Best Water and Wastewater Management Tech Companies in England, United Kingdom
The 98 best Water and Wastewater Management Tech companies in England, United Kingdom in 2026, ranked by funding and momentum. Funding, investors, founders, valuation, tech stack and live signals. Top: Energy Assets.
Ranked: Best Water and Wastewater Management Tech companies in England
| # | Company | Disclosed funding | Last round | Employees | Founder | Tech stack | Patents & IP focus | Recent signals |
|---|---|---|---|---|---|---|---|---|
| 1 | Energy Assets Provider of AI and web-based smart metering systems 50Innovation top 23%Funding top 31%Product top 33%Growth top 45% All 10 signals ▾Innovationtop 23% Fundingtop 31% Producttop 33% Growthtop 45% AItop 45% Talentbottom 49% Newsbottom 48% Techbottom 41% Globalbottom 39% Marketbottom 24% Innovation: 6 product lines · Deep-tech classification: Tech Hardware Funding: Raised $944M across 1 rounds · 1 rounds over 5 yrs (0.2/yr) rank vs industry peers · Fliar Intelligence Index 50/100 | $944M | 55 mo ago | 6 | Dave Taylor CEO | WordPressPleskApple iCloud Mail+18 | — | 4 job openings · 1 partnership |
| 2 | Hydrofinity Manufacturer of the commercial laundry machines | $39M | 63 mo ago | 47 | — | — | — | — |
| 3 | i2O Water Software solution for utility water network monitoring | $32M | 138 mo ago | 23 | Stephen Brooke | — | — | — |
| 4 | FIDO Provider of AI-driven solutions for water leak detection and management | $28M | 20 mo ago | 25 | Victoria Edwards CEO and Founder | WordPressPleskMySQL+28 | — | 1 partnership |
| 5 | Puraffinity Provider of water treatment solution 55Funding top 27%Talent top 28%Patents top 32%Moat top 32% All 8 signals ▾Fundingtop 27% Talenttop 28% Patentstop 32% Moattop 32% Innovationtop 33% Globalbottom 42% Marketbottom 35% Newsbottom 18% Funding: Raised $25.8M across 11 rounds · 11 rounds over 9 yrs (1.2/yr) Talent: 3 named leaders on record · 3 C-suite/founder profiles curated rank vs industry peers · Fliar Intelligence Index 55/100 | $26M | 21 mo ago | 16 16 → 40 (+150%) | Despoina Paschou ex-Co-Founder | — | 30 patents Functionalized sorbent materials for contaminant removal in water treatment processes | — |
| 6 | Inflowmatix Solutions to optimize water supply network | $18M | 81 mo ago | 13 | Ivan Stoianov Founder | — | — | — |
| 7 | Rezatec Geospatial Satellite imagery and geospatial data analytics for water monitoring | $17M | 74 mo ago | 46 46 → 24 (-48%) | Patrick Newton CEO | WordPressMySQLPHP+27 | — | — |
| 8 | Syrinix Provider of water network monitoring hardware and software solution | $16M | 75 mo ago | 21 | — | — | 27 patents Pipeline integrity monitoring and pressure anomaly detection for pumped fluid transport systems | — |
| 9 | Blue Ocean Seismic Services Provider of robotic solution to study seismic activities on the ocean floor | $13M | 68 mo ago | 7 | — | — | 17 patents Autonomous marine seismic data acquisition systems for offshore exploration | — |
| 10 | LAT Water Sustainable wastewater treatment and desalination solutions | $13M | 61 mo ago | 24 | Mark Hardiman CEO | — | — | — |
| 11 | Evove Developer of advanced membrane technology for separation and filtration applications 53Innovation top 28%Patents top 28%Growth top 35%Talent top 38% All 9 signals ▾Innovationtop 28% Patentstop 28% Growthtop 35% Talenttop 38% Fundingtop 41% Moattop 45% Techbottom 49% Globalbottom 40% Marketbottom 30% Innovation: 42 patents (top 45% of patent-holders) · 42 filings since 2022 vs 0 in 2017-21 Patents: 42 patents matched (strict assignee match) · 42 filings since 2022 vs 0 in 2017-21 rank vs industry peers · Fliar Intelligence Index 53/100 | $9M | 13 mo ago | 24 24 → 32 (+33%) | Craig Clement Co-Founder & CFO | WordPressMySQLPHP+26 | 42 patents Membrane filtration hardware and monovalent ion separation technologies | 1 award |
| 12 | Seloxium Provider of materials and services for metal recovery from industrial waste | $8M | 15 mo ago | 7 | Christian Peters Co-Founder & CEO | WordPressMySQLPHP+9 | 4 patents Selective metal ion removal from aqueous streams using advanced hydrometallurgical processes | — |
| 13 | Watercycle Technologies Provider of technology for filtration and production of valuable minerals and clean water | $6M | 18 mo ago | 10 | — | Cart FunctionalitySquarespace CommerceSquarespace+14 | — | 1 job opening · 1 partnership |
| 14 | Typhon Treatment Systems Provider of developing LED UV disinfection system for water treatment | $6M | 83 mo ago | 12 | — | — | — | — |
| 15 | Hero Labs IoT solution for detecting, preventing, and stopping water leaks in home and businesses | $5M | 55 mo ago | 4 | — | — | — | — |
| 16 | Online Oceans Developer of autonomous ocean drones for real-time data collection services 19Talent top 38%Funding top 42%Tech bottom 38%Global bottom 33% All 5 signals ▾Talenttop 38% Fundingtop 42% Techbottom 38% Globalbottom 33% Marketbottom 25% Talent: 2 named leaders on record · 2 C-suite/founder profiles curated Funding: Raised $5.4M across 1 rounds · 1 rounds over 1 yrs (1.0/yr) rank vs industry peers · Fliar Intelligence Index 19/100 | $5M | 1 mo ago | — | Alistair Douglas Co-Founder & CTO | LeafletMapbox.jsMapbox GL JS+13 | — | — |
| 17 | NVP Energy Wastewater treatment project developer | $5M | 44 mo ago | 9 | Alan Phelan Co-Founder & Director | — | — | — |
| 18 | Watergate Provider of AI-based water consumption monitoring platform 35Tech top 34%AI top 45%Talent bottom 49%Funding bottom 46% All 7 signals ▾Techtop 34% AItop 45% Talentbottom 49% Fundingbottom 46% Productbottom 40% Globalbottom 30% Marketbottom 29% Tech: 36 technologies across 5/8 capability areas · Cloud: Amazon S3, Amazon Web Services AI: Product described with: ai-based rank vs industry peers · Fliar Intelligence Index 35/100 | $5M | 10 mo ago | — | Krystian Zajac Founder & CEO | WordPress Block EditorCart FunctionalityWooCommerce+33 | — | 1 job opening · 1 award |
| 19 | Tapp Water Manufacturer of filtration systems for faucets, showers, pitchers, and bottles | $5M | 69 mo ago | 3 | Magnus Jern Head of Product Strategy & Co-founder | Cart FunctionalityShopifyBootstrap+33 | — | — |
| 20 | 8power Provider of wireless sensors for remote condition monitoring of equipment | $4M | 66 mo ago | 12 | Ashwin Seshia Co-Founder | — | 18 patents Patents concentrated in electrical & electronics | — |
| 21 | PuriFire Labs Technology for generating hydrogen from wastewater treatment | $4M | 21 mo ago | 2 | Neel Shah Co-Founder & CEO | — | 10 patents Patents concentrated in chemistry & materials | — |
| 22 | Intellitect Water Sensor probes for water quality monitoring | $3M | 197 mo ago | 14 14 → 15 (+7%) | John Howell Founder & Owner | — | 50 patents Real-time water distribution monitoring and anomaly detection using sensor data analytics | — |
| 23 | Bactest Developer of microbial monitoring system in water | $2M | 118 mo ago | 14 | Derek Price Co-Founder & CTO | — | — | — |
| 24 | TCarta Provider of geospatial products and Earth observation analytics services | $2M | 14 mo ago | 24 | David Critchley CEO | WordPress Block EditorWordPressMySQL+30 | — | — |
| 25 | ANB Sensors Provider of pH sensors | $2M | 41 mo ago | 12 12 → 11 (-8%) | Nathan Lawrence CEO ANB Sensors | PHPYouTubeOpenSSL+4 | 60 patents Electrochemical pH sensing and reference electrode technologies for analytical instrumentation | 1 launch |
| 26 | ACTIVEWATER TECHNOLOGY Provider of solar-powered water and soil treatment solutions for agriculture | $2M | 35 mo ago | 6 | Zac Gazit CEO & MD | — | — | — |
| 27 | PlanetCare Offers microfiber filters for washing machines | $2M | 67 mo ago | 9 | Miha Vrhovec Chief Product Officer and co-founder | PageFlyCart FunctionalityShopify+41 | — | — |
| 28 | Molymem Provider of waste water management and drink processing application services | $2M | 36 mo ago | 9 | Mark Bissett Co-Founder & CSO | — | — | — |
| 29 | Acoustic Sensing Provider of a cloud-based sewer and rail network lines monitoring system | $1M | 129 mo ago | 2 | Nick Hawkins Co-Founder | — | 5 patents Airborne acoustic inspection systems for pipe integrity monitoring | — |
| 30 | InferSens Provider of AI-integrated IoT sensors for water flow monitoring | $1M | 49 mo ago | 11 | — | Cart FunctionalitySquarespace CommerceSquarespace+12 | 2 patents Machine learning algorithms for sensor data acquisition and interpretation. | — |
| 31 | Caption Data Cloud-based remote monitoring solution for industries | $631K | 91 mo ago | 14 | — | — | — | — |
| 32 | Nanogentech Provider of ultra-fine bubble technology for water oxygenation and other applications | $416K | 66 mo ago | 5 | Douglas Denham St Pinnock Founder | — | — | — |
| 33 | Soil Moisture Sense Provider of water management solutions for agriculture | $367K | 124 mo ago | — | Peter White Founder & Owner | ZURB FoundationAmazon ALBApache HTTP Server+6 | — | — |
| 34 | HydroHammer Developer of zero-carbon water pumps using hydram technology | $289K | 28 mo ago | — | Alexander Rowan Co-Founder | — | 7 patents Hydraulic ram pump technology with composite materials and electronic control systems | — |
| 35 | Odyssey Labs Sensors for measuring salinity in aquaculture facilities | $257K | 105 mo ago | 7 | — | — | — | — |
| 36 | Plantwork Systems Provider of wastewater treatment solutions for commercial and municipal sectors | $135K | 100 mo ago | — | Robert White Founder & Managing Director | — | — | — |
| 37 | Lylo Products Developer of a product that reuses shower water for laundry | $108K | 36 mo ago | — | Paramveer Bhachu Co-Founder | — | — | — |
Top 12 Water and Wastewater Management Tech companies in England
#1
Series A · Southampton, England · founded 2023$5.4Mraised▾
Developer of autonomous ocean drones for real-time data collection services. The drones are designed for deployment in open water environments. They provide continuous data via satellite connectivity. The drones can be launched from shore or boat. The company offers options to buy, borrow, or commission data collection. The drones support environmental monitoring, offshore wind development, and contour following.
- Apr 2026Series A$5.4M
#2
Series A · Daresbury, England · founded 2015 · 24 employees$9.3Mraised▾
Developer of advanced membrane technology for separation and filtration applications. It provides membrane products that address limitations of conventional membrane architectures. The company's technology supports markets including lithium, green hydrogen, desalination, food and beverage, and water and wastewater. It integrates materials, manufacturing, engineering, digitalisation, and AI to reduce the cost and environmental impact of filtration and separation.
- May 2025Series A$2.3M
- Mar 2024Series A$6.3M
- Feb 2023Series A$6.9M
- Oct 2022Seed$957.1K
#3
Seed · London, England · founded 2023$5.1Mraised▾
Provider of AI-based water consumption monitoring platform. It offers an AI-integrated device and application for reducing and controlling the usage of water in buildings. It is compatible with mobile and computer devices.
- Aug 2025Seed$2.7M
- Apr 2024Seed$2.4M
#4
Series A · London, England · founded 2015 · 16 employees$25.8Mraised▾
Provider of water treatment solution. It provides adsorbents to remove pollutants from contaminated water and wastewater. It provides solutions to specifically remove PFAS from water. The technology allows for the synthesis of high-capacity advanced materials. It offers Puratech, a customisable plug-in solution that can be fit into any existing water treatment system saving time and costs.
- Sep 2024Series A$8.8M
- Sep 2023Grant (prize money)$872.3K
- Sep 2023Series A$13.9M
- Apr 2022Grant (prize money)$2M
#5
Series B · Bicester, England · founded 2014 · 25 employees$27.8Mraised▾
Provider of AI-driven solutions for water leak detection and management. It offers tools for non-revenue water reduction and leak investigation. The company’s technology extracts insights from water data to validate results and prioritize events. It helps stakeholders collaborate on water goals, delivering environmental and economic outcomes.
- Oct 2024Series B$20.7M
- Oct 2022Series A$7.1M
- Feb 2022Seed—
- Mar 2020Seed—
#6
Seed · Kidlington, England · founded 2022 · 7 employees$7.8Mraised▾
Provider of materials and services for metal recovery from industrial waste. It offers solutions for the selective recovery of valuable metals from industrial waste streams. Its technology helps purify metals from effluents that would otherwise be discharged. The offerings help reduce carbon emissions, energy consumption, and water contamination.
- Mar 2025Seed$7.8M
- Oct 2022Seed—
#7
Funding Raised · Bristol, England · founded 2008 · 24 employees$2.1Mraised▾
Provider of geospatial products and Earth observation analytics services. Its product portfolio has multiple monitoring and analytics solutions including a global GIS bathymetry package, It is a marine base map, vector shoreline, satellite-derived bathymetry solution, global GIS bathymetry solution, topographic bathymetry solution, satellite-based water quality monitoring, vegetation monitoring, and air quality modeling.
- Apr 2025Grant (prize money)$175K
- Feb 2025Grant (prize money)$175K
- Aug 2024Grant (prize money)$175K
- May 2022Grant (prize money)$100K
#8
Series A · Manchester, England · founded 2020 · 10 employees$6.3Mraised▾
Provider of technology for filtration and production of valuable minerals and clean water
- Nov 2024Grant (prize money)—
- Nov 2024Series A$5.6M
- Nov 2023Seed$59.5K
- Mar 2022Seed$618.8K
#9
Acquired · Livingston, England · founded 2005 · 6 employees$943.7Mraised▾
Provider of AI and web-based smart metering systems. The product offerings include SMETS2 smart meter, Web Analyzer - an energy management tool, AMR DNA - an AI-driven data processing tool, Z link - a demand management tool, and more. Additionally, the company offers gas metering services, water metering services, energy management services, grid development services, and more.
- Oct 2021Conventional Debt$943.7M
#10
Seed · Cambridge, England · founded 2019 · 2 employees$3.5Mraised▾
Operator of a circular waste technology company intended to set new standards in global plastic waste management and recycling. The company's technology converts plastic and other municipal waste into value-added products such as animal feed and electricity with minimal upfront sorting, along with specializes in regenerative plastic technologies, using various sources of heat to drive its patented hydrothermal liquefaction process, enabling firms to solve the global plastic waste problem which threatens our planet and our way of life.
#11
Public · Rotherham, England · founded 2016 · 47 employees$38.8Mraised▾
Manufacturer of the commercial laundry machines
- Mar 2021Post IPO$11.1M
- Apr 2020Post IPO$7.4M
- Dec 2018Post IPO$19.1M
- Jul 2014Grant (prize money)$1.2M
#12
Funding Raised · West Malling, England · founded 2011 · 9 employees$5.1Mraised▾
NVP Energy installs and commissions wastewater treatment projects for industries. Uses anaerobic bacteria convert the organic pollutants present in wastewater to biogas. Claims to reduce chemical oxygen demand(COD) by 80% and total suspended solids(TSD) by up to 50% with 90% less sludge production. Offers feasibility studies, designing, project management, training & after-sales services. Can be used in dairy, metal processing, brewing, distillation & municipal sector.
- Sep 2022Grant (prize money)$48.7K
- Oct 2020Grant (prize money)$1.8M
- May 2018Grant (prize money)$2M
- Jun 2016Grant (prize money)$1.1M
Funding & investor landscape
Notable founders
Market landscape — 10 sub-themes by coverage
Share of Water and Wastewater Management Tech coverage by sub-theme.
Regulatory-risk over time rising
Funding & growth over time
funding rising · growth rising