Hydroplus

What Hydroplus does

Hydroplus, founded in 1991 and headquartered in Rueil-Malmaison, France, is a specialised engineering company that develops the patented Fusegate system for dam spillways and hydraulic structures. A Fusegate is a gravity-activated, self-operating spillway control device made of reinforced concrete or steel that functions as a sealed wall under normal conditions and progressively overturns during extreme floods to increase discharge capacity. The company offers multiple variants — Classical, Folding, Labyrinth, Semi-Labyrinth, and Piano Key Weir Fusegates — alongside the Hydroliennes water oxygenation/destratification technology, and operates the proprietary Hydrolab hydraulic testing facility in support of design validation. Hydroplus holds registered trademarks on Fusegate, Hydroplus, and Hydroliennes, and serves government water authorities, hydroelectric operators, and municipal flood management bodies across five continents.

The company operates a project-based business model, delivering bespoke engineering, prefabrication, and installation on a multi-year contract basis, complemented by hydraulic studies (over 700 conducted) and ongoing training and support services. Customers are exclusively public sector or quasi-public entities (US Army Corps of Engineers, French government dam authorities, Brazilian water agencies, African and Asian hydroelectric operators, Australian state water bodies), with no disclosed SMB or private commercial segment. Pricing is custom and non-public, determined per project through competitive tenders or direct negotiation. Hydroplus sells via direct enterprise field sales and leverages the VINCI Construction / Soletanche Freyssinet distribution network, with regional offices in France (HQ), USA (Palmetto, FL), and Brazil (Rio de Janeiro) supporting global delivery.

Hydroplus is a privately held subsidiary of Soletanche Freyssinet, itself part of VINCI Construction, the global infrastructure conglomerate. The company employs 16 people, is ISO 9001/14001/45001 certified, and has received 15 industry excellence awards including two ASDSO National Rehabilitation Project of the Year Awards (2002, 2021) and ACEC/PA Diamond Awards for Engineering Excellence (2019). Its projects have collectively added over 500 million m³ of reservoir storage capacity worldwide, with individual project outcomes ranging from +8% to +447% storage capacity gains and discharge capacity multipliers of 4× to 12×.

Name

Hydroplus

Legal name

HYDROPLUS

Website

https://hydroplus.com

Company type

Private

Founded year

1991

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Dam Spillway and Hydraulic Engineering Equipment

NAICS

Hydroelectric Power Generation (221111), Water Supply and Irrigation Systems (22131)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623)

akta.pro primary industry

Hydropower EPC & Civil Construction (Dams, Weirs, Tunnels, Penstocks) (EUAMADAB)

Keywords

• Dam spillway engineering
• Hydraulic engineering services
• Reservoir storage upgrades
• Flood management infrastructure
• Fusegate spillway systems

Headquarters

HQ city

Rueil-Malmaison

HQ country

France

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Fusegate Design, Manufacturing, and Installation: End-to-end project delivery for Fusegate systems on dams and hydraulic structures. Includes hydraulic studies, custom design, prefabrication of concrete or steel modules, installation, and commissioning. Revenue is earned on a project-by-project basis for new dam construction, dam rehabilitation, and spillway upgrades.
2. Hydraulic Engineering Studies: Hydroplus conducts hydraulic studies for clients to assess spillway capacity, flood risk, and optimal Fusegate configuration. These studies (over 700 conducted to date) precede and complement project delivery contracts.
3. Ongoing Support and Training: Partner and Owner staff are involved and trained in the building and operation of Hydroplus systems, providing an ongoing services component tied to project delivery.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Hydroplus designs, engineers, manufactures, and installs proprietary Fusegate spillway control systems for dams and hydraulic structures. Their offerings include the Classical Fusegate and Folding Fusegate product families (with labyrinth, semi-labyrinth, and piano key weir variants), supported by bespoke hydraulic engineering studies, custom prefabrication of reinforced concrete or steel modules, on-site installation, commissioning, and operator training.

Product overview

Hydroplus is a specialized engineering company that develops innovative, sustainable, and environmentally friendly solutions for dam spillways and hydraulic structures. The company offers two core product lines: the Classic Fusegate and the Folding Fusegate. The Classic Fusegate is a self-actuating, gravity-driven device that tips over during exceptional floods to increase discharge capacity while maintaining reservoir storage. The Folding Fusegate offers a similar tipping mechanism but folds downward like a valve and can be manually reset after floods. Both products are designed to enhance dam safety, increase water storage capacity, and support clean energy generation through improved reservoir management.

Differentiator

Problem solved

Functional benefit

Brands

• Fusegate: Registered trademark for Hydroplus' core product - innovative, sustainable spillway solutions for dams and hydraulic structures
• Hydroliennes
• Hydrolab

Products and services

• Classic Fusegate A gravity-activated, self-operating reinforced concrete or steel spillway wall installed on dam crests. It functions as a sealed wall under normal conditions and progressively tips over under exceptional flood conditions to increase discharge capacity, increasing reservoir storage without compromising dam safety. Targeted at dam owners, water authorities, and hydroelectric operators.
• Folding Fusegate A fusegate device that folds downward like a valve during floods rather than being dragged by the current, and can be manually reset by the operator after the flood passes. Uses a negative pressure chamber for actuation. Designed for dam operators seeking a recoverable, reusable spillway safety solution.
• Hydraulic Engineering Studies Bespoke hydraulic studies assessing spillway capacity, flood risk, and optimal Fusegate configuration for dam safety, storage, and flood management projects. Targeted at government dam authorities, hydroelectric operators, and engineering consultancies evaluating dam upgrades.

Quantifiable outcome

• Storage capacity of existing reservoir dams worldwide increased by 500 million m3 — equivalent to yearly drinking water consumption for over 10 million people
• +4 more outcomes

Named customers21 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Five partnerships are on record, tiered core and supporting.

• Soletanche FreyssinetcoreStrategic or Co-development PartnerSoletanche Freyssinet is the parent company of Hydroplus. As a member of this specialist geotechnical and structural engineering group, Hydroplus benefits from shared expertise, corporate resources, and the group's global infrastructure client network. Hydroplus adheres to Soletanche Freyssinet's privacy, cookies, and data protection policies.
• VINCI ConstructioncoreStrategic or Co-development PartnerVINCI Construction is the ultimate parent company of Soletanche Freyssinet and Hydroplus. Hydroplus is positioned as a subsidiary of VINCI Construction. The relationship provides access to VINCI Construction's engineering division of 200+ specialists, global distribution channels, and cross-selling opportunities within the VINCI ecosystem.
• Renowned French and International Research Centres and LaboratoriessupportingTechnology or IntegrationHydroplus conducts R&D in partnership with recognised French and international research centres and laboratories to develop new Fusegate systems, optimise existing solutions, and expand application scope. These partnerships complement Hydroplus's internal Hydrolab testing facility.
• Local Businesses and CommunitiessupportingImplementation/ SI/ Consulting PartnerHydroplus views local businesses and communities as essential partners in project delivery. Partner and Owner staff are involved and trained in the construction and operation of Hydroplus systems. This approach ensures local knowledge integration and capacity building.
• Main Contractors and Consulting EngineerscoreImplementation/ SI/ Consulting PartnerHydroplus works alongside main contractors and their consulting engineers to design, construct, and complete Fusegate projects. This collaborative approach controls project risks, avoids work hazards, and optimises quality. The company can leverage VINCI Construction's engineering division of 200+ specialists.

Scale indicators8 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• GE Renewable Energy (Hydro): GE's hydro business supplies turbines, generators, and control systems for hydroelectric facilities worldwide, working with the same government and utility customers as Hydroplus. It competes broadly for dam modernization and rehabilitation work, though it does not offer the Fusegate-specific spillway technology.
• WeBuild (formerly Salini Impregilo): WeBuild is one of the world's largest dam and large infrastructure EPC contractors, with a portfolio that includes major hydroelectric dams. It frequently partners with or competes against Hydroplus for dam upgrade contracts, often integrating Fusegate installations within larger civil works packages.
• Voith Hydro: Voith Hydro is one of the world's largest suppliers of electromechanical equipment for hydroelectric power plants, including turbines, generators, and automation. While it does not specialize in spillway Fusegate systems like Hydroplus, it serves the same global hydropower and dam-owner customer base and competes for specification slots on dam upgrade projects.
• Andritz Hydro: Andritz Hydro is a global supplier of turbines, generators, and service solutions for hydropower plants and dam-related infrastructure. Like Hydroplus, it serves major dam owners and utilities, but operates at much larger scale across the broader hydro value chain rather than specializing in spillway control devices.
• Sinohydro: Sinohydro is a major Chinese state-owned EPC contractor specializing in dams, hydropower, and water infrastructure globally. It is a relevant peer in the dam-construction ecosystem and sometimes incorporates spillway upgrades (including Fusegate retrofits) into its delivery scope.
• Bouygues Construction: Bouygues Construction is a major European contractor active in dams, hydraulic works, and large infrastructure projects. It is comparable to Hydroplus as part of the broader ecosystem of large contractors pursuing dam rehabilitation contracts, particularly in Europe and Africa.

Direct peers

• Stucky (now part of Gruner): Stucky is a Swiss engineering firm with deep expertise in dams, hydropower, and hydraulic structures, including spillway design. Following its integration into Gruner, it competes with Hydroplus for dam rehabilitation and spillway-upgrade mandates from international dam owners and multilateral institutions.
• Tractebel (formerly Coyne et Bellier): Tractebel's dam and hydropower engineering practice (originating from Coyne et Bellier) is a leading specialty consultant for dam design, safety, and rehabilitation projects globally. It is the closest direct peer to Hydroplus in terms of dam-safety engineering expertise and serves a substantially overlapping customer base, though it is a consultancy rather than a product manufacturer.
• Artelia: Artelia is an international engineering consultancy with strong capabilities in dams, hydraulic structures, and water resource management. It competes with Hydroplus for dam-owner engineering mandates, including spillway assessment and rehabilitation design, particularly across Europe and francophone Africa.

Regional players

• Norconsult: Norconsult is a leading Scandinavian engineering consultancy with significant hydropower and dam-safety expertise. It is a relevant peer for dam rehabilitation and spillway upgrade consulting in Northern Europe and selected international markets, with comparable technical depth though a different geographic center of gravity.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat7 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@Hydroplus_fusegate
• LinkedInlinkedin.com/company/hydroplussas

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

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 Hydroplus