Eau Air Système

What Eau Air Système does

Eau Air Système, founded in August 2007, is a French B2B contractor that designs, implements, and maintains water treatment, air treatment, and energy management systems for public aquatic centers, swimming pools, and related facilities. The company is a wholly-owned subsidiary of Groupe Baudin Chateauneuf, a family-owned French construction conglomerate (founded 1919, 512M€ group revenue, 1,850 employees, 31 subsidiaries), and operates from two office locations: Fretin in Hauts-de-France (northern France) and Saint-Aunès near Montpellier (southern France). Eau Air Système serves municipalities, public aquatic centers, tourism and leisure operators (including Parc Astérix, Center Parcs, and Villages Nature Paris), thermal establishments, and healthcare facilities, with operations spanning France and Belgium.

The company's core offerings are organized around four domains: Maîtrise de l'eau (water treatment including pre-filtration, multi-media filtration, chlorine/ozone/reverse osmosis disinfection, ultrafiltration for filter backwash recovery, and pool heating via heat pumps, solar, and boilers); Maîtrise de l'énergie (heating solutions including wood, gas, geothermal, and cogeneration); Maîtrise de l'air (humidity, temperature, and heat-recovery systems for pool halls); and Maîtrise des données (a web-based telemetry and monitoring platform for facility optimization). An integrated engineering bureau (Bureau d'études intégré) allows Eau Air Système to manage complex macro-technical lots combining water treatment, HVAC, plumbing, and sanitary systems in single project deliveries.

Eau Air Système operates a project-based B2B business model, generating revenue through installation contracts, commissioning, ongoing maintenance, and technical assistance to municipal and private operators. Most recent disclosures place revenue at approximately 18M€ EUR with ~80 collaborators. The model combines one-time project revenue with recurring maintenance streams, supported by QUALIBAT certifications (5112 Plomberie-Sanitaire, 5313 Installations thermiques) and a technical partnership with the Fédération Française de Natation that provide regulatory credibility and procurement eligibility in French public tenders.

Name

Eau Air Système

Legal name

EAU AIR SYSTÈME

Website

https://eauairsysteme.com

Company type

Private

Founded year

2007

Operating status

Operating

Headcount range

11–50 employees

Short description

Eau Air Système is a French B2B contractor specializing in water, air, and energy treatment systems for public aquatic centers and pools. A subsidiary of Groupe Baudin Chateauneuf, it serves municipalities, tourism operators, and thermal establishments across France and Belgium.

Ownership category

akta.pro rank

Product category

Aquatic Facility Engineering & Water Treatment Services

NAICS

Plumbing, Heating, and Air-Conditioning Contractors (238220)

SIC

Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures (3430), Auto Controls For Regulating Residential & Comml Environments (3822), Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564)

akta.pro primary industry

Water Testing & Chemical Balancing (HSAIALAB)

akta.pro secondary industries

Filter, Pump & Heater Maintenance/Repair (HSAIALAC), Equipment Installation & Upgrades (Automation, Covers, Sanitizers) (HSAIALAJ), Water, Air Quality & Environmental Hygiene (Legionella/IAQ) (BPABAAAO), Disinfection & Remedial Works (Chlorination, Thermal, Shock Treatments) (BPABAJAF)

Keywords

• Water treatment systems
• Air treatment solutions
• Pool filtration installations
• HVAC pool halls
• Aquatic facility engineering

Headquarters

HQ city

Fretin

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Project-based installation services: Design, implementation, verification, commissioning, and improvement of water, air, and heating installations for aquatic centers. Revenue generated through construction and installation contracts with public and private sector clients.
2. Maintenance and repair services: Ongoing maintenance, troubleshooting, and repair services for installed equipment. Includes preventive maintenance, emergency repairs, and Legionella disinfection services.
3. Technical assistance and consulting: Advisory services for clients, including technical expertise, AMOA (assistance to project management), and operational support during facility exploitation.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Eau Air Système designs, installs, and maintains water, air, and energy treatment installations for aquatic centers (public pools, water parks, thalassotherapy, balneotherapy, spa, hotel/camping aquatic facilities). Offerings span prefiltration, multi-media filtration, disinfection (chlorine, ozone, reverse osmosis), filter backwash recycling via ultrafiltration, pool heating (heat pumps, solar, boilers), pool hall air handling with humidity/temperature control, smoke extraction, and a web-based centralized monitoring platform. The company also delivers commissioning, preventive/corrective maintenance, and an in-house engineering bureau capable of managing combined water/HVAC/plumbing macro-technical lots.

Product overview

Eau Air Système offers an integrated suite of water, air, and energy treatment solutions for aquatic centers, pools, and related facilities. The core offerings comprise Maîtrise de l'eau (water treatment including filtration, disinfection, purification, and recycling), Maîtrise de l'énergie (energy management including heating solutions), Maîtrise de l'air (air treatment for humidity and temperature control), and Maîtrise des données (web-based monitoring and data analysis). These are complemented by commissioning, maintenance, and improvement work services, assistance services, and an integrated design office. The company serves public pools, water parks, thalassotherapy centers, hotels, campsites, aquariums, and closed water circuits, providing end-to-end support from design through commissioning and operational assistance.

Differentiator

Problem solved

Functional benefit

Products and services

• Maîtrise de l'eau (Water Treatment Solutions) Comprehensive water treatment for aquatic facilities: prefiltration (pumps, prefilters, buffer tanks), multi-media filtration (sand, diatomaceous earth, anthracite, glass beads), disinfection and purification (chlorine, pH regulation, ozone, reverse osmosis), filter backwash water recovery and recycling (ultrafiltration), pool heating (heat pumps, solar, boilers), aquatic animations (counter-current rivers, wild rivers, aqua-coaster, jet rivers, whirlpools, cascades), and comfort features (jacuzzi, spa, sauna, hammam, massage jets, bubble benches).
• Maîtrise de l'énergie (Energy Management Solutions) Energy management solutions delivering the 27°C climate comfort target around aquatic facilities, including wood-fired boiler plants (chaufferie bois), gas boiler plants with flue gas heat recovery, geothermal systems, and cogeneration (co-génération).
• Maîtrise de l'air (Air Treatment Solutions) Air handling for pool halls delivering humidity control, filtered fresh-air introduction, and smoke extraction: thermodynamic air handling units and central units with static heat recovery (rotary wheels, plate exchangers, caloducs/heat pipes), plus dedicated smoke extraction (désenfumage).
• Maîtrise des données (Data Management & Monitoring) Web-based data recovery system collecting water, air, and energy measurements from installed equipment, enabling centralized monitoring, data analysis, and optimized operational management of aquatic centers with continuous tracking to extend equipment service life.
• Mise en service et Travaux d'amélioration (Commissioning, Maintenance, Repair & Improvement) Commissioning, maintenance, repair and improvement works for water treatment, air treatment, HVAC and plumbing, automation and safety equipment, and hydraulic networks (steel, stainless steel, copper, PVC, multilayer, PE) for public institutions, tertiary buildings, housing, sports facilities, physiotherapists, and aquariums. Typical interventions include central unit replacement, curative and preventive Legionella disinfection, alternative and ecological treatment of sanitary hot/cold water, ecological treatment of closed circuits against biofouling, and automation and regulation management for aquatic basins.
• Assistance (Preventive & Corrective Assistance Services) Tailored preventive and corrective assistance services covering all parameters of public-pool and closed-circuit management, with preventive actions to avoid major malfunctions that could lead to temporary closure, plus scheduled and emergency repair and troubleshooting interventions across all of France (urgent response in regions neighboring the Fretin and Saint-Aunès offices).
• Bureau d'études intégré (Integrated Design Office) Internal engineering office (Bureau d'études intégré) able to manage macro-technical lots combining water treatment, heating, ventilation, and sanitary plumbing, delivering complete technical and environmental response from design through commissioning for aquatic and related facilities.

Quantifiable outcome

• Revenue doubled over 5 years
• +1 more outcomes

Named customers12 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered core.

• Groupe Baudin ChateauneufcoreOthersParent company of Eau Air Système. Groupe Baudin Chateauneuf is a family-owned construction group founded in 1919, with 31 subsidiaries, 1850 employees, and 512M€ group revenue. Eau Air Système operates as a subsidiary (filiale) benefiting from group resources, financial backing, and cross-selling opportunities across the group's diverse construction and engineering activities.
• Fédération Française de NatationcoreStrategic or Co-development PartnerEau Air Système is a technical partner of the French Swimming Federation (FFN), providing expertise in aquatic facility standards and contributing to the federation's technical knowledge in swimming pool systems. This partnership provides credibility and market access within the French swimming and aquatic sports community.
• QUALIBATcoreOthersEau Air Système holds QUALIBAT certifications (5112 Plomberie-Sanitaire, 5313 Installations thermiques), which are official French professional certifications for construction and installation companies, providing regulatory credibility and eligibility for public procurement contracts.

Scale indicators6 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Desjoyaux: French manufacturer and installer of residential and commercial pools with integrated water treatment. Comparable as a French-headquartered pool/aquatic facility specialist with a similar B2B/B2C profile and direct overlap on aquatic facility water treatment scope.
• Procopi: French pool equipment supplier and pool construction specialist serving public and private aquatic facilities. Direct competitor in the French aquatic center water treatment, filtration, and HVAC-equipment market.

Broad incumbents

• Fluidra: Global pool and wellness equipment manufacturer and distributor. Comparable as a supplier of pool water treatment, filtration, and heating equipment competing for the same specification slots in aquatic facility projects.
• BWT (Best Water Technology): European water treatment specialist with strong presence in pool/spa water. Provides filtration, disinfection, and water chemistry solutions to public pools and competes in the same French/European pool water treatment sales motion.
• ENGIE Solutions: Large multi-technical facilities management and HVAC services provider. Overlaps with Eau Air Système on aquatic facility HVAC, energy, and water/air treatment scopes as part of a broader facilities management portfolio.
• Veolia Water Technologies: Global water treatment provider serving municipal and industrial clients. Comparable on water treatment technology and disinfection chemistry for aquatic facilities, although operates at much larger scale and broader scope.
• Culligan International: Global water treatment company with strong presence in commercial and industrial water treatment. Overlaps on commercial water chemistry, filtration, and disinfection contracts for public aquatic facilities.
• Spie France: Major French multi-technical services contractor offering HVAC, electrical, and facility services. Competes for technical installation lots at municipal and private aquatic facilities, often as part of broader multi-site framework contracts.
• Hayward Pool Europe: European pool equipment manufacturer of pumps, filters, heaters, and control systems for public and private pools. Competes at the equipment level for the components Eau Air Système specifies in its installations.
• Pentair Pool: Global pool equipment manufacturer offering filtration, pumps, heaters, and automation. Often competes with or supplies Eau Air Système for the equipment embedded in their pool installations.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/eau.air.systeme
• LinkedInlinkedin.com/company/eau-air-systeme

Compliance3 records

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 Eau Air Système