ROMAG

What ROMAG does

ROMAG Aquacare AG is a Swiss manufacturer and engineering services provider specializing in stainless-steel equipment for municipal water and wastewater infrastructure. Founded in 1949 and headquartered in Düdingen, Switzerland (current legal entity ROMAG aquacare AG registered in 2001), the company designs, engineers, manufactures, and installs modular equipment used across the drinking water and wastewater value chain. Its customer base is predominantly municipal water utilities, cantonal environmental authorities, and selected industrial water-intensive facilities, served through direct sales in Switzerland and a network of exclusive distribution partners across Europe, North America, Asia-Pacific, and Oceania. The company employs approximately 50 staff plus 10 apprentices and operates a 6,950 m² workshop.

The company's product portfolio centers on five high-performance Combined Sewage Overflow (CSO) screen models (RSW, RSW-K, RSU, RSS, RSL) that mechanically retain solids during stormwater overflow events, the European-patented WABE® well chamber system for drinking-water intake, and a supporting range of pressure doors, well covers with AQUASAFE locking, manhole covers, floor gates, hydraulic valves and gates, pressure vessels, and stainless-steel piping. All equipment is built from 316L or 304L stainless steel under ISO 3834-2 certified welding processes with re-stamping authorization. The technology is differentiated by self-cleaning asymmetric-comb cleaning systems with hydraulic actuators, modular adaptability to existing infrastructure, and 30+ years of accumulated engineering refinement. Approximately 1,200 ROMAG CSO screens and 300+ WABE® systems are installed globally. Independent testing by a UK water authority confirmed 95% solids retention on the RSS variant.

ROMAG operates a project-based enterprise sales model in which every product is custom-engineered and quoted to specification, with hydraulic calculation and engineering services bundled into hardware delivery. The company sells directly in Switzerland via regional sales managers covering Romandie, Ticino, and Eastern Switzerland, and through exclusive distribution partners in 20+ countries including SAVECO North America, UFT in Germany, ROMAG France, and Quilton in Iberia. Revenue is split across four divisions: Pipe Systems/Drinking Water (44%), Environmental Technology (37%), Mechanical Engineering (14%), and Plant Construction (5%), with 40% of revenue generated from exports. Certifications include ISO 9001 (held continuously since 1993, valid through July 2026), ISO 3834-2 for welding, SVGW for drinking-water products, ATEX for explosion-protected equipment, and VKF fire-safety certification.

Name

ROMAG

Legal name

ROMAG aquacare AG

Website

https://romag.ch

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

1–10 employees

Short description

ROMAG Aquacare AG is a Swiss manufacturer of stainless-steel water and wastewater infrastructure equipment, serving municipal utilities and industrial facilities worldwide with engineered CSO screens, well chambers, pressure doors, and hydraulic systems.

Ownership category

akta.pro rank

Product category

Water Treatment Equipment

NAICS

Water, Sewage and Other Systems (2213), Measuring, Dispensing, and Other Pumping Equipment Manufacturing (333914)

SIC

Special Industry Machinery (No Metalworking Machinery) (3550), Water Supply (4941)

akta.pro primary industry

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

akta.pro secondary industries

Combined Sewer Overflow (CSO) Control & Compliance (Storage, Separation, Treatment) (EUANAEAG), Combined Sewer Overflow (CSO) Treatment & Wet-Weather Capacity (EUANADAF), Plumbing & Utility Systems (Potable/Non-Potable Water, Sanitary, Storm, Sewage Lift) (EUAEAFAF)

Keywords

• Combined sewage overflow screens
• Stainless steel water infrastructure
• Drinking water treatment equipment
• Wastewater screening systems
• Municipal water engineering

Headquarters

HQ city

Dudingen

HQ country

Switzerland

HQ region

Europe

Offices1 record

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. Water Treatment Equipment & Systems: ROMAG designs, engineers, manufactures, and installs stainless steel water treatment equipment. Revenue is generated through project-based sales of CSO screens (RSW, RSW-K, RSU, RSS, RSL), pressure doors, well chamber systems (WABE®), shaft covers, hydraulic valves/gates, and pressure vessels. Engineering and consultation services are bundled with product delivery. Revenue breakdown by division: Pipe Systems/Drinking Water 44%, Environmental Technology 37%, Mechanical Engineering 14%, Plant Construction 5%.
2. Engineering & Consulting Services: ROMAG provides hydraulic calculations, system planning, engineering, and acts as general contractor for wastewater infrastructure projects. Services include site assessment, hydraulic boundary condition analysis, and full project execution.
3. Distribution of Biogest Rainwater Products: As the Swiss representative for Biogest (Alpheus® flow limiters, vortex flow limiters, flow regulators, vacuum flushes, flush caps, canal flush protection), ROMAG distributes third-party rainwater management products, expanding its portfolio beyond own-manufactured equipment.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

ROMAG designs, engineers, manufactures, and installs stainless steel water treatment equipment for municipal and industrial customers. Its core offering is a modular portfolio of high-performance combined sewage overflow (CSO) screens — RSW, RSW-K, RSU, RSS, and RSL — that mechanically retain pollutants from stormwater discharges, together with the patented WABE® well chamber system for drinking water intake. Supporting products include SVGW-certified pressure doors, well covers, manhole/floor gates, hydraulic valves, pressure vessels, and piping systems. Each sale is bundled with hydraulic calculations, system planning, and on-site assembly as a custom-quoted engineering project.

Product overview

ROMAG Aquacare AG is an international water treatment technology company offering a comprehensive portfolio of modular stainless steel products spanning from spring collection to wastewater treatment plant outlet. The core product line consists of five high-performance Combined Sewage Overflow (CSO) screen models (RSW, RSW-K, RSU, RSS, RSL) designed for mechanical cleaning of stormwater, plus the patented WABE well chamber system for drinking water supply. Supporting product lines include pressure doors, manhole covers, floor gates, valves/gates/shutters, pressure vessels, and piping systems. The company also distributes BIOGEST rainwater management products. With approximately 1,200 high-performance screens operating worldwide, ROMAG operates as a single-product-platform architecture with modular components that can be integrated into existing infrastructure.

Differentiator

Problem solved

Functional benefit

Products and services

• RSW High-Performance CSO Screen Horizontal-flow high-performance combined sewage overflow (CSO) screen installed vertically between the discharge culvert and relief sewer; retains all visible solids greater than 4 mm via a hydraulic cylinder-driven cleaning carriage with asymmetric triangular combs in self-cleaning configuration. Built in 316L or 304L stainless steel for municipal wastewater treatment plants.
• RSW-K CSO Screen with Controlled Weir Wicket RSW screen combined with a controlled weir wicket driven by two hydraulic cylinders with displacement measuring systems; the wicket regulates relief height to minimize discharge of contaminated rainwater into the relief sewer and enables reliable flow measurement via second level measurement at the relief end. Bar spacing 4 mm. Installed at Swiss references including WWTP Telli Aarau and WWTP Kolben.
• RSU High-Performance CSO Screen (Bottom-to-Top Flow) High-performance CSO screen with vertical flow from bottom to top; horizontally oriented screen mounted between discharge culvert and relief sewer. Features 4 mm bar spacing and the asymmetric triangular comb cleaning system in 316L stainless steel. Reference installation: Zürich-Wollishofen Sewage Treatment Plant.
• RSS Compact Vertical CSO Screen Compact vertical CSO screen designed for narrow spillway openings of 40-120 cm width and cramped site conditions; operates vertically with flow rates of 80-300 l/s. Independently tested by a UK water/sewage authority in north-east England where it retained 95% of solids and suspended matter greater than 6 mm in relief water.
• RSL Perforated Plate CSO Screen Perforated plate screen with 6 mm hole diameter, vertically mounted between discharge culvert and relief sewer. Self-cleaning mechanism uses a water-jet spray to rake retained material off the perforated plate surface. Built in stainless steel for municipal CSO applications.
• WABE® Well Chamber System Patented (Europe) compact cylindrical collection container for spring water intake with calming zone and separation zone. Separates sediments, measures flow rates, and prevents external contamination. SVGW certified. Available in polymer concrete or PE shafts in Types 1-4 handling flows from 360 to 3,500 l/min. Over 300 units delivered across Switzerland, Italy, Germany, and Austria. Reference: water supply Saanen (Gstaad region).
• Pressure Doors for Reservoirs and Water Treatment Plants (Drucktüren B1-95M, B1-92M, B1-17, B1-21, B2) Watertight pressure doors for reservoirs and drinking water treatment plants, available in models B1-95M, B1-92M, B1-17, B1-21, and B2 (round). Feature interior hinges, central locking mechanism, and food-safe chlor/ozone-resistant gaskets. SVGW certified with pressure resistance up to 10 mWs. Options include inspection glass, wiper, and spotlight.
• Brunnendeckel E6 Well Cover with AQUASAFE Security System SVGW-certified stainless steel well cover (certificate no. 8510-1703) for spring chambers with burglar-resistant design featuring labyrinth air intake and special drilling protection. Available with optional AQUASAFE mechanical/electronic locking system: lever lock with key cylinder or high-security code-operated lock, plus remote alarm monitoring via mobile phone, SMS, landline, or email.
• Manhole Covers (Schachtabdeckungen) Stainless steel manhole covers for access, maintenance, or installation shafts in various load ratings up to 40 tonnes. Includes fire-resistant S14 and S21 models with VKF certification REI60-RF1 (60-minute fire resistance) for building fire compartmentation. EN 124 compliant.
• Floor Gates (Bodentore) Custom-made stainless steel floor gates for driveable, watertight, or gas-tight shaft coverage with load capacities from 5 to 40 tonnes per DIN 1072. Available features include hinged railings, retractable ladders, and hydraulic opening assistance.
• Valves, Gates and Shutters (Schieber, Klappen, Schützen) Hydraulic actuators for wastewater regulation including throttle valves, insertion slides, dam boards, and check valves. Made from stainless steel with biodegradable hydraulic oil and precision displacement measuring systems. Reference installation: Municipality of Lyss/BE flood relief tunnel (4m wide × 3m high pressure gate, 2.2t weight).
• Pressure Vessels (Druckbehälter) Pressure vessels for water treatment and supply including filter and sedimentation containers, storage vessels, and pressure wind tanks. Manufactured per PED (Pressure Equipment Directive) requirements with EN 3834-2 certification and re-stamping authorization. Available in cubic or round configurations.
• Piping, Spring Collectors and Accessories Stainless steel piping systems for reservoirs, pump stations, spring collectors, and sprinkler systems. Includes spring collector pipes with calibrated water entry areas, form pieces, flanges, pipe clamps, and wall passages. Reference installation: Swiss National Supercomputing Centre (CSCS), Lugano (800mm diameter pipes handling 760 l/s of Lake Lugano water for supercomputer cooling).
• BIOGEST Rainwater Management Products Distributed (third-party) rainwater management products including Alpheus® flow limiters, vortex flow limiters, flow regulators, vacuum flush systems, flush caps, and canal flush protection from manufacturer Biogest. Distributed by ROMAG as its Swiss representative to complement in-house stormwater treatment equipment.

Quantifiable outcome

• Independent testing in England's north-east confirmed 95% retention of solids and suspended matter >6 mm using the RSS screen
• +3 more outcomes

Named customers8 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Eight partnerships are on record, tiered minor and core.

• Haute école d'ingénierie et d'architecture de Fribourg (HEIA-FR)minorStrategic or Co-development Partner · 2 December 2022Academic partner in the BlueArk Challenge 2022 project to develop a connected stainless steel container for monitoring water quality at source (turbidity, pH, temperature, conductivity). ROMAG contributed product expertise for the physical receptacle while the university provided research and development capabilities.
• EarlybyteminorStrategic or Co-development Partner · 2 December 2022Swiss SME partner in the BlueArk Challenge 2022 project, contributing digital/IoT expertise for the connected water quality monitoring container project with ROMAG and HEIA-FR.
• BiogestminorChannel Partner/ Reseller/ DistributorROMAG is the Swiss representative and distributor for Biogest rainwater management products including Alpheus® flow limiters, vortex flow limiters, flow regulators, vacuum flushes, flush caps, and canal flush protection. These complement ROMAG's own product range in stormwater management.
• SAVECO North America Inc. (formerly Enviro-Care Company)coreChannel Partner/ Reseller/ DistributorExclusive/named distributor for ROMAG products in the USA and Canada. Located in Gurnee, Illinois. Handles wastewater treatment division sales for North American markets, including the National Sales Manager contact.
• UFT Umwelt- und Fluid-Technik Dr. H. Brombach GmbHcoreChannel Partner/ Reseller/ DistributorExclusive ROMAG representation in Germany. UFT specializes in environmental and fluid technology and serves as the primary channel partner for ROMAG products in the German market.
• ROMAG FrancecoreChannel Partner/ Reseller/ DistributorROMAG subsidiary/representation in France, based in Villeurbanne (near Lyon). Handles direct sales and support for French-speaking markets.
• Quilton Sociedad AnónimacoreChannel Partner/ Reseller/ DistributorROMAG representation for Spain and Portugal, based in Getxo (Vizcaya), Spain. Handles sales and support for the Iberian market.
• DV Bern AGminorOthersWebsite hosting provider for romag.ch domain and subdomains. Servers are located in Switzerland. All personal data collected during website activities is hosted on DV Bern AG servers.

Scale indicators7 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• WILO SE: Global German pump and water management systems manufacturer serving municipal, industrial and building services water markets. Overlaps with ROMAG in stainless steel pumping, valve and water infrastructure equipment but at far broader and larger scale.
• Evoqua Water Technologies (Veolia): Major North American/European water treatment systems provider offering screens, filtration, biological treatment and full wastewater plant solutions. Competes with ROMAG for large integrated municipal CSO and wastewater projects with comprehensive end-to-end offerings.
• Xylem Inc. Global water technology major offering pumps, treatment systems, smart metering and CSO-related equipment. Competes with ROMAG at the high end of municipal wastewater tenders as a broad incumbent with multi-product offerings and larger engineering/sales scale.
• Andritz AG: Austrian industrial group with significant water and wastewater treatment equipment businesses (pumps, screens, separation equipment). Competes with ROMAG in municipal and industrial water infrastructure projects, particularly across DACH and broader European markets.

Direct peers

• SAVECO North America (Enviro-Care): North American manufacturer's representative and supplier of CSO screens, screening equipment, and headworks systems. Functions as ROMAG's exclusive USA/Canada channel partner and competes against ROMAG with its own equipment portfolio for municipal wastewater tender bids.
• Huber SE: German manufacturer of water and wastewater treatment equipment including screening systems (ROKO/ROKON), CSO technology, and stainless steel components for municipal and industrial customers. Closest direct competitor to ROMAG in mechanical CSO screening and wastewater treatment equipment, with comparable engineering/spec-driven selling model.
• Biogest Energie- und Wassertechnik GmbH: German manufacturer of stormwater and CSO equipment including Alpheus® flow limiters, vortex valves and flush systems. Existing distribution partnership with ROMAG for the Swiss market, and a direct competitor in the same CSO/flow-control category across European markets.
• UFT Umwelt- und Fluid-Technik: German environmental and fluid technology firm specializing in CSO equipment, vortex valves, and stormwater management technology. Functions both as ROMAG's exclusive German channel partner and a competing supplier of CSO control equipment to municipal clients.

Regional players

• GF Piping Systems (Georg Fischer): Swiss-based global manufacturer of piping systems (PE, metal, plastic) for water and industrial applications. Direct competitor/alternative supplier for stainless steel piping, pressure vessels and water infrastructure components to ROMAG's mechanical engineering division.
• Facet Industrial: Dutch manufacturer of stainless steel separation and filtration equipment for industrial and municipal water/wastewater markets. Regional European peer also serving as ROMAG's Netherlands channel partner and competing with proprietary screening technology.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/romag
• LinkedInlinkedin.com/company/romag-aquacare-sa

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 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 ROMAG