What Lenntech B.V. does

Lenntech B.V. is a privately held Dutch industrial water treatment company founded in 1993 and headquartered in Delfgauw, the Netherlands, with additional offices in Delft (NL), South Miami (USA — regional HQ), and Dubai (UAE — regional HQ via subsidiary Lenntech DMCC). The company designs, engineers, manufactures, automates, installs, and maintains custom water and wastewater treatment plants for industrial customers, operating a turnkey project delivery model.

The technical core centers on membrane separation — reverse osmosis (including the award-winning Closed Circuit Reverse Osmosis / CCRO platform), nanofiltration, ultrafiltration, and microfiltration — complemented by UV disinfection, ozone generation, chlorine dioxide generation, ion exchange, electrodeionization (EDI), advanced oxidation, and the proprietary ECOSORB biological odor neutralization system. Equipment is supplemented by a broad consumables and components catalog (RO and UF membranes, resins, filtration media, activated carbon, chemicals, instrumentation, Grundfos pumps, control valves, Statiflo static mixers, heat exchangers), plus service offerings including pilot testing, rental units, laboratory testing, and process feasibility assessment.

Lenntech serves oil & gas (BP, Shell, TotalEnergies, ExxonMobil, Petronas, OMV, MOL Hungarian Oil and Gas), mining and metallurgy (Talvivaara, Outokumpu), microelectronics and semiconductor, industrial water supply (also working with Veolia and GE-Water as commercial references), food and beverage, power generation, and municipal customers. Revenue is generated primarily through one-time custom engineered system sales (capital equipment) and recurring maintenance/services, alongside hardware sales and a smaller rental/pilot services stream. Pricing is quote-based with multi-year contracts; the company holds ISO 9001, ISO 14001, OHSAS 45001, and VCA certifications. The company operates a privately held, non-public, independently owned corporate structure with no disclosed institutional investors or external funding.

Name

Lenntech B.V.

Legal name

Lenntech B.V.

Website

https://lenntech.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

Lenntech B.V., founded in 1993 in the Netherlands, designs, manufactures, and installs custom turnkey industrial water and wastewater treatment systems. It serves oil & gas, mining, microelectronics, food and beverage, power, and municipal customers globally via regional offices in the Netherlands, USA, and UAE.

Ownership category

akta.pro rank

Product category

Industrial Water Treatment Systems

NAICS

Water, Sewage and Other Systems (2213), Totalizing Fluid Meter and Counting Device Manufacturing (334514), Polish and Other Sanitation Good Manufacturing (325612)

SIC

Chemicals & Allied Products (2800), Industrial Instruments For Measurement, Display, And Control (3823), Miscellaneous Chemical Products (2890)

akta.pro primary industry

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

akta.pro secondary industries

Water Treatment & Process Specialty Chemicals (IMAEABAN), Industrial Water Reuse Utilities (ZLD/MLD & Process Water Recycling) (EUANAGAG), Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK), Water Treatment Plant Construction (Drinking Water) (IMAFAGAA)

Keywords

• Industrial water treatment
• Membrane filtration systems
• Reverse osmosis systems
• Wastewater treatment solutions
• Turnkey water plants

Headquarters

HQ city

Delfgauw

HQ country

Netherlands

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Custom Engineered Water Treatment Systems: Design, engineering, and manufacturing of custom water treatment plants and systems including turnkey solutions for industrial applications
2. Water Treatment Equipment and Components: Sale of proprietary and third-party equipment including membranes, pumps, filters, UV systems, ozone generators, ion exchange resins, and replacement parts
3. Maintenance and Support Services: Ongoing maintenance, troubleshooting, plant inspection, process optimization, and operational support services for installed systems
4. Rental Units: Rental of mobile and temporary water treatment equipment for short-term or pilot project needs

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Lenntech B.V. designs, engineers, manufactures, and installs custom industrial water and wastewater treatment systems for enterprise customers across multiple sectors. Core offerings encompass membrane-based systems (reverse osmosis, ultrafiltration, nanofiltration, microfiltration), disinfection units (UV, ozone, chlorine dioxide), ion exchange, electrodeionization, and complete turnkey plants delivered with installation, automation, and maintenance services.

Product overview

Lenntech B.V. is a water treatment design and manufacturing company established in 1993, offering a comprehensive portfolio of water treatment, wastewater reuse, and membrane separation solutions. The product portfolio centers on membrane-based treatment technologies including LennRO Industrial and LennRO mini Reverse Osmosis systems, Ultrafiltration units, and Nanofiltration, complemented by disinfection solutions (UV, Ozone, Chlorine Dioxide), Ion Exchange plants/softeners, and Electrodeionization (EDI) systems. Supporting infrastructure includes Deep Filtration, Sediment Filters, Clarification Units, and Advanced Oxidation Units. The company offers a full range of consumable components including RO Membranes, UF Membrane Modules, Ion Exchange Resins, Water Treatment Chemicals, Filtration Media, Bag/Cartridge Filters, Instrumentation & Sensors, Pumps (Grundfos), Control Valves, Heat Exchangers, and Activated Carbon. Service offerings encompass Turnkey Plant design and construction, Containerized Plants for modular deployment, Pilot Units Testing, Rental Units, Maintenance Services, Laboratory Tests, and Process Feasibility Assessment. Specialty solutions include Ecosorb Technology for odor control. Lenntech provides complete turn-key solutions including design, engineering, manufacturing, automation, installation, maintenance, and training, serving multiple industries including Oil & Gas, Mining & Metallurgy, Microelectronics, Food & Beverage, Power Generation, and Municipal water treatment.

Differentiator

Problem solved

Functional benefit

Products and services

• LennRO Industrial Reverse Osmosis Industrial-grade reverse osmosis system for desalination and demineralization of water, designed for large-scale commercial and industrial applications requiring high-purity water.
• LennRO mini Reverse Osmosis Compact reverse osmosis unit for smaller-scale water treatment applications, offering the same desalination technology in a space-efficient format.
• Ultrafiltration Units Membrane-based filtration systems using hollow fiber technology to remove suspended solids, colloids, bacteria, and viruses from water through pore sizes between 1-100nm.
• UV Disinfection Systems Ultraviolet light-based water disinfection systems for destruction of microorganisms, available in low pressure (15W-200W) and medium pressure (0.4kW-7.0kW) lamp configurations operating at 254nm.
• Ozone Disinfection Units Ozone generator systems for water disinfection and oxidation, using ozone's bactericidal properties for treating drinking water and industrial process water.
• Ion Exchange Plants / Softeners Water softening and demineralization systems using ion exchange resin technology to remove calcium, magnesium, and other dissolved salts from water.
• Electrodeionization (EDI) Plants Continuous deionization system combining ion exchange membranes and electrical current to produce high-purity water without chemical regeneration.
• Deep Filtration Systems Multi-media depth filtration systems for removal of suspended solids and particulates from water in pre-treatment and clarification applications.
• Clarification Units Water clarification systems using chemical coagulation and flocculation followed by sedimentation for removal of suspended solids and turbidity.
• ClO2 (Chlorine Dioxide) Generators On-site chlorine dioxide generation systems for water disinfection, providing effective microbiological control without the drawbacks of chlorine.
• Advanced Oxidation Units AOP systems combining oxidizing agents (ozone, hydrogen peroxide, UV) for destruction of resistant organic contaminants and micropollutants.
• Microfiltration System (MFS) Stainless steel microfiltration system with automatic cleaning cycle for solid-liquid separation in pharmaceutical, food processing, and industrial wastewater applications.
• Turnkey Plants Complete design, engineering, manufacturing, automation, installation, and commissioning of custom water treatment plants.
• Containerized Plants Pre-engineered, transportable water treatment plants in modular container format for rapid deployment and flexibility.
• ECOSORB Technology Biological odor neutralization system using natural essential oil compounds for effective elimination of hydrogen sulfide, mercaptans, and volatile organic compounds from industrial exhaust streams.
• Pilot Unit Testing Services Pilot testing services and rental units for feasibility assessment and process optimization prior to full-scale implementation.
• Rental Units Mobile and temporary water treatment equipment rental services for short-term needs, emergency supply, or testing applications.
• Maintenance Services Ongoing maintenance, troubleshooting, plant inspection, process optimization, and technical support services for installed water treatment systems.
• Laboratory Tests Water quality analysis and laboratory testing services including feed water analysis and treated water verification.
• Process Feasibility Assessment Technical consultation and feasibility studies for water treatment process selection and optimization.

Quantifiable outcome

• Water treatment decision support tools and process feasibility assessments available

Named customers11 records

Segments6 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• AquatechcoreStrategic or Co-development PartnerLenntech participated in Aquatech exhibition and was recognized with the Innovation Award for their Closed Circuit Reverse Osmosis technology, indicating a strategic relationship in the water treatment industry exhibition and recognition platform.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Xylem: Public water technology company with strong industrial and utility water treatment franchises. Competes with Lenntech on pumps, treatment systems, and digital water solutions, though at a much larger scale and broader portfolio.
• Veolia Water Technologies: Global water and wastewater services giant with the largest mobile water treatment share (34%). Overlaps Lenntech on industrial water treatment, mobile units, and engineering services, but operates at vastly larger scale across the full water value chain.
• SUEZ Water Technologies & Solutions: Major industrial water treatment and membrane player with comparable offerings in RO, UF, and ion exchange. Lenntech lists GE-Water as a customer/peer, reflecting overlap in chemical, energy, and microelectronics customers.
• Pentair: Water treatment and filtration company with industrial and residential product lines. Overlaps Lenntech on filtration media, RO membranes, and component supply for industrial water treatment systems.
• Ecolab (Nalco Water): Industrial water and process services leader with deep presence in chemicals, food & beverage, and oil & gas. Overlaps Lenntech on chemicals, services, and water treatment chemicals sold alongside treatment systems.

Others

• Hydranautics (Nitto Group): Major RO/NF membrane manufacturer whose membranes Lenntech uses and integrates into systems. Comparable as a key technology supplier and adjacent competitor in membrane-based industrial water treatment.

Emerging players

• Porifera: Forward osmosis membrane specialist cited alongside Lenntech in the Membrane Materials Recycling and Upcycling Market. A more emerging player with narrower technology focus but similar industrial water reuse ambitions.

Direct peers

• WesTech Engineering: Holds 26% of the global mobile water treatment market, making it the closest direct competitor to Lenntech in mobile/temporary water systems. Competes head-to-head on packaged treatment units, clarifiers, and industrial water equipment.
• Aquatech: Industrial water treatment specialist, particularly in desalination, ZLD, and produced water. The partnership is reflected in the Aquatech Innovation Award granted to Lenntech for CCRO, signaling close technology and market overlap.
• Pall Corporation (Danaher): Filtration, separation, and purification specialist serving microelectronics, oil & gas, and pharmaceuticals. Directly comparable to Lenntech on membrane-based filtration and ultrapure water applications.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Subsidiaries3 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 Lenntech B.V.