INTEWA

What INTEWA does

INTEWA GmbH is a privately held German engineering and manufacturing company founded in 1993 in Aachen, operating with 11-50 employees across more than 30 countries through a hybrid direct-sales and channel-partner model. The company designs, manufactures, and distributes modular hardware systems for decentralized water treatment, water reuse (rainwater and greywater recycling), and stormwater infiltration and retention, serving commercial/industrial customers, single-family residential end users, and municipal clients. Its portfolio spans membrane-based greywater treatment (AQUALOOP, certified to NSF 350 Type C up to 100 m³/day), underground tunnel infiltration and storage (DRAINMAX, DIBt-certified, 60-tonne load capacity), self-cleaning rainwater filtration (PURAIN), pump and refill control systems (RAINMASTER, NUVOS inverter pumps), modular chamber/filter construction (PLURAFIT), DIN EN1717 Category 5 backflow prevention (SEPAMAT), DIN 14230 fire water storage tanks, and the I-CONNECT IoT monitoring and control platform.

INTEWA generates revenue primarily through hardware sales of systems and individual components (tanks, pumps, UV systems, control units, filters), supplemented by project-specific professional services including concept development, system dimensioning via its Rainplaner software, CAD drawings, commissioning, and ongoing monitoring. Commercial pricing is quote-based and not publicly disclosed; residential and SMB components are sold through an online storefront. Distribution is anchored by exclusive regional partners (notably Ecovie in the US and HTEC in Northern California) supplemented by an online store and direct project engagement for commercial and industrial clients. Marquee reference projects include Uber Headquarter (San Francisco), Carl Zeiss (Oberkochen), Georgia Tech Kendeda Center (Atlanta), McDonald's (Dortmund), Eataly (Los Angeles), Lidl (Riesa), and the French Embassy (Berlin).

The company's strategic posture is that of a niche Mittelstand specialist scaling organically without disclosed institutional capital, leveraging regulatory certifications (NSF 350, DIBt, DIN EN1717, DIN 14230) and a 115,982+ project reference base as primary competitive assets. Recent strategic activity includes the January 2026 founding of the RainLab international cooperation targeting Southeast Asian urban water resilience, ongoing channel partner expansion across Europe, the MENA region, and the US, and the introduction of the I-CONNECT software/hardware platform as an IoT-enabled layer across the installed product base. The 2020 purpose-built headquarters in Aachen functions as a live demonstration site achieving water autonomy and energy neutrality at under 500 euros/month in total operating costs.

Name

INTEWA

Legal name

INTEWA GmbH

Website

https://intewa.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

11–50 employees

Short description

INTEWA GmbH is a privately held German manufacturer founded in 1993, designing and selling modular hardware systems for greywater recycling, rainwater harvesting, and stormwater management across commercial, residential, and municipal customers in 30+ countries.

Ownership category

akta.pro rank

Product category

Water Treatment and Rainwater Management Systems

NAICS

Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Water Supply and Irrigation Systems (221310)

SIC

Water Supply (4941), Pumps & Pumping Equipment (3561), Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Water Systems & Treatment (Pumps/Boilers/Water Heaters/Filtration) (IMAIABAK)

akta.pro secondary industries

Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK), Water Softener, Filtration & Treatment System Installation (HSAOAAAH), Commercial/Residential Building Water Management & Leak Analytics Services (HSAHAGAK), Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)

Keywords

• Rainwater management systems
• Greywater recycling systems
• Water treatment equipment
• Rainwater harvesting products
• Decentralized water reuse

Headquarters

HQ city

Aachen

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Water Treatment Systems and Components: INTEWA designs, manufactures, and sells water treatment and recycling systems and individual components including tanks, pumps, UV systems, control units, and accessories to commercial and residential customers.
2. Complete System Solutions: Pre-engineered complete systems (e.g., greywater recycling systems up to 100 m³/day) sold as packaged units including treatment, storage, and control components for turnkey installation.
3. Planning and Engineering Services: INTEWA offers project support services including concept development, system dimensioning (Rainplaner software), CAD drawings, commissioning, and ongoing monitoring of installed systems.

Go-to-market motion3 records

Distribution channels3 records

Marketing channels6 records

Core offering

INTEWA designs, manufactures, and sells modular systems and components for rainwater harvesting, greywater recycling, rainwater infiltration/retention, and fire water storage. Core products include the AQUALOOP water treatment system, DRAINMAX Tunnel infiltration/retention rig, PURAIN self-cleaning filters, RAINMASTER pump controls, SEPAMAT system separators, NUVOS inverter pumps, and I-CONNECT IoT monitoring. The company also provides planning, CAD design, dimensioning, commissioning, and monitoring services from concept through operation.

Product overview

INTEWA offers a modular product portfolio for water treatment, water reuse, and rainwater management. The core products include AQUALOOP (pre-packaged water treatment systems), DRAINMAX Tunnel (modular infiltration/retention system), PURAIN (filter series), RAINMASTER (pump control), PLURAFIT (modular chamber/filter construction), SEPAMAT (system separators), NUVOS (inverter pumps), and I-CONNECT (IoT monitoring and control system). These products serve commercial and residential applications across rainwater harvesting, greywater recycling, drinking water production, adiabatic cooling, and fire water storage. Additional accessories include tanks, UV systems, expansion vessels, pumps, controls, and honeycomb blocks. The company has operated since 1993 with over 115,982 projects in more than 30 countries.

Differentiator

Problem solved

Functional benefit

Brands

• AQUALOOP: Water reuse and treatment systems
• DRAINMAX Tunnel
• PURAIN
• RAINMASTER
• PLURAFIT
• SEPAMAT
• NUVOS
• I-CONNECT

Products and services

• AQUALOOP Pre-packaged, certified water treatment systems for greywater recycling and rainwater treatment, enabling water reuse from residential to commercial applications up to 100 m³/day processing capacity. NSF 350 Type C certified for commercial-scale indoor non-potable reuse.
• DRAINMAX Tunnel Modular tunnel system integrating sedimentation, filtration, and control in a single plane for rainwater infiltration, retention, storage, and subsurface irrigation. DIBt-certified, IoT-enabled, load capacity up to 60 tonnes. Used for commercial, residential, and municipal stormwater management.
• PURAIN Self-cleaning rainwater filter series for pre-treatment, available in DN200 and DN300 sizes, meeting Living Building Challenge Water Petal certification requirements (avoidance of "red item list" materials). Used in commercial and residential rainwater harvesting systems.
• RAINMASTER Pump and refill control systems for rainwater utilization, managing water distribution and mains water backup in residential and commercial buildings.
• PLURAFIT Modular chamber and filter construction set for customizing water treatment and management installations in decentralized configurations.
• SEPAMAT System separators protecting drinking water from backflow contamination per DIN EN1717 Category 5, for applications including dental practices, laboratories, agriculture, laundries, and irrigation systems.
• NUVOS Inverter pumps for variable speed operation, optimizing energy consumption in water systems for residential and commercial applications.
• I-CONNECT Control and monitoring system combining hardware and software for remote self-service maintenance and monitoring of water treatment, rainwater management, and fire water storage systems via PC, tablet, or smartphone worldwide.
• GFK-Löschwasserbehälter Underground fiberglass tanks for fire water storage per DIN 14230, available in 15 to 250 m³ storage volume for emergency fire suppression in decentralized configurations.
• INTEWA Planning and Engineering Services Full-cycle project support from concept development, pricing, and Rainplaner-based system dimensioning through CAD drawings, contractor supervision, commissioning, and ongoing monitoring. Sold as a professional service alongside hardware systems for both commercial and residential customers.

Quantifiable outcome

• Up to 65% potable water savings with greywater recycling systems used as operational water
• +3 more outcomes

Named customers10 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Twelve partnerships are on record, tiered flagship, core and regional.

• RainLabflagshipStrategic or Co-development Partner · 1 January 2026International cooperation founded January 2026 to create climate-resilient, water-saving environments for rapidly growing cities in Southeast Asia. INTEWA collaborates with OMGEVING, Sieker, and Water Solutions South-East Asia for advanced rainwater management solutions. RainLab is organized under the RAINLAB Organisation.
• EcoviecoreChannel Partner/ Reseller/ DistributorExclusive distribution partner for INTEWA products in the USA. Contributed to implementation at the Uber Headquarter project (San Francisco) and Kendeda Building (Atlanta). Also collaborated with HTEC on major commercial projects.
• Heat Transfer Equipment Company (HTEC)coreChannel Partner/ Reseller/ DistributorOnly provider of Aqualoop technology in Northern California. Designed and implemented the water system at the Uber Headquarter project in close cooperation with Ecovie.
• Mijn WaterfabriekregionalChannel Partner/ Reseller/ DistributorRegional sales partner representing INTEWA in the Netherlands. Exhibited alongside INTEWA at AQUATECH Amsterdam 2023.
• AQUAPURE SystemsregionalChannel Partner/ Reseller/ DistributorRegional sales partner representing INTEWA in France. Exhibited alongside INTEWA at Pollutec Lyon 2023.
• EnvirotroleregionalChannel Partner/ Reseller/ DistributorRegional partner exhibiting INTEWA products at Techniques trade fair in Montpellier, France (November 2024).
• MPI s.c.regionalChannel Partner/ Reseller/ DistributorRegional partner representing INTEWA in Poland. Exhibited at WodKan Tech Fair (PTAK WARSAW EXPO, September 2024, Stand D1.10a).
• BeyondexregionalChannel Partner/ Reseller/ DistributorRegional sales partner representing INTEWA in Egypt. Exhibited INTEWA technologies at WATREX Expo in Cairo (Stand F16).
• ECOSPAIregionalChannel Partner/ Reseller/ DistributorRegional partner representing INTEWA in Spain. Exhibited at Firhàbitat trade fair in Avià (May 2024).
• OMGEVINGflagshipStrategic or Co-development PartnerStrategic partner in the RainLab international cooperation focused on rainwater management and climate resilience in Southeast Asian cities.
• SiekerflagshipStrategic or Co-development PartnerStrategic partner in the RainLab international cooperation focused on rainwater management and climate resilience in Southeast Asian cities.
• Water Solutions South-East AsiaflagshipStrategic or Co-development PartnerStrategic partner in the RainLab international cooperation focused on rainwater management and climate resilience in Southeast Asian cities.

Scale indicators7 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• ACO Group: Global manufacturer of drainage, stormwater management, and water treatment systems. Overlaps with INTEWA in decentralized stormwater/infiltration but operates at much larger scale across multiple construction segments.
• Wilo SE: Global pump and pumping system manufacturer headquartered in Germany. Comparable to INTEWA's RAINMASTER/NUVOS pump business but operates as a broad incumbent across HVAC, water supply, and drainage applications.
• Kingspan Water & Energy: Division of Kingspan Group providing rainwater harvesting, stormwater management, and energy systems globally. Competes with INTEWA in commercial rainwater systems but as part of a much broader building products portfolio.
• Watts Water Technologies: US-listed manufacturer of water safety, flow control, and treatment products for residential and commercial buildings. Overlaps with INTEWA in plumbing-side filtration, backflow prevention (SEPAMAT analogue), and water reuse components.
• Xylem Inc. Large global water technology company offering pumps, treatment, and metering solutions. Adjacent competitor in water treatment and pumping equipment, with much greater scale and service network than INTEWA.

Direct peers

• Graf Group (Otto Graf GmbH): German manufacturer of plastic rainwater harvesting tanks, infiltration systems, and water management products. Directly comparable to INTEWA in underground storage, infiltration/retention, and residential water reuse offerings.
• Rewatec (Premier Tech): Brand of Premier Tech focused on rainwater harvesting and stormwater management systems across Europe. Direct peer in decentralized rainwater storage and infiltration, often competing on residential and commercial tenders.
• Wisy AG: German manufacturer of rainwater filters and filtration systems for building-scale rainwater harvesting. Direct peer to INTEWA in PURAIN/PURAIN-style pre-filtration and residential/commercial rainwater utilization across DACH and export markets.
• 3P Technik Filtersysteme GmbH: German specialist in rainwater and greywater filtration, separation, and treatment components. Comparable to INTEWA across residential and commercial rainwater harvesting product lines and European channel structure.

Regional players

• Stormsaver (UK): UK-based provider of rainwater harvesting and stormwater management systems for commercial and residential buildings. Comparable product offering to INTEWA's DRAINMAX/PLURAFIT but primarily serves the UK market with limited continental Europe presence.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/intewa

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 INTEWA