Gep Water B.v.

What Gep Water B.v. does

GEP Water B.V. is a privately held Dutch manufacturer founded in 2000 by Fred Prins and Sander van Langeveld, specializing in decentralized water management systems. The company designs, produces, and installs in-house a full portfolio covering rainwater harvesting (storage tanks, filters, pumps), greywater recycling, wastewater pumping stations, drinking water break tanks, infiltration systems, and aquathermy heat wells that extract thermal energy from stored rainwater for use with heat pumps. Three proprietary brands — Varitank (tanks), Trident (filters), and IRM Watermanagers (smart controllers) — anchor the product family, with patented technology in the Flexoline flat tank and the energy-from-rainwater system. Manufacturing is largely in-house, and products carry KIWA, Belgaqua, and DVGW certifications across the Netherlands, Belgium, and Germany.

The company monetizes across three streams: direct product sales via its own e-commerce shop and wholesale trade (tussenhandel), engineering/installation/commissioning services for residential, commercial, and government projects, and ongoing service/maintenance contracts from its own service department. GEP sells directly to homeowners and SMBs, to enterprise and government customers (e.g., De Doelen Rotterdam, BlueCity, Boijmans Van Beuningen, ABN AMRO, Keukenhof), and through installation-company resellers. Marketing combines a deep content/blog library, the regenwater.com self-calculation tool, an active YouTube presence anchored by Fred Prins, and trade show participation across the Benelux and Germany. Customer segments are split horizontally across private residential, residential new construction, utility/commercial buildings, government/public sector, and wholesale trade — with regulatory tailwinds from municipal hemelwaterverordeningen, BREEAM certification requirements, and the Omgevingswet anchoring demand.

Name

Gep Water B.v.

Legal name

GEP Water B.V.

Website

https://gepwater.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

11–50 employees

Short description

GEP Water B.V. designs and manufactures decentralized water management systems — rainwater harvesting, greywater recycling, wastewater, drinking water, and aquathermy heat wells — serving homeowners, utilities, and governments across the Netherlands, Belgium, and Germany.

Ownership category

akta.pro rank

Product category

Decentralized Water Management Systems

NAICS

Water Supply and Irrigation Systems (221310), Water Supply and Irrigation Systems (22131), Pump and Compressor Manufacturing (33391)

SIC

Water Supply (4941), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Onsite/Decentralized Reuse Utilities (District/Building‑Scale Reuse as a Service) (EUANAGAH)

akta.pro secondary industries

Water Resources Administration (Watersheds, Rivers, Groundwater) (BPAIAMAE), Controller/Timer & Smart Irrigation Setup (Wi‑Fi, Sensors) (HSAIAEAD)

Keywords

• Rainwater harvesting systems
• Decentralized water management
• Greywater recycling systems
• Aquathermy heat wells
• Wastewater pumping stations

Headquarters

HQ city

Arkel

HQ country

Netherlands

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B and B2C

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Product sales: Sale of proprietary water management products including rainwater tanks, filters, pumps, breaktanks, infiltration systems, greywater systems, wastewater pumps, and aquathermy wells. Sold through direct e-commerce shop, wholesale trade, and direct sales.
2. Engineering, installation and project services: GEP designs, engineers, installs, and commissions water management systems for residential and commercial projects. Offers advisory services for compliance with local hemelwaterverordening (rainwater ordinances) and BREEAM certification.
3. Service and maintenance: GEP operates its own service department for project commissioning, service, and maintenance. Offers separate maintenance contracts for ongoing support.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels8 records

Core offering

GEP Water designs, manufactures, and supplies decentralized water management systems covering rainwater harvesting, greywater recycling, drinking water (breaktanks), wastewater pumping, infiltration, and aquathermy. Products are developed and produced in-house at GEP's Arkel facility, certified to KIWA, Belgaqua, DVGW, and EN1717 standards, and sold directly via e-commerce and the Gorinchem Experience Center, through wholesale trade, and via direct enterprise/government project sales including engineering, installation, and maintenance services across the Netherlands, Belgium, and Germany.

Product overview

GEP Water offers a comprehensive portfolio of water management products organized under three main sub-brands: Varitank (rainwater tanks), Trident (rainwater filters), and IRM (water managers). The core product line includes rainwater harvesting and storage systems (tanks, pumps, filters), greywater recycling systems, drinking water break tanks, wastewater pumping stations, infiltration systems, and aquathermy heat pumps. The Varitank Regenwatertanks and Trident Regenwaterfilters form the foundation of their rainwater solutions, while IRM Watermanagers provide intelligent switching and control. Aquathermy products (heat wells ranging from 3.5 kW to 10 kW) extend the offering to energy recovery from rainwater. The product range is completed with accessories like retention hoses, tank covers, and filter baskets.

Differentiator

Problem solved

Functional benefit

Brands

• Varitank: Regenwatertanks (rainwater tanks) - one of three product brands in GEP's portfolio
• Trident
• IRM

Products and services

• Regenwatertanks (Varitank) — rainwater storage tanks

Quantifiable outcome

• 50% drinking water bill reduction for typical household using rainwater for toilet flushing, washing machine, and garden irrigation
• +5 more outcomes

Named customers7 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Seven partnerships are on record, tiered major, minor and core.

• Zinco BeneluxmajorImplementation/ SI/ Consulting PartnerZinco Benelux commissioned GEP Watermanagement as the installation partner for the De Doelen Rotterdam green roof project. Zinco specializes in green roof and roof garden systems. GEP installed the rainwater retention and management components within the Zinco Meteo Active multifunctional roof system.
• Kraaijvanger ArchitectenmajorStrategic or Co-development PartnerKraaijvanger Architecten was the architect for the De Doelen Rotterdam project, which featured an innovative green roof with integrated rainwater retention. GEP Watermanagement supplied and installed the rainwater system for this award-winning project.
• DeltavormgroepminorStrategic or Co-development PartnerDeltavormgroep supplied planting for the De Doelen Rotterdam green roof project. Planting and vegetation are integral to the rainwater retention and evapotranspiration system.
• Cruydt HoeckminorStrategic or Co-development PartnerCruydt Hoeck supplied native plant species (84 species listed) for the De Doelen Rotterdam green roof, contributing to biodiversity and evapotranspiration performance.
• Van der TolminorStrategic or Co-development PartnerVan der Tol was the landscape gardener (hovenier) for the De Doelen Rotterdam green roof and multifunctional roof installation.
• Klimaatkrachtig DelflandcoreStrategic or Co-development PartnerGEP Water is a partner in the Klimaatkrachtig Delfland network, a climate resilience initiative. This reflects GEP's active involvement in regional climate adaptation collaborations.
• Expertgroep Circulair Water (ECW) / Water AlliancecoreStrategic or Co-development PartnerFred Prins contributed to the Expertgroep Circulair Water (ECW), a working group within ENVAQUA (now Water Alliance) that advises the Dutch government on circular water use in the built environment. Fred is also a member of AWP Hollandse Delta water board.

Scale indicators8 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Otto Graf GmbH (Graf): German manufacturer of rainwater harvesting tanks, infiltration systems, and decentralized water management products for residential and commercial use. Direct competitor to GEP in concrete and plastic rainwater storage across the DACH and Benelux markets, with overlapping product categories.
• WISY AG: German manufacturer of rainwater harvesting filters, vortex separators, and household rainwater systems. Direct competitor to GEP in rainwater filtration and reuse for residential and commercial buildings.
• 3P Technik Filtersysteme: German specialist in rainwater filters, vortex fine filters, and clean-water system components. Direct competitor to GEP's Trident filter line and infiltration/retention accessories across the DACH and Benelux specification market.
• Intewa GmbH: German manufacturer of decentralized rainwater, greywater, and heat-from-water systems including the Rainmaster and HeatPump-Module products. Highly comparable niche specialist addressing the same building-scale decentralized reuse and aquathermy applications as GEP.

Broad incumbents

• ACO Ahlmann: European manufacturer of drainage, stormwater management, and water treatment systems for buildings, civil, and infrastructure projects. Directly comparable in the drainage, rainwater retention and infiltration categories where GEP competes, but with broader construction-portfolio scope.
• Kingspan Water & Energy: Division of Kingspan Group providing rainwater harvesting tanks, separators, and stormwater management products. Comparable because it sells certified rainwater and water management systems into residential and commercial new-build markets that overlap with GEP's.
• Premier Tech Water and Environment: Provider of decentralized stormwater, wastewater, and water reuse solutions for residential, commercial, and municipal markets. Comparable in decentralized water treatment and reuse, though at broader North-American/international scale.
• Wavin (Orbia): Global plastic pipe and water management systems provider serving building, infrastructure, and water utility markets. Comparable because Wavin's water management portfolio (rainwater, drainage, infiltration) overlaps with GEP's decentralized offering, though at much larger scale and broader construction-industry scope.
• Saint-Gobain PAM (Hydroplus / Pam Building): Major European supplier of building water systems, drainage, and infrastructure products serving similar municipal and commercial specifications. Adjacent competitor in drainage and rainwater management within broader construction supply portfolios.

Regional players

• Regenwetter / Regenwater Centraal: Dutch specialist retailer/installer of rainwater harvesting systems for the Netherlands residential and small commercial market. Regional direct competitor specifically in the SMB/homeowner segment where GEP also sells via its own webshop and tussenhandel channel.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/gepwater
• Facebookfacebook.com/hashtag/waterrethinkers
• LinkedInlinkedin.com/company/gep-watermanagement-b-v

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries6 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 Gep Water B.v.