Name

Hydro International

Legal name

Hydro International Ltd

Website

https://hydro-int.com

Company type

Private

Founded year

1980

Operating status

Operating

Headcount range

251–500 employees

Ownership category

akta.pro rank

Product category

Water Management Equipment

NAICS

Pump and Compressor Manufacturing (33391), Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914)

SIC

Pumps & Pumping Equipment (3561), Construction, Mining & Materials Handling Machinery & Equip (3530)

akta.pro primary industry

Real-Time Monitoring & Smart Stormwater (Sensors, SCADA/IoT, RTC) (EUANAEAK)

akta.pro secondary industries

Water, Wastewater & Stormwater Compliance (BPAHAJAJ), Water Quality & Watershed/Hydrologic Modeling (SWMM/HEC-RAS, Flood/Runoff/Nutrient) (EUAHAKAF), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK)

Keywords

• Water management products
• Stormwater treatment systems
• Vortex flow control
• Wastewater treatment equipment
• Hydrodynamic separators

Headquarters

HQ city

Clevedon

HQ country

United Kingdom

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Water Management Products: Sale of proprietary water management hardware including flow controls, stormwater separators, filters, and CSO screening systems. Products are sold directly to municipal utilities, engineering firms, and industrial customers.
2. Services and Consulting: Hydrometry, flood risk management, and water resources consulting services including data analysis, monitoring, and modeling. Provides support for design, installation, operation and maintenance of water management systems.
3. Parts and Spares: Supply of replacement parts and components for Hydro International equipment to ensure continued performance and reduce system downtime.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels6 records

Core offering

Hydro International designs, manufactures, and sells proprietary water management hardware for municipal, industrial, and construction customers, including precision-engineered vortex flow control valves (Hydro-Brake), hydrodynamic stormwater separators and filters (Up-Flo Filter, Downstream Defender, Hydro DryScreen, First Defense), CSO screening systems (Storm King, Heliscreen, Hydro-Static Screen), and wastewater headworks equipment (HeadCell, Hydro GritCleanse, Hydro MicroScreen). The company supplements this product portfolio with hydrometric monitoring and water resources modelling software (Hydro-Logic Aquator), specialist consulting services in hydrometry and flood risk management, a UK wastewater services team for inlet works maintenance (M&N), and parts and spares supply. All products and services are sold direct to enterprise customers and through an 80+ distributor network spanning ~40 countries, with pricing by custom quotation.

Product overview

Hydro International provides a portfolio of advanced water management products, services, and expertise spanning flow control, stormwater treatment, wastewater treatment, industrial water management, CSO screening, and hydrometry/monitoring. The core product line centres on vortex flow controls (Hydro-Brake Optimum, Hydro-Brake Drop, Hydro-Brake Flood) for flood protection and sustainable drainage, and hydrodynamic separators and filters (Up-Flo Filter, Hydro DryScreen, Downstream Defender/Downstream Defender Select, Storm King, First Defense) for stormwater and CSO treatment. Wastewater treatment headworks are served by Hydro GritCleanse, HeadCell, and Hydro MicroScreen, with DAF and drum screen technology added for industrial customers. The Hydro-Logic platform provides water resource modelling software (Aquator) and smart monitoring/telemetry products. Services include specialist consulting (hydrometry, flood risk, water resources), the M&N UK wastewater services team, and parts & spares supply. Recent additions include modular Moving Bed Filter and Sand-Cycle smart monitoring through a partnership with Brightwork.

Differentiator

Problem solved

Functional benefit

Brands

• Hydro-Brake: Vortex flow control product line including Hydro-Brake Optimum and Hydro-Brake Drop for flow control and flood protection.
• Up-Flo Filter
• Downstream Defender
• Hydro DryScreen
• First Defense
• HeadCell
• Hydro GritCleanse
• Hydro MicroScreen
• Hydro-Logic
• Storm King
• Heliscreen
• Hydro-Static Screen
• Stormbloc Optimum
• Sand-Cycle

Products and services

• Hydro-Brake Optimum Precision-engineered vortex flow control valve providing self-activating, unpowered flow management for sustainable drainage, flood protection, and low-impact development (LID) projects from single sites to large networks. Targets water utilities, municipal authorities, and civil engineering customers.
• Up-Flo Filter Advanced stormwater treatment system combining sedimentation, screening, and filtration to capture sediment, oils, heavy metals, and nutrients from stormwater runoff, achieving TSS removal rates up to 98% (verified to 80%). Used by municipal, industrial, and construction customers.
• Hydro DryScreen Next-generation baffle box that screens and captures stormwater trash, organic matter, and sediment, storing materials dry to prevent nutrient leaching. Features a patented flow diffuser and maintenance intervals up to 4x longer than conventional screening technologies. Sold to municipal, industrial, and construction customers; California Water Board Full Trash Capture approved.
• Downstream Defender Hydrodynamic separator optimised for stormwater treatment, removing gross solids, floatables, and sediment through vortex separation to protect the environment from combined sewer overflow and stormwater runoff pollution. Certified by NJDEP, Florida DEP, California Water Board, and Virginia DOT.
• Downstream Defender Select Modular next-generation hydrodynamic separator optimised for stormwater treatment, offering scalable configuration for varying catchment requirements. Targets municipal and industrial stormwater applications.
• Hydro-Brake Drop Vortex water conveyance system for safely channelling water or effluents while protecting infrastructure from damage, vibration, odours, and hydrogen sulphide corrosion. Sold to municipal and industrial customers.
• Hydro-Brake Flood Vortex flow control device specifically designed for flood alleviation schemes, providing reliable flood protection for homes, businesses, and infrastructure. Used by municipal authorities and developers.
• Heliscreen Powered, self-cleaning CSO screen providing high-efficiency screening of combined sewer overflows with a small footprint, maintaining treatment performance during high-flow conditions. Sold to municipal wastewater utilities.
• Hydro-Static Screen Screen for combined sewer overflows (CSOs) filtering gross solids and floatables at intermittent overflow sites, providing protection for downstream waterways. Sold to municipal wastewater utilities.
• Storm King CSO screening and treatment vortex separator that prevents 100% of floatables and gross solids and 95% of particles and sediments from being discharged into the environment by combined sewer overflow events. Sold to municipal wastewater utilities.
• First Defense Oil-grit separator and hydrodynamic stormwater separator for removing trash, sediment, and oil from stormwater runoff, available in standard and high-capacity configurations. The first stormwater separator verified through ISO 14034 standard in Canada. Sold to municipal and industrial customers.
• Hydro GritCleanse Fluidized bed grit washing system optimised to produce clean, dry grit for wastewater treatment plants, reducing sludge handling costs and protecting downstream processes from abrasion and clogging. Sold to municipal wastewater utilities.
• HeadCell Headworks screening system providing multi-tier fine screening for wastewater treatment plant inlet works, designed to protect downstream processes from rag and large solids. Sold to municipal wastewater utilities (e.g., Atlanta HeadCell upgrade won the 2018 DBIA Top Project Award).
• Hydro MicroScreen Rotating belt screen technology for industrial and municipal water treatment, drastically reducing cost, footprint, and energy consumption compared to conventional screening systems. Selected as a Top Project 2018 by Industrial Water & Wastes Digest.
• Hydro-Logic Aquator Industry-leading water resources modelling software enabling detailed scenario modelling for water resource planning, flood risk assessment, and drought management, acquired from Oxford Scientific Software. Sold to water utilities, environmental agencies, and engineering consultants.
• Hydro-Logic Smart Monitoring Range of smart monitoring products and services including data loggers, telemetry, databases, and analysis systems providing real-time, real-world insight into environmental, network, and system conditions for flood warning and water management. Acquired via Hydro-Logic Ltd. Sold to utilities, environmental agencies, and flood authorities.
• M&N Wastewater Services UK-based wastewater services team (M&N Electrical and Mechanical Services) providing supply, service, maintenance, repair, and refurbishment of inlet works equipment at sewage treatment works, 24/7, 365 days a year. Sold to UK water utilities and municipal wastewater authorities.
• Consulting Services Specialist hydrometry, flood risk management, and water resources consultancy services providing data, analysis, and advisory support to help customers understand water management issues and design effective systems. Sold to water utilities, environmental agencies, industrial customers, and engineering firms.
• Parts & Spares Supply of spare and replacement parts for all Hydro International equipment to maintain operational performance and reduce system downtime. Sold to existing customers across municipal, industrial, and construction segments.
• Moving Bed Filter (via Brightwork Partnership) Modular tertiary wastewater treatment technology launched in partnership with Brightwork, designed for quick installation and operational efficiency at UK wastewater treatment plants. Targets UK water companies seeking regulatory compliance.
• Sand-Cycle Smart Monitoring (via Brightwork Partnership) Smart monitoring technology for tertiary wastewater treatment, launched as part of the Brightwork partnership to support long-term resilience and regulatory compliance at UK wastewater treatment plants.

Quantifiable outcome

• Up-Flo Filter achieves up to 98% TSS removal (verified to 80%)
• +4 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration3 records

Feature10 records

Partnerships

Five partnerships are on record, tiered core and minor.

• BrightworkcoreStrategic or Co-development Partner · 19 May 2026Partnership with Netherlands-based Brightwork to launch advanced tertiary wastewater treatment solutions in the UK. The partnership combines Hydro International's products with Brightwork's modular Moving Bed Filter technology and Sand-Cycle smart monitoring to help UK water companies meet stricter discharge regulations. The offerings aim to facilitate quick installation, operational efficiency, and long-term resilience for wastewater treatment plants.
• Thunip Corporation Ltd.coreStrategic or Co-development PartnerJoint venture with Thunip Corporation Ltd. creating a Chinese company to deliver Hydro International products locally within China. This partnership enables local manufacturing and distribution of water management solutions in the Chinese market.
• UrgarbiminorChannel Partner/ Reseller/ DistributorSpanish distributor partner that conducted eight-month real-world testing of Downstream Defender and Up-Flo Filter at Pasaia port in Spain, demonstrating 78-90% pollution capture rates. Provides local sales and technical support for Hydro International products in Spain.
• Oldcastle Infrastructure / CRHcoreOthersParent company relationship. Hydro International was acquired by Oldcastle Infrastructure, which is part of CRH (Building Materials Solutions). Hydro International and Oldcastle Infrastructure are CRH companies operating under the same corporate umbrella with shared resources and market reach.
• University of ExeterminorStrategic or Co-development PartnerTwo-year research partnership with University of Exeter to advance wastewater grit removal technology. The project optimized Hydro International's stacked tray design and opens up new performance upgrade pathways.

Scale indicators4 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Pentair: Large diversified water treatment and flow company serving residential, commercial and industrial markets. Competes with Hydro International in filtration, treatment and flow control, particularly in industrial process water and stormwater.
• Xylem: Global water technology company providing pumps, treatment, metering and digital solutions to municipal and industrial customers. Directly overlaps Hydro International's flow control, wastewater treatment and stormwater portfolios but at far greater scale across more verticals.
• Oldcastle Infrastructure: CRH-owned sister company of Hydro International providing stormwater, drainage and infrastructure products across North America. Operates adjacent product lines and shared corporate parent, making it the most structurally connected peer.
• Suez Water Technologies & Solutions (Veolia): Global environmental services and water technology provider offering treatment chemicals, equipment and digital services to industrial and municipal customers. Overlaps with Hydro International's industrial water treatment and monitoring portfolio.
• Mueller Water Products: North American-focused water infrastructure provider of valves, hydrants and pipe products. Overlaps with Hydro International's flow control and stormwater management offerings for municipal water and wastewater utilities.

Direct peers

• Advanced Drainage Systems (ADS): Leading manufacturer of stormwater management and drainage products (pipes, chambers, separators) for civil and environmental infrastructure. Directly comparable to Hydro International's stormwater conveyance, attenuation (e.g. Stormbloc) and treatment product lines.
• Aqua-Aerobic Systems: US-based manufacturer of wastewater treatment and filtration equipment for municipal and industrial applications. Comparable product overlap in headworks screening, filtration and biological treatment versus Hydro International's HeadCell, Up-Flo Filter and MicroScreen lines.
• ACO Drainage (ACO Group): Specialist in surface water management, drainage channels, separators and SuDS solutions for commercial, civil and infrastructure projects. Closely comparable to Hydro International's flow control and stormwater treatment portfolio with similar project/specification sales motion.

Regional players

• WABAG (VA Tech Wabag): India-headquartered pure-play water and wastewater treatment company focused on municipal and industrial EPC and plant services, primarily serving emerging markets. Comparable in municipal wastewater treatment to Hydro International, but with a different geographic and delivery model.

Others

• Itron: Smart water metering and network monitoring provider for utilities. Comparable to Hydro International's Hydro-Logic smart monitoring / telemetry offering and relevant to the digital water extension of the business, though not a direct competitor in flow control hardware.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks1 record

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hydro-international-plc
• Xx.com/Hydro_Int

Compliance13 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries4 records

Funding overview

Funding rounds

Investors

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

M&A6 records

Investments

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

Frequently asked questions about Hydro International