SILHORKO
SILHORKO is a Danish water treatment solutions provider serving industrial and municipal customers across Europe through filtration, ion exchange, membrane, and UV disinfection technologies. Since 2020, it has been a wholly-owned subsidiary of Grundfos, operating as Grundfos Water Treatment Europe.
- Company typePrivate
- Founded1936
- HeadquartersSkanderborg, Denmark
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What SILHORKO does
SILHORKO (full legal name: Silhorko-Eurowater A/S, rebranding to Grundfos Water Treatment Denmark A/S) is a Danish water treatment solutions provider serving industrial and municipal customers across Europe. The company designs, manufactures, and commissions water treatment systems based on core technologies including pressure filtration, ion exchange (softening, demineralization, mixed-bed, PFAS removal), membrane filtration (reverse osmosis in single-pass, double-pass, and RO-PLUS configurations, plus nanofiltration), electrodeionization (EDI), UV disinfection (Wedeco Spektron series), and deaeration (membrane, thermal, vacuum). Its product portfolio spans compact plug-and-play units (CU:RO series), containerized mobile treatment plants (WTP-C), full-scale industrial installations, and automation controls (SE30/SE40). Notable proprietary technologies include RO-PLUS achieving 60% wastewater reduction, double-pass RO combined with EDI for high-pressure boiler applications, and specialized ion exchange resins for PFAS removal achieving non-detectable levels below 0.1 ng/L. Since 2020, SILHORKO has been a wholly-owned subsidiary of Grundfos, integrated into the newly formed Grundfos Water Treatment Europe business unit, which also encompasses Culligan Commercial & Industrial operations in Italy, France, and England.
The company's revenue model combines one-time equipment sales (capital projects), recurring service and maintenance contracts (nationwide coverage in Denmark with 24/7 emergency support), usage-based rental of mobile water treatment units (for temporary or emergency needs), professional water analysis services, and consumables (salt tablets, replacement parts, filter media). Go-to-market is enterprise field sales through 24 local sales and service offices across Europe, supplemented by 149 dealers worldwide. Primary customer segments are water utilities (municipal drinking water production, PFAS remediation), industrial manufacturing (food and beverage, dairy, pharmaceutical, healthcare), and the energy sector (combined heat and power, district heating, and emerging Power-to-X applications including green hydrogen and e-methanol). Since 2020, the company has positioned for growth in Power-to-X, supplying ultrapure water treatment for electrolysis at notable projects including European Energy's 50 MW e-methanol plant and Andel/Nature Energy's Power-to-Gas facility.
SILHORKO firmographics
Firmographics- Name
- SILHORKO
- Legal name
- Grundfos Water Treatment A/S (tidligere Silhorko-Eurowater A/S)
- Website
- https://silhorko.dk
- Company type
- Private
- Founded year
- 1936
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- SILHORKO is a Danish water treatment solutions provider serving industrial and municipal customers across Europe through filtration, ion exchange, membrane, and UV disinfection technologies. Since 2020, it has been a wholly-owned subsidiary of Grundfos, operating as Grundfos Water Treatment Europe.
- Ownership category
- akta.pro rank
SILHORKO industry classification
Industry- Product category
- Water Treatment Systems
- NAICS
- Water Supply and Irrigation Systems (221310)
- SIC
- Laboratory Analytical Instruments (3826)
- akta.pro primary industry
- Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ)
- akta.pro secondary industries
- Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors) (BPABAJAK), Cooling Tower & Evaporative Condenser Water Treatment (BPABAJAC)
Keywords
Where SILHORKO is headquartered
LocationHeadquarters
- HQ city
- Skanderborg
- HQ country
- Denmark
- HQ region
- Europe
Offices2 records
Markets served
SILHORKO business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Personnel, Supply Chain, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Water Treatment Equipment Sales: Design, manufacture, and sale of water treatment plants including filtration systems, ion exchange units, membrane systems, UV disinfection, and deaeration equipment. Sales through direct enterprise field sales with 24 local offices across Europe.
- Service and Maintenance: Full-service maintenance contracts with nationwide coverage in Denmark. Includes preventive maintenance, emergency support 24/7, and documented service reporting through customer portal.
- Rental of Water Treatment Units: Rental program offering complete mobile water treatment units in containers for temporary water treatment needs during plant upgrades or emergency situations.
- Water Analysis Services: Water testing and analysis services including sampling kits and laboratory testing for water quality assessment.
- Consumables and Spare Parts: Sale of salt tablets for softening systems, hardness test kits, and replacement parts for water treatment equipment.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Water Analysis Service |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
SILHORKO product offering
Product offeringCore offering
SILHORKO designs, manufactures, and services complete water treatment plants for industrial and municipal customers, covering filtration, ion exchange, membrane filtration (reverse osmosis, nanofiltration), electrodeionization, UV disinfection, and deaeration. Offerings range from standard components to turnkey solutions including containerized mobile units, with proprietary technologies such as RO-PLUS (60% water savings) and PFAS removal ion exchange. The company sells under the SILHORKO brand in Denmark and the EUROWATER brand in other European markets.
Product overview
SILHORKO offers a comprehensive portfolio of industrial and drinking water treatment solutions, organized around core technologies including filtration (pressure filters, activated carbon, bag filters), ion exchange (softening, demineralization, mixed-bed systems, PFAS removal), membrane filtration (reverse osmosis including RO-PLUS water-saving technology, nanofiltration), electrodeionization (EDI), UV disinfection (Wedeco Spektron series), and deaeration (membrane, thermal, vacuum). The product range includes standard equipment, compact plug-and-play units (CU:RO series), containerized solutions (WTP-C), and frame-mounted systems. Key product lines include EUREX and SILEX for mixed-bed applications, STFA/SMH for softening, and Spektron for UV disinfection. The company also provides automation controls (SE30/SE40), rental units for temporary needs, and comprehensive service/maintenance programs. Since 2020, SILHORKO has been part of Grundfos and operates internationally under the EUROWATER brand.
Differentiator
Problem solved
Functional benefit
Quantifiable outcome
- 20% reduction in water consumption
- +5 more outcomes
Companies that use SILHORKO
Customer profileNamed customers13 records
Segments4 records
Ideal customer profiles4 records
SILHORKO technology and API
TechnologyAPI detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature6 records
SILHORKO partnerships and signals
Strategic signalPartnerships
13 partnerships are on record, tiered core and minor.
- HOFORcoreCopenhagen's main utility company, purchasing 35 UV disinfection systems for water supply facilities in Denmark's largest UV installation project.
- GrundfoscoreParent company that acquired SILHORKO-Eurowater in 2020. SILHORKO is now being rebranded as Grundfos Water Treatment Denmark A/S as part of Grundfos Water Treatment Europe.
- Culligan Commercial & IndustrialminorPart of Grundfos Water Treatment Europe integration alongside SILHORKO, covering Italy, France, and England operations.
- Aarhus VandcoreAarhus Vand operates the central secondary water system in the Nye district development, collecting and treating rainwater for household use. SILHORKO designed and delivered the complete water treatment solution for this innovative rainwater recycling project.
- COWIminorEngineering consultancy developing the overall water management concept for the Nye sustainable district development in collaboration with infrastructure and other systems.
- Tækkerg gruppenminorDeveloped the comprehensive plan for the Nye district with focus on sustainable principles for the innovative rainwater recycling project.
- Miljøstyrelsen (Danish EPA)minorSupported the Nye secondary water project through MUDP (Environmental Technology Development and Demonstration Programme), providing funding for innovative water solutions.
- Siemens EnergycoreSiemens Energy designed, delivered, and commissioned the 50 MW PEM electrolyzer for the e-methanol plant in Kassøe. SILHORKO provides water treatment for the electrolysis process.
- A.P. Møller - MærskminorCustomer of e-methanol produced at European Energy's facility using SILHORKO-treated ultrapure water. Using green methanol to reduce CO2 emissions in maritime transport.
- LEGO KoncernenminorCustomer of e-methanol from European Energy's facility, using green methanol to make plastic production more sustainable.
- Novo NordiskminorCustomer of e-methanol from European Energy's facility, using green methanol as part of sustainability initiatives.
- AndelcoreEnergy and fiber network company behind the Power-to-Gas plant in Glansager, combining electricity from wind turbines with water treatment solutions for green hydrogen production.
- Nature EnergycoreWorld's largest biogas producer partnering on the Glansager Power-to-Gas facility, using SILHORKO water treatment for biological methanation.
Scale indicators4 records
Recent moves8 records
Expansion highlights6 records
SILHORKO competitors and assessment
Company assessmentBroad incumbents
- Veolia Environnement: Global environmental services and water-utility giant. Operates municipal water contracts and supplies industrial treatment equipment, competing with SILHORKO at the utility and large-industrial tier.
- Xylem: Global water-technology major spanning pumps, treatment, and metering. Xylem's Wedeco UV brand overlaps directly with SILHORKO's Spektron UV line, and its treatment business serves overlapping municipal and industrial customers across Europe.
- Pentair: Diversified water-treatment company offering residential, commercial, and industrial filtration and RO systems. Overlaps with SILHORKO in industrial process water and component-level treatment technologies.
- Ecolab (Nalco Water): Global leader in water treatment chemicals and on-site service programs for industrial customers, with overlapping cooling-water, boiler-water, and process-water applications alongside equipment vendors like SILHORKO.
Direct peers
- Culligan International: Water-treatment company now operating inside Grundfos Water Treatment Europe (sister entity of SILHORKO in Italy, France, England). Overlaps in commercial/industrial softening, RO, and service.
- Ovivo: Canada-headquartered water and wastewater treatment equipment maker serving municipal and industrial clients with membranes, filtration, and process systems. Direct competitor in mid-size European industrial water projects.
- Veolia Water Technologies: Global water-treatment equipment and services division of Veolia, offering RO, ion exchange, filtration, and digital water solutions across municipal and industrial markets. Directly competes with SILHORKO across European industrial and utility accounts.
- Kurita Water Industries: Japanese industrial water-treatment specialist providing RO, ion exchange, and chemicals to semiconductor, pharma, and power customers. Comparable technology stack and industrial customer mix to SILHORKO.
- SUEZ Water Technologies & Solutions: SUEZ's industrial-water unit (sold to CD&R/Roper in 2022), supplying RO, UF, ion exchange, and process-water systems globally. Direct overlap with SILHORKO's industrial membrane and ion-exchange product lines.
Emerging players
- Lenntech: Netherlands-based water-treatment equipment supplier specializing in RO, ultrafiltration, and disinfection for industrial and smaller-utility customers. Competes with SILHORKO's EUROWATER operations in Benelux and adjacent European geographies.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
SILHORKO social profiles
Digital presenceSILHORKO financial estimates
Financial estimateRevenue estimate
Valuation estimate
SILHORKO leadership team
Management profileNumber of profiles
SILHORKO subsidiaries and ownership
Company hierarchySubsidiaries14 records
SILHORKO funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
SILHORKO M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about SILHORKO
What does SILHORKO do?
SILHORKO designs, manufactures, and services complete water treatment plants for industrial and municipal customers, covering filtration, ion exchange, membrane filtration (reverse osmosis, nanofiltration), electrodeionization, UV disinfection, and deaeration. Offerings range from standard components to turnkey solutions including containerized mobile units, with proprietary technologies such as RO-PLUS (60% water savings) and PFAS removal ion exchange. The company sells under the SILHORKO brand in Denmark and the EUROWATER brand in other European markets.
Is SILHORKO a public or private company?
SILHORKO is a private company. It is classified as corporate owned and is currently operating.
When was SILHORKO founded?
SILHORKO was founded in 1936. It employs 101 to 250 people.
Where is SILHORKO based?
SILHORKO is headquartered in Skanderborg, Denmark, in the Europe region.
How does SILHORKO make money?
Five revenue lines are on record. Water Treatment Equipment Sales are the primary driver. The others are service and Maintenance, rental of Water Treatment Units, water Analysis Services and consumables and Spare Parts.
Who are SILHORKO's main competitors?
Broad incumbents on record are Veolia Environnement, Xylem, Pentair and Ecolab (Nalco Water). Direct peers are Culligan International, Ovivo, Veolia Water Technologies, Kurita Water Industries and SUEZ Water Technologies & Solutions. Lenntech is listed as an emerging player.
Does SILHORKO have an API?
No public API is recorded for SILHORKO.
What industry is SILHORKO in?
SILHORKO's product category is Water Treatment Systems. Its primary akta.pro industry code is IMAHAEAJ, Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems), with a secondary code of BPABAJAK, Monitoring & Control (Dosing Systems, Remote Monitoring, Sensors). Its NAICS code is 221310 and its SIC code is 3826.