Hydrostadium

What Hydrostadium does

Hydrostadium is a specialized hydraulic engineering company headquartered in Annecy, France, operating as a wholly-owned subsidiary of EDF Group since its formal incorporation in 2001 (with roots in EDF's Hydraulic Division dating to 1990). The firm operates in two principal domains that share a common competence in water management: whitewater sports facility engineering (whitewater stadiums, course components such as mobile obstacles, pumps and conveyors, plus surfing wave technology) and small-scale hydroelectric power plant engineering (water intakes, penstocks, hydraulic tunnels, turbines, fish-pass and ecological-continuity solutions). Its technological foundation is the HYDROMAQ modular hydraulic physical-modeling platform, used as a complement to digital simulation, alongside six international patents (covering three generations of Omniflots® mobile obstacles and FlowSurf™ surfing waves) and an ICF homologation for Omniflots® III. The company has built whitewater stadiums for three consecutive Olympic Games (Sydney 2000, Athens 2004, Beijing 2008) plus the Paris 2024 venue at Vaires-sur-Marne.

Hydrostadium generates revenue through two main streams: professional engineering services (maîtrise d'œuvre) covering the full project lifecycle from preliminary studies through commissioning, and hardware sales of proprietary products such as Omniflots® mobile obstacles, RiverBox® demountable artificial rivers and FlowSurf™/Wavedock® surfing waves. Projects are typically custom engineering contracts ranging from approximately €5M to €10M at the project level (e.g., Chavaroche €10M, Notre-Dame de Briançon €7M, Saint-Pierre-en-Faucigny €5.6M, Hautefage €5M). Go-to-market is enterprise field sales via direct engagement and public tenders, targeting EDF Group as the anchor client, French local authorities and public institutions as a primary segment, and an expanding set of international sports federations, ski-resort operators and surfing facility operators.

The company employs 101–250 staff (107 disclosed at end-2017) and operates four regional offices in Annecy (HQ with 43 employees across Annecy Sud and Nord), Toulouse (opened September 2009, 17 employees), Clermont-Ferrand (opened February 2016, 11 employees) and Nice (opening January 2025). Hydrostadium's headcount grew from 7 in 2007 to 107 by end of 2017. International reach spans France, Australia (Penrith project), Germany and Canada, with projects cited on every continent.

Name

Hydrostadium

Legal name

Hydrostadium

Website

https://hydrostadium.com

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

101–250 employees

Short description

Hydrostadium is a French hydraulic-engineering firm, wholly owned by EDF Group, specializing in whitewater sports facility design (including Olympic venues) and small-scale hydroelectric power plant engineering, serving EDF, local authorities, and international sports and ski-resort operators.

Ownership category

akta.pro rank

Product category

Hydraulic Engineering Services

NAICS

Hydroelectric Power Generation (221111), Water, Sewage and Other Systems (2213)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Engines & Turbines (3510), Pumps & Pumping Equipment (3561)

akta.pro primary industry

Hydropower EPC & Construction (Civil Works, Electromechanical) (EUACAEAF)

akta.pro secondary industries

Hydropower EPC & Civil Construction (Dams, Weirs, Tunnels, Penstocks) (EUAMADAB), Hydropower Turbines & Electro-Mechanical Equipment (Turbines, Generators, Governors) (EUAMADAC), Hydrology, Environmental & Fish Passage Solutions (Flow Modeling, Mitigation, Fish Ladders) (EUAMADAK)

Keywords

• Whitewater engineering
• Hydropower engineering
• Hydroelectric power plants
• Fish passage systems
• Whitewater stadium design

Headquarters

HQ city

Annecy

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Services (Maîtrise d'œuvre): Full project engineering from preliminary research to design, including studies, supplies, works and commissioning. Covers civil engineering, hydraulics, instrumentation and control, electromechanics, and control systems.
2. Product Sales: Sale of proprietary products including Omniflots® mobile obstacles, HYDROMAQ platforms, and specialized equipment like roof gates, pumping stations, and conveyor systems.
3. Hydropower Plant Engineering: Complete engineering for small hydro-electric power plants including water intake structures, penstocks, turbines, and electromechanical systems. Clients include EDF, local authorities, and independent energy producers.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels5 records

Core offering

Hydrostadium provides turnkey engineering services for whitewater sports facilities (stadiums, modular rivers, surfing waves) and small hydroelectric power plants, from preliminary studies and physical hydraulic modeling through design, supply, construction and commissioning. It also sells proprietary equipment such as Omniflots® mobile obstacles, RiverBox® modular rivers, FlowSurf™ wave systems and HYDROMAQ physical modeling platforms, serving EDF Group, local authorities, public institutions and private operators worldwide.

Product overview

Hydrostadium is an engineering company specializing in whitewater sports facilities and hydropower solutions, established in 2001 as an EDF subsidiary. The product portfolio consists of two main divisions: whitewater engineering (whitewater stadiums, Omniflots® mobile obstacles, RiverBox® demountable rivers, surfing waves including FlowSurf™ and FlowSurf River) and hydropower engineering (small hydroelectric power plants, penstocks, hydraulic tunnels, water intakes, fish passes). Supporting infrastructure includes pumping stations, roof gates, whitewater conveyors, and the HYDROMAQ hydraulic physical modeling platform. The company holds six international patents for its technologies and has delivered Olympic whitewater stadiums for Sydney 2000, Athens 2004, and Beijing 2008, as well as the Paris 2024 venue at Vaires-sur-Marne.

Differentiator

Problem solved

Functional benefit

Brands

• FlowSurf™: Swimming-pool application of Hydrostadium's surfing wave technology, featuring modular wave generation in pool environments.
• FlowSurf River
• Wavestadium®
• RiverBox®
• Omniflots®
• HydroNeige®

Quantifiable outcome

• Three Olympic whitewater stadiums built for Sydney, Athens and Beijing Games
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles5 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature7 records

Partnerships

Five partnerships are on record, tiered core, flagship and minor.

• Fédération Française de Canoë Kayak et Sports de Pagaie (FFCK)coreStrategic or Co-development Partner · 22 October 2018Two-year partnership signed in 2018 to develop the 'espaces, sites et itinéraires' service. Hydrostadium provides technical, policy, and legal support to project developers. Collaboration on promoting canoe-kayak and whitewater sports.
• Exo LoisirscoreImplementation/ SI/ Consulting Partner · 25 June 2018First contract for Wavedock® floating surfing wave installed at Tencin, Isère. Hydrostadium designed and built the facility opened March 2019.
• EDF GroupflagshipStrategic or Co-development PartnerEDF Group is the parent company of Hydrostadium (wholly-owned subsidiary created in 2001). Hydrostadium enables EDF to optimize its hydroelectric power plants while building sports facilities. Key client for both whitewater and hydroelectric engineering projects.
• Paddle Australia / EDF Énergies NouvellescoreStrategic or Co-development PartnerPartnership for 'Our New River Project' - second whitewater stadium at Penrith, Australia. EDF ER (EDF Renewable Energy subsidiary) aims to make the site 100% autonomous in electricity consumption for both existing and future venues.
• Domaines Skiables de FranceminorChannel Partner/ Reseller/ DistributorNetwork of ski area operators. Hydrostadium developing HydroNeige® concept for generating power from artificial snow infrastructure, reaching ski resort developers through this network.

Scale indicators7 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Knight Piésold: International consulting firm specializing in hydropower, dams, and water resources engineering. Competes with Hydrostadium for small and mini hydro projects, particularly in emerging markets where both firms have active project pipelines.
• Wavegarden: Spanish specialist in artificial surfing wave technology with multiple commercial deployments globally. Directly competes with Hydrostadium's FlowSurf™ and Wavedock® offerings in the artificial surf wave category, targeting the same leisure/resort customer base.
• UNIT Parkitect: Austrian engineering firm specializing in whitewater park design and construction. Direct competitor in the whitewater stadium engineering market, particularly for European municipal and Olympic-related projects.
• Stucky (Gruner Group): Swiss specialist engineering firm (part of Gruner) focused on hydropower, dams, and water infrastructure. Directly comparable to Hydrostadium's small hydro and penstock engineering activities for utility and public-sector clients.
• Natart (NRS): North American whitewater park and artificial river engineering specialist. Direct competitor in the whitewater stadium and artificial river market, comparable to Hydrostadium's RiverBox® and stadium offerings.

Broad incumbents

• Norconsult: Norwegian engineering consultancy with significant hydropower and water infrastructure practice. Comparable to Hydrostadium for small hydro EPC, dam safety, and fish passage design services across European markets.
• AFRY (formerly Pöyry): European engineering consultancy with deep hydropower expertise from the legacy Pöyry business. Competes with Hydrostadium on small and large hydro EPC, dam engineering, and environmental compliance work for utilities.
• Artelia: French-headquartered engineering group with strong water, hydropower, and infrastructure credentials (including legacy Sogreah). Competes with Hydrostadium for hydropower and water infrastructure engineering contracts in France and internationally.
• Tractebel (Engie): Large engineering consultancy owned by Engie, with deep hydropower and hydraulic engineering capabilities. Competes with Hydrostadium in small hydro EPC and dam engineering for utility and public-sector clients across Europe and globally.

Regional players

• HYDRO Exploitation: Swiss hydropower operations and engineering services firm focused on Alpine small hydro. Comparable to Hydrostadium's hydropower engineering and O&M activities, though primarily serving the Swiss market rather than France.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/hydrostadium
• Facebookfacebook.com/Hydrostadium

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 Hydrostadium