastewater, and sludge treatment infrastructure for municipal utilities and industrial clients globally. Its technology portfolio centres on the Enflo-DAF family of dissolved air flotation systems (introduced to the UK in 1972 and now offered in Enflo-Vite, Enflo-Filt, Enflo-PI variants), Silicon Carbide (SiC) ceramic membranes distributed from sister company Cembrane, the sonixTM ultrasonic feedstock pre-treatment system for anaerobic digestion, Dual Media Filters for seawater desalination pre-treatment, Enflo-Carb for metaldehyde removal, Thermal Hydrolysis Plants, MBBR biological reactors, and emerging PFAS treatment technology. The company combines these proprietary technologies with full EPC delivery capability.

The business operates four revenue streams: large-scale EPC contracts as principal contractor or joint-venture lead (project values from £10M to over £100M), supply and licensing of proprietary equipment, ongoing operations and maintenance services, and technical consultancy/feasibility studies. Customers are predominantly regulated UK water utilities — including Severn Trent Water, Thames Water, Northumbrian Water, and Sutton and East Surrey Water — accessed through multi-year framework agreements (Severn Trent AMP7 £2bn programme, Northern Ireland Water MPPF £1.2bn), supplemented by international industrial and municipal clients such as BHP (Escondida, Chile), PUB Singapore (TUAS 3), and the Saudi Arabian desalination authority (Yanbu 4). Enpure was acquired by German water-technology group SKion Water GmbH in 2022 and operates as a subsidiary alongside sister companies including Ovivo, Paques, Eliquo, and Cembrane.

The company employs 101–250 staff at its Birmingham headquarters (Enpure House, Rubery) and delivers projects across the UK, Western and Northern Europe, the Middle East, Southeast Asia, South America, and North America. Joint ventures with UK tier-one contractors (Barhale, BAM Nuttall, North Midland Construction, Farrans, Interserve) are a core go-to-market mechanism for accessing mega-projects, while the SKion Water ecosystem provides cross-sell opportunities into energy, paper, and food and beverage verticals. Recognised with multiple Water Industry Awards (2022) and Global Water Summit 'Desalination Plant of the Year' honours (2017, 2019).

Name

Enpure

Legal name

Enpure Limited

Website

https://enpure.co.uk

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

101–250 employees

Ownership category

akta.pro rank

Product category

Water and Wastewater Treatment Engineering Services

NAICS

Sewage Treatment Facilities (22132), Water Supply and Irrigation Systems (221310), Water, Sewage and Other Systems (2213)

akta.pro primary industry

Desalination Plant EPC, O&M & Performance Optimization (EUANAFAK)

akta.pro secondary industries

Advanced/Nutrient Removal (BNR/ENR: N, P) (EUANADAC), Membranes, Consumables & Chemicals (Elements, Antiscalants, Cleaning) (EUANAFAJ)

Keywords

• Water treatment engineering
• Wastewater treatment services
• Sludge treatment solutions
• Desalination pre-treatment
• Anaerobic digestion systems

Headquarters

HQ city

Rubery

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. EPC (Engineering, Procurement & Construction) Contracts: Enpure serves as main contractor or joint venture lead for large-scale design-and-build water/wastewater infrastructure projects. Revenue is project-based, one-time, derived from fixed-price or framework contracts. Examples include the £50M Bellozanne STW replacement, £46M Northumbrian Water Horsley WTW upgrade, and £100M+ Birmingham Resilience Project.
2. Technology Supply and Licensing: Supply of proprietary technologies including DAF systems, Dual Media Filters, SiC membranes, and associated equipment. Revenue generated through equipment supply, process design licensing, and technology provider fees for desalination and wastewater projects globally.
3. Operations & Maintenance Services: Ongoing O&M services for water and wastewater treatment assets, including commissioning, process audits, and operational support.
4. Consultancy and Feasibility Studies: Technical consultancy services, feasibility studies, process design, and project management for water and wastewater sector clients.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels6 records

Core offering

Enpure is a process engineering company that designs, delivers, and operates water, wastewater, sludge, and waste-to-energy treatment solutions. It supplies proprietary technologies including the Enflo-DAF family of dissolved air flotation systems, silicon carbide (SiC) ceramic membranes, the sonix ultrasonic feedstock pre-treatment system, Dual Media Filters, MBBR biological treatment, and PFAS treatment, and executes these via EPC (Engineering, Procurement & Construction) contracts, framework agreements, operations & maintenance, and technical consultancy for municipal water utilities and industrial clients globally.

Product overview

Enpure is a water and wastewater treatment engineering company that provides an integrated portfolio of treatment technologies and specialist engineering services. The core technology offerings include the Enflo-DAF™ family of dissolved air flotation products (Enflo-DAF™, Enflo-Vite™, Enflo-Filt™, Enflo-PI™), SiC (silicon carbide) membrane products (SicBlox, stormBLOX, clearBLOX, UltraBlox), sonix™ ultrasonic feedstock pre-treatment for anaerobic digestion, Dual Media Filters, Enflo-Carb™ for contaminant removal, PFAS treatment, and MBBR biological treatment. These technologies are delivered through comprehensive engineering services including construction, fabrication, feasibility studies, process design, consultancy, project management, operation & maintenance, and commissioning. The company operates as both a technology provider and EPC contractor, serving municipal water companies, industrial clients, and wastewater treatment facilities across the UK and internationally.

Differentiator

Problem solved

Functional benefit

Brands

• Enflo-DAF: High-rate dissolved air flotation technology system
• Enflo-Carb
• sonix
• Enflo-Vite
• Enflo-Filt
• Enflo-PI
• SiC Membranes
• clearBLOX
• ultraBLOX
• stormBLOX
• SicBlox
• ClearBlox
• UltraBlox

Products and services

• Enflo-DAF (Dissolved Air Flotation) High-rate dissolved air flotation technology for water and wastewater pre-treatment, including variants Enflo-Vite (process intensification retrofit), Enflo-Filt (combined flotation and filtration), and Enflo-PI (modular saturated water distribution for DAF tanks up to 16m wide). Sold to municipal water utilities, desalination plants, and industrial water users globally.
• Enflo-Carb (Metaldehyde Removal Technology) Process solution for removal of metaldehyde and other recalcitrant organic biocides from raw surface water sources, built on Enflo-DAF technology combined with activated carbon. Targeted at drinking water utilities facing pesticide contamination.
• sonix Feedstock Pre-Treatment System Ultrasonic sound energy system that breaks open cellulosic barriers in anaerobic digestion feedstocks to improve biogas yields. Fully containerised with plug-and-play design. Targeted at AD plant operators seeking higher biogas output.
• SiC (Silicon Carbide) Ceramic Membranes Submerged ultrafiltration flat-plate membranes with 0.1-micron pore size made from silicon carbide. Naturally hydrophilic, chemically inert (sustains pH 2-13), mechanically robust, and resistant to harsh cleaning. Sold through Enpure across the UK market.
• UltraBlox Tertiary Treatment System SiC-membrane-based tertiary treatment system for producing clean, pure, and safe water from conventional wastewater treatment effluent. Used for advanced reuse (DPR, IPR, Title 22), industrial process water make-up, and UF/MF membrane plant rehab. Provides phosphorus, metal, and pathogen removal.
• ClearBlox Drinking Water Filtration SiC-based system for upgrading or retrofitting conventional gravity filter plants to meet current drinking water requirements and protect against today's most toxic pollutants. Sold to municipal drinking water utilities.
• Stormwater (stormBLOX) Treatment System SiC rapid storm treatment technology that instantly treats storm-driven sewer discharges at onset, physically blocking solids and pathogens from entering waterways. Meets disinfection requirements without supplemental chemicals. Sold to municipal utilities managing stormwater overflows.
• Dual Media Filters (DMF) Pressurised dual media filter vessels for pre-treatment of seawater reverse osmosis desalination plants. Each vessel measures 12.5m long by 4m diameter and weighs 56 tons. Sold to large-scale desalination projects internationally.
• MBBR (Moving Bed Biofilm Reactor) Biological wastewater treatment technology using the moving bed biofilm reactor process. Sold to municipal and industrial wastewater treatment clients.
• PFAS Treatment Technology Technology for treatment of per- and polyfluoroalkyl substances (PFAS) contaminants in water. Sold to water utilities and industrial clients facing PFAS contamination challenges.
• Specialist Engineering Services (EPC and Consultancy) Full specialist engineering services package covering construction, off-site fabrication, feasibility studies, process audits, process design, consultancy, project management, technology provision, operation & maintenance, system engineering, and commissioning. Delivered as EPC contracts or framework agreements to water utilities and industrial clients.

Quantifiable outcome

• 50% capacity increase (3,500 to 5,2 m³/day) within existing 15m² footprint at Gothenburg WTP
• +6 more outcomes

Named customers9 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature10 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• Farrans ConstructioncoreStrategic or Co-development Partner · 28 October 2022Civil engineering partner for the £50M Bellozanne sewage treatment works replacement in Jersey. Partnering with Geomarine (local on-island partner) and Pell Frischman (main civil engineering designer) in an Integrated Project Team methodology.
• BAM NuttallcoreStrategic or Co-development Partner · 16 August 2021Enpure in JV with BAM Nuttall awarded five-year contract to design, construct and commission a new sewage treatment works for Thames Water in Guildford. The project is part of the Slyfield Area Regeneration Project enabling 1,500-home development.
• HSL Constructor Pte (Singapore)minorImplementation/ SI/ Consulting Partner · 29 January 2021EPC Contractor for TUAS 3 Desalination Plant in Singapore. Enpure delivered Enflo-DAF pre-treatment technology to HSL Constructor for the PUB of Singapore project.
• Barhale Enpure Joint VenturecoreStrategic or Co-development Partner · 19 July 2019Joint venture bringing together Enpure and Barhale (two of the UK's leading water sector specialist contractors) for Severn Trent AMP7 framework delivery. Appointed to both Lots 2 (civils-led) and 3 (MEICA-led) of Severn Trent's £2bn investment programme. JV won two Water Industry Awards in 2022 for the Clifton ICW Project.
• DNM Alliance (Enpure + North Midland Construction)coreStrategic or Co-development Partner · 14 June 2017Joint venture between Enpure and North Midland Construction for the Birmingham Resilience Project. Worth in excess of £100 million for design and construction of a new Water Treatment Plant at Frankley for Severn Trent Water. The alliance was also referenced in relation to the Strongford THP project.
• InterserveminorStrategic or Co-development Partner · 3 May 2016Enpure Interserve JV awarded £46M contract by Northumbrian Water to upgrade Horsley water treatment works in Tyne Valley, serving 800,000 customers.
• Anaerobic Digestion and Bioresources Association (ADBA)minorOthers · 26 February 2016Enpure joined ADBA from February 2016 to engage with sector members through working groups, member meetings and sector events as part of its ongoing waste and energy sector strategy.
• Chartered Institution of Wastes Management (CIWM)minorOthers · 26 February 2016Enpure sponsors the CIWM Journal March 2016 special feature on food waste as part of its ongoing waste and energy sector strategy.
• Cembrane (SKion Water Group)coreTechnology or IntegrationCembrane (wholly owned by SKion Water alongside Enpure) manufactures SiC ceramic membranes. Enpure delivers Cembrane SiC membranes throughout the UK market. Membranes manufactured in Denmark and USA, installed in over 250 facilities worldwide.

Scale indicators12 records

Recent moves10 records

Expansion highlights6 records

Broad incumbents

• Mott MacDonald: UK-based global engineering consultancy with an extensive water practice and EPC delivery capability. Direct competitor on UK water framework contracts and international water infrastructure projects.
• Jacobs Solutions: Global professional services firm with a major water infrastructure practice (including the former CH2M). Competes on large-scale water EPC and consulting engagements across UK, EMEA, and Asia-Pacific.
• Black & Veatch: Global engineering, procurement, and construction giant with a leading water/wastewater practice. Directly competes on large water infrastructure tenders and desalination projects worldwide, offering broader portfolio and balance sheet scale.
• Veolia Water Technologies: Global water services giant offering EPC, operations, and proprietary technologies for municipal and industrial water/wastewater treatment. Direct competitor on international projects and large framework bids.
• Xylem: Global water technology company (now including Evoqua) with treatment equipment, digital solutions, and project delivery capabilities. Competes on technology supply and integrated water infrastructure projects.
• Suez Water Technologies & Solutions: Global water and wastewater services provider with EPC and proprietary technology offerings. Comparable on municipal water contracts, desalination, and industrial water treatment engagements.

Direct peers

• Stantec: Global engineering consultancy with a substantial UK water infrastructure practice (formerly MWH Treatment) and international EPC capability. Directly comparable on UK AMP framework delivery, water/wastewater EPC, and municipal utility client base.
• Costain Group: UK-listed infrastructure contractor with a substantial water sector focus, regularly competing for AMP frameworks and major capital projects alongside Enpure. Comparable on JV-led delivery model for UK water utility customers.
• BIwater: UK-headquartered water and wastewater treatment EPC contractor with international reach across the Middle East, Africa, and Asia. Closely comparable business model of project-based water infrastructure delivery with proprietary treatment technology.
• ACCIONA Agua: Spanish global leader in desalination EPC and water treatment. Direct peer on marquee international desalination pre-treatment and RO projects (Escondida, Yanbu, Tuas-class scale), with similar proprietary pre-treatment technology positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/doosan-enpure-limited

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles7 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 Enpure