What Hydratop does

Hydratop (legal name SAS Hydratop) is a French water and environmental engineering consultancy founded on 1 June 2002 by Patrice De La Bastille and headquartered in Tiercé, Maine-et-Loire. The firm delivers technical studies and advisory services across autonomous and collective sanitation, stormwater management, aquatic environment and wetland delineation, environmental impact assessments, industrial ICPE regulatory dossiers, and complementary offerings such as project management assistance (AMO), carbon footprint assessments (Bilans Carbones), and soil/permeability testing. Its toolset combines industry-standard environmental engineering software (ARCGIS, QGIS, ZWCAD 2021, CANOE, HEC RAS, WINFLUID, AVELOUR, YPRESIA Assainissement, HYDROUTI) with field instrumentation including Trimble R2 GPS, laser levels, Edelman augers, and constant-level permeameters.

The company is organized as a SAS (Société par Actions Simplifiée) under current leadership of Cyril Noirtin, who succeeded founder Patrice De La Bastille in December 2020 alongside the internal promotion of Stanislas Créton to study manager. Hydratop holds the OPQIBI 0803 qualification (obtained April 2021) in sanitation studies and receptor medium protection, which underpins its eligibility for regulated public-sector tenders.

Hydratop generates revenue through project-based professional services billed to three customer segments: local authorities and public entities (collectivités, flagged as primary), businesses requiring ICPE compliance, and individual homeowners needing autonomous sanitation studies. It operates exclusively in the Grand Ouest of France — Pays de la Loire, Normandie, and Île-de-France — reaching customers through direct advisory relationships and a corporate website/blog channel. Pricing is custom-quoted per project; no public pricing or revenue figures are disclosed. The firm employs 1–10 people and remains a founder-controlled, privately held SAS with no external funding, partnerships, acquisitions, or AI/ML capabilities indicated.

Name

Hydratop

Legal name

SAS Hydratop

Website

https://hydratop.net

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

1–10 employees

Short description

Hydratop is a French water and environmental engineering consultancy, founded in 2002 and based in Tiercé, Maine-et-Loire, providing sanitation, stormwater, aquatic environment, and ICPE regulatory studies to local authorities, businesses, and individuals across the Grand Ouest of France.

Ownership category

akta.pro rank

Product category

Environmental Engineering Consulting Services

NAICS

Environmental Consulting Services (541620), Water, Sewage and Other Systems (2213)

SIC

Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Water Supply (4941)

akta.pro primary industry

Water, Wastewater & Hydraulics Engineering Consulting (BPAHAIAD)

akta.pro secondary industries

Sewer Pump/Lift Stations & Wet Wells (EUANACAC), Drinking Water Distribution Network Operations (Mains, Valves, Hydrants, Service Lines) (EUANAAAE), Wellhead Protection & Source Water Protection Studies (EUAHAFAK)

Keywords

• Environmental engineering consulting
• Wastewater treatment studies
• Stormwater management services
• Sanitation study services
• Aquatic environment assessments

Headquarters

HQ city

Tiercé

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Environmental Engineering Studies: Hydratop generates revenue through professional services providing water, sanitation, and environmental engineering studies. Services include autonomous sanitation studies, collective sanitation schemes, rainwater management studies, aquatic environment assessments, and environmental impact studies for various client types including individuals, businesses, and local authorities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Hydratop is a French water and environmental engineering consultancy that delivers technical studies and advisory services in sanitation (autonomous and collective wastewater systems), stormwater management, aquatic environment assessments (wetland delineation, Natura 2000 studies), environmental impact studies, and ICPE regulatory documentation. The firm primarily serves local authorities, businesses, and individuals across the Grand Ouest region of France.

Product overview

Hydratop is a water and environment engineering consultancy offering a unified portfolio of studies and advisory services rather than a modular software product. The core offerings comprise specialized studies for autonomous and collective sanitation systems, stormwater management, aquatic environment assessments, environmental impact studies, and ICPE regulatory documentation. These services are complemented by support services including project management assistance (AMO), carbon footprint assessments (Bilans Carbones), and soil/permeability testing. The company operates primarily for three client segments: private individuals (particuliers), businesses (entreprises), and local authorities (collectivités), providing technical expertise compliant with French environmental regulations.

Differentiator

Problem solved

Functional benefit

Products and services

• Autonomous / Non-Collective Sanitation Studies (Études d'Assainissement Autonome – Non Collectif) Studies for autonomous sanitation systems including Fosse toutes eaux, filtre à sable, microstation, and filtre compact solutions, plus diagnostics of existing installations and compliance verification for non-collective sanitation. Targeted at individual homeowners and small properties not connected to public sewer networks.
• Collective Wastewater Sanitation Studies (Études d'Assainissement Collectif des Eaux Usées) Comprehensive studies for collective wastewater systems including Schéma de Zonage d'Assainissement, sewage system diagnostics, master sanitation plans, sludge valorization studies, treatment plant incidence studies, self-monitoring and 24-hour balance controls, and connection compliance reviews. Primarily serves local government authorities.
• Stormwater Sanitation Studies (Études d'Assainissement des Eaux Pluviales) Hydraulic studies and stormwater management including dimensioning of treatment structures, water-law incidence studies for urban developments (lotissements, activity zones), hydraulic road-network studies, and hydraulic network modeling.
• Aquatic Environment and Natural Zone Studies (Études Milieux Aquatiques et Zones Naturelles) Environmental studies covering wetland delineation and incidence, hydrobiological assessments, river restoration and bank rehabilitation, pond/lake construction or regularization studies, and Natura 2000 incidence studies.
• Environmental Impact Studies (Études d'Impact) Impact studies for urban developments including ZAC (Zone d'Aménagement Concerté) and artisan/industrial zones, assessing the environmental effects of construction projects.
• ICPE Regulatory Documentation (Dossiers ICPE) Regulatory documentation services for Installations Classées pour la Protection de l'Environnement including declaration, registration and authorization procedures, environmental audits, treatment system dimensioning, regulation monitoring, and sludge spreading plans. Targeted at industrial and commercial businesses.
• Project Management Assistance (Assistance à Maîtrise d'Ouvrage, AMO) Project management assistance service supporting clients through construction projects from request for proposals to contractor selection and site supervision.
• Carbon Footprint Assessment (Bilans Carbones) Carbon footprint assessment service measuring and reporting greenhouse gas emissions associated with client operations or projects.
• Pedological Studies and Permeability Testing (Études Pédologiques et Tests de Perméabilité) Soil analysis services including pedological studies using Edelman augers and constant-level permeameters (Porchet) to assess ground characteristics for sanitation system design.

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Ginger CEBTP: Major French engineering group (Socotec) covering environmental studies, geotechnics, sanitation diagnostics, and ICPE dossiers across France. Much larger incumbent that competes with Hydratop for both public and private mandates.
• setec Hydraulique & Environnement: Dedicated environmental and hydraulic engineering business line of setec group, covering sanitation schémas directeurs, hydraulic modeling, and water resource studies. Larger incumbent operating in the same French regulatory environment.
• Suez Consulting (SAFEGE+iCare): Suez's consulting arm provides water utility engineering and environmental advisory to municipalities across France. Broader portfolio of digital and operational services alongside Hydratop's core study engineering services.
• Antea Group France: French environmental and water engineering consultancy operating under the global Antea brand. Offers water resources, sanitation, and environmental impact studies aligned with Hydratop's services, but at larger project scale.
• Artelia: Large French engineering group with a dedicated Water, Environment, and Maritime business line covering sanitation, hydraulics, and ICPE work. Larger-scale peer competing in similar public tenders.

Direct peers

• Naldeo: French engineering consultancy group covering water, environment, and urban development studies with strong local government client base. Overlapping offer on hydraulic modeling, sanitation schémas directeurs, and environmental impact studies.
• SAFEGE: Suez-owned engineering consultancy specializing in water, sanitation, hydraulics, and environmental infrastructure studies. Closest large-scale analogue for Hydratop's autonomous/collective sanitation and stormwater study work in France.
• Altereo: French environmental and water engineering consultancy serving local authorities on sanitation, stormwater, and water resource studies. Mid-sized peer with similar customer mix (collectivités, aménageurs) and overlapping service portfolio.
• BURGEAP: French water, environment, and geotechnical engineering consultancy (part of Egis). Provides sanitation, hydrogeology, and ICPE services directly comparable to Hydratop's practice, though typically larger and Île-de-France based.
• Cycla (formerly SEPIA): French environmental engineering firm focused on aquatic environments, ecological restoration, and water/environmental studies for public authorities. Comparable mid-sized peer operating in similar French regional markets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Hydratop