ELYSATOR Engineering

What ELYSATOR Engineering does

ELYSATOR Engineering AG is a privately-held Swiss manufacturer founded in 1970 by Heinrich Rickenbacher in Zürich and now headquartered in Bilten, canton of Glarus. The company specializes in chemical-free technical water treatment for closed-loop heating, cooling, and industrial water circuits, with a product portfolio organized across four brand families: ELYSATOR/H2O GUARD/SorB Ox for corrosion protection via electrochemical sacrificial anodes, pH regulation, degassing, and magnetic flux filtration; PUROTAP/H2O DESAL for demineralization and deionization through ion exchange resins, reverse osmosis hyperfiltration, and cartridge-based filtration; Sanol/Sanomat for system cleaning and flushing; and a water analytics instrument line including Bluetooth-enabled conductivity and pH monitoring devices. The company has produced more than 50,000 cumulative units since 1970 and operates at approximately 400 tonnes of annual production capacity out of a newly expanded facility in Bilten that opened in May 2025.

The company sells through a hybrid go-to-market combining a dedicated Swiss field sales team, international sales leadership covering 17 countries, an exclusive technical service partnership with Berger Boiler-Service AG, and a wholly-owned German subsidiary (ELYSATOR GmbH) that was fully integrated into the Swiss parent in March 2026. Revenue is generated through four streams: capital-equipment hardware sales (one-time large-ticket industrial systems and smaller residential/commercial units), a recurring consumables business anchored by proprietary PUROTAP and H2O DESAL cartridges with defined lifespans (e.g., L60 rated to 60,000L), equipment rental via the aqua mobil and aqua ronda mobile service trailers, and technical service/maintenance delivered through Berger Boiler-Service AG. End customers span residential homeowners, HVAC contractors, industrial facilities (power plants, marine vessels, waste incineration), and district heating network operators. Pricing is quote-based and not publicly disclosed; ISO 9001, ISO 14001, and Synesgy ESG certifications back the company's positioning as a Swiss-made, standards-compliant reference solution in European heating-water treatment.

The company is led by Managing Director Rolf Frei (since 2017), operates with approximately 20-25 employees, has remained founder/management-controlled with no disclosed external investment, and celebrated its 55th anniversary in September 2025. Recent strategic emphasis has been on cartridge ecosystem deepening, mobile service solutions for large infrastructure (aqua mobil delivering up to 120 m³/day; aqua ronda for systems from 15 m³), and corporate consolidation of the German subsidiary — all oriented toward the European energy-transition tailwind for chemical-free, standards-compliant heating-water treatment.

Name

ELYSATOR Engineering

Legal name

ELYSATOR Engineering AG

Website

https://elysator.com

Company type

Private

Founded year

1970

Operating status

Operating

Headcount range

11–50 employees

Short description

ELYSATOR Engineering AG is a privately-held Swiss manufacturer, founded in 1970, that designs and produces chemical-free electrochemical and ion-exchange water treatment devices for heating, cooling, and industrial closed-loop systems, selling hardware, consumable cartridges, mobile service trailers, and technical service to residential, commercial, and industrial customers across 17 countries.

Ownership category

akta.pro rank

Product category

Water Treatment Equipment

NAICS

Pump and Compressor Manufacturing (33391), Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Totalizing Fluid Meter and Counting Device Manufacturing (334514)

SIC

Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Pumps & Pumping Equipment (3561), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Closed-Loop Heating/Chilled Water Treatment (Corrosion/Scale/Biocide) (BPABAJAE)

akta.pro secondary industries

Water & Wastewater Treatment Plant Equipment (Clarifiers, Aeration, Membrane Systems) (IMAHAEAJ), Membranes, Consumables & Chemicals (Elements, Antiscalants, Cleaning) (EUANAFAJ)

Keywords

• Water treatment equipment
• Corrosion protection systems
• Heating water treatment
• Water demineralization systems
• Industrial water filtration

Headquarters

HQ city

Bilten

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Water Treatment Hardware Sales: Sale of manufactured water treatment devices including ELYSATOR corrosion protection units, H2O GUARD systems, PUROTAP demineralization stations, SorB Ox units, Sanomat flushing equipment, and water analytics instruments. Hardware is sold through direct sales teams and channel/installer partners. Single large-ticket purchases (industrial systems) as well as recurring unit sales (residential/commercial).
2. Consumables and Replacement Cartridges: Recurring revenue from replacement cartridges, ion exchange resin, filter membranes, anodes, and accessories. Cartridges are designed for specific device models with defined lifespans (e.g., PUROTAP L60 highpower rated to 60,000L at 1 degree French hardness). Used cartridges can be recycled.
3. Equipment Rental: Rental of water treatment equipment for temporary or project-specific deployments. Rented equipment includes PUROTAP profi.1, Sanomat Berger S-20 flushing device, PUROTAP expert, and H2O GUARD 60v for filtration projects.
4. Technical Service and Maintenance: Technical customer service, maintenance, and repairs delivered through exclusive service partner Berger Boiler-Service AG. Includes annual inspection recommendations, anode replacement, and system optimization services.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels7 records

Core offering

ELYSATOR Engineering AG manufactures and sells chemical-free technical water treatment equipment for closed-loop heating, cooling, and industrial water circuits. The portfolio covers electrochemical corrosion protection devices, ion exchange and reverse osmosis demineralization stations, system flushing equipment, and water analytics instruments, sold through direct sales, a German subsidiary, and a network of heating installers and service partners across 17 countries.

Product overview

ELYSATOR Engineering AG is a Swiss manufacturing company specializing in technical water treatment for heating, cooling, and industrial water circuits. The product portfolio is organized into four main brand families: (1) Corrosion protection devices under the ELYSATOR, H2O GUARD, and SorbOx brands, combining sacrificial anode protection, degassing, magnetic filtration, and pH regulation; (2) Water demineralization/deionization under the PUROTAP and H2O DESAL brands, featuring ion exchange cartridges, reverse osmosis systems, and filtration cartridges for fill water, make-up water, and circulating water treatment; (3) System cleaning products under the Sanol brand, including the Sanol H-15 green dispersant, Sanol express pre-filled cartridges, and Sanomat Berger S-20 flushing equipment; and (4) Water analytics instruments including conductivity meters, pH meters, hardness test kits, and smart measuring devices. The portfolio also includes mobile service solutions (aqua mobil and aqua ronda trailers), and accessories such as connectors, wall brackets, trolleys, and wireless remote control plugs. The products serve residential, commercial, and industrial applications including heat pumps, boiler systems, solar installations, district heating networks, and marine engine circuits.

Differentiator

Problem solved

Functional benefit

Brands

• H2O DESAL: Product line for water desalination and conditioning solutions including axiom, d-toc, filt, harion, master products, and related cartridges.
• H2O GUARD
• PUROTAP
• Sanol
• SorBOs

Products and services

• ELYSATOR trio .1 Corrosion protection device combining four functions in one unit: degassing via micro gas bubble separator, sacrificial anode protection, magnetic flux filter, and replaceable dirt filter. Designed for residential and small commercial heating systems with water content up to 5,000 L.
• ELYSATOR industrial Corrosion protection device for larger heating systems with water content exceeding 5,000 L, available in types 260c–800c. Removes oxygen and acid from heating water while filtering residues, protecting metal components from rust and sludge in industrial applications including power plants, ships and engine circuits.
• ELYSATOR air-vent INOX High-quality automatic stainless-steel float vent for use under challenging conditions such as high temperature and pressure or aggressive media. Mechanical-free float design increases operational reliability.
• H2O GUARD 60v Latest-generation corrosion protection device for heating and cooling systems, offering 4-fold protection: automatic pH regulation, permanent degassing, magnetic flux filter, and 300 µm suspended matter filter. Can operate in full-flow or bypass mode with modular Tichelmann parallel configuration.
• H2O GUARD lift '6-in-1' corrosion protection unit providing rapid pH increase of circulating water, dissolved oxygen reduction, micro gas bubble separation, suspended matter filtration, and two integrated ball valves. Suitable for single-family homes, cooling circuits, and heat pump heating systems.
• SorbOx Combined water filter for modern energy-efficient heating systems, integrating four functions: demineralization of heating water, micro gas bubble separation, sacrificial anode protection, and magnetic flux filter. Suitable for systems up to 800 L volume.
• H2O DESAL axiom Top-up device for maintaining static fluid pressure in closed heating and cooling circuits. Available in 16 L (4.5 kg) and 64 L (8.16 kg) reservoir variants. Eliminates the need for backflow preventers or network separators when using treated water as top-up fluid.
• PUROTAP d-toc TOC (Total Organic Carbon) reduction product for heating and cooling water with excessive TOC content. Uses cartridge-based system (d-toc 33 for small systems, d-toc 55 for larger systems) installed in bypass with pump. Reduces TOC from antifreeze or chemical contamination.
• PUROTAP filt Four-stage filtration cartridge system for circulating water in heating and cooling circuits. Removes contaminants through multiple filtration steps, includes magnetic band for magnetite retention, and filters particles down to approximately 5 µm.
• PUROTAP harion 55 Water-softening cartridge set for circulating water that descales the system and prevents scale formation, improving heat transfer and extending equipment life. Complies with VDI 2035 guidelines. Includes a depth filter for solid particle removal.
• H2O DESAL master Mobile ecological full desalination device using reverse osmosis (RO). Provides power-independent filling of small and medium plants with deionized water. Suitable for heating, cooling, and ice water storage systems. H2O DESAL master membrane reaches approximately 50,000 L of VE-water at medium water hardness.
• PUROTAP micro Wall-mounted unit with single-use cartridge featuring certified 2-component mixed-bed resin for full desalination. Color change indicates end of cartridge life. Designed for heating system fill water and distilled-quality water for household use. Complies with SWKI BT 102-01, VDI 2035, and Ö-NORM H 5195-1.
• PUROTAP mini+ Wall station for demineralizing make-up water in larger heating and cooling systems. Features practical hose saddle and built-in measuring instrument. No power connection required. Uses replaceable PUROTAP 750 nexxion single-use cartridge.
• PUROTAP leader Demineralization device featuring a patented replaceable cartridge system for initial filling and circulating desalination. Includes built-in measuring instrument. The wireless plug enables automatic control of external pumps and solenoid valves. Compatible with L60 highpower, L50 nexxion, harion 55, filt 55, and d-toc 55 cartridges.
• PUROTAP compenso Stationary refill station for make-up water, permanently connected to the water supply network. Available in models for single-family homes up to large industrial plants. All necessary measuring and control instruments are integrated. For systems with automatic top-up.
• PUROTAP expert Mobile ecological full desalination device using hyperfiltration membrane technology. Removes minerals and molecules in the nanometer range. Measuring, control, and safety devices integrated. Operates with or without power connection. For filling large heating/cooling systems per VDI 2035 and SWKI BT 102-01.
• PUROTAP easy II Simple filling device for smaller heating systems that filters lime and aggressive water components from filling water. Includes measuring instrument showing filling water quality and when resin is exhausted. Used resin is disposed with household waste.
• PUROTAP profi .1 Mobile filling station for demineralizing fill water in larger heating and cooling systems. Features integrated magnetic flux and dirt filter for improved circulating demineralization results. No power connection needed. Resin can be refilled on-site.
• PUROTAP level 290 Open tank with automatic level control for pumping deionized water into pressure systems or to higher levels. Regulates water level, stops on impending overfill (dry-run protection), provides pump pressure up to 4.5 bar at 100 L/min flow rate.
• aqua mobil Mobile water treatment unit on a trailer for large-scale filling with deionized water of all types of systems. Treatment via reverse osmosis (RO) with optional ion exchange polishing up to 5 µS/cm / 0.2 °fH. Capacity up to 120 m³/day. Includes protocol and cloud-based remote diagnostics.
• aqua ronda Mobile trailer for circulating water treatment via circulation process. Treats 'problem water' starting from 15 m³ volume. Addresses dirt, sludge, magnetite filtration (1 µm), excessive conductivity, hardness, TOC reduction, and pH increase without chemicals.
• Sanol express Portable cartridge pre-filled with Sanol H-15 green dispersant for straightforward heating system flushing. Features integrated valves for uncomplicated cleaning. Available in two sizes: express 400 (system volume 50–400 L) and express 700 (system volume 300–700 L).
• Sanol H-15 green Dispersant for heating and cooling system cleaning, proven over decades. Removes iron oxide sludge, light iron oxide deposits, and associated residues of chemical additives. Not caustic or toxic; forms a stable, soluble complex with metal oxides that is then flushed out.
• Sanomat Berger S-20 Pulsating compressed air-water mixture flushing device for cleaning sludge-filled heating and cooling systems. Unique in the market offering alternating flushing that can even reopen clogged underfloor heating circuits. For professional heating installers.
• H2O DESAL report Smart measuring device that captures all important water quality parameters including conductivity, flow rate, volume of water passed, and temperature. Logs filling or circulating flush sessions for proof and service interval tracking. Communicates via Bluetooth.
• PUROTAP i-control-21s

Quantifiable outcome

• Energy efficiency losses of 10-20% are common within one year of operation without proper water treatment
• +4 more outcomes

Named customers5 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

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• ETASUISSE AGcoreChannel Partner/ Reseller/ DistributorETASUISSE AG is a service partner offering mobile water treatment services using the aqua mobil unit for large-scale projects. They serve customers in Switzerland with ELYSATOR mobile water treatment technology for district heating, large storage systems, and energy networks.
• Berger Boiler-Service AGcoreChannel Partner/ Reseller/ DistributorExclusive service partner for ELYSATOR technical customer service, maintenance, and repairs. Located at Räschstrasse 31, 8912 Obfelden, Switzerland. With over 30 years of experience, they inspect heating systems and advise on energy cost savings and warranty protection. The partnership is presented as an exclusive arrangement.
• Aquiquest AGminorStrategic or Co-development PartnerSpin-off company established in 2010 from the largest water laboratory for the heating industry. May have collaborative relationship in water analytics and testing services for heating systems.

Scale indicators7 records

Recent moves11 records

Expansion highlights5 records

Broad incumbents

• Pentair: Global water treatment and flow control company serving residential, commercial, and industrial markets with filtration, softening, and specialty systems. Comparable to ELYSATOR on residential and light-commercial water treatment while operating at significantly larger scale and broader product scope.
• Watts Water Technologies: US-headquartered manufacturer of water treatment, plumbing, and heating products for residential and commercial markets. Overlaps with ELYSATOR on water quality and heating-system components, serving similar installer and OEM channels across multiple geographies.
• Caleffi: Italian manufacturer of components for hydronic heating, cooling, and renewable-energy systems, including water treatment accessories. Overlaps with ELYSATOR on water quality management for heating circuits while operating as a broader hydronic components incumbent.
• Veolia Water Technologies: Global water-treatment solutions provider serving industrial, municipal, and commercial customers with desalination, filtration, and chemical-treatment systems. Overlaps with ELYSATOR on industrial water treatment and RO-based demineralization but at a much larger scale and broader scope.
• Honeywell Water Solutions: Division of Honeywell offering residential and light-commercial water filtration, softening, and treatment products. Comparable to ELYSATOR on consumer-facing water quality management, though serving a much wider portfolio of treatment applications.

Direct peers

• Grünbeck Wasseraufbereitung: German family-owned water treatment specialist serving residential, commercial, and industrial markets with softening, filtration, and corrosion-protection systems. Closely mirrors ELYSATOR's niche focus on water treatment for closed-loop heating and cooling circuits in the DACH region.
• BWT (Best Water Technology): Austrian-headquartered global leader in water treatment with broad product portfolio across residential, commercial, and industrial segments, including the Cillit brand for building water hygiene. Directly comparable to ELYSATOR as both target heating-system water treatment and building-services customers across Europe.
• Cillit: Building water hygiene and treatment brand (now part of BWT) specializing in scale, corrosion, and Legionella protection. Targets the same heating installer and building services channel as ELYSATOR, with strong presence in DACH and southern Europe.
• Spirotherm: Manufacturer of hydronic air and dirt separators for HVAC and heating systems, addressing similar water-quality and corrosion problems in closed loops. Compares to ELYSATOR's magnetic flux filtration and degassing functions within the same installer-driven channel.

Emerging players

• Hydropath Technology: UK-based water-treatment technology company offering electronic/induction-based scale prevention and water conditioning for residential, commercial, and industrial systems. Comparable to ELYSATOR's chemical-free approach targeting heating and cooling circuits, but using electronic rather than electrochemical treatment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCE_jd-AaPz761L6c9x1x8PA
• Facebookfacebook.com/elysator
• LinkedInlinkedin.com/company/elysator-engineering-ag
• Instagraminstagram.com/elysator.engineering

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Subsidiaries1 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 ELYSATOR Engineering