Sidesa

What Sidesa does

SIDESA (Syndicat Interdépartemental De l'Eau Seine Aval) is a French public interdepartmental syndicate (syndicat mixte) established in 1961, headquartered at 28 rue Alfred Kastler in Mont-Saint-Aignan, France. The organization provides coordination, technical advisory, and legal assistance services to approximately 49-60 local authorities (collectivités) across the Seine-Maritime department and part of the Eure department, focusing on water, sanitation, and aquatic environment management. Its core offerings include AMO (Assistance à Maîtrise d'Ouvrage — project owner assistance), regulatory compliance support, and inter-authority coordination functions. The organization also coordinates BAC Animation activities in partnership with AESN (Agence de l'Eau Seine-Normandie).

SIDESA operates with a lean staff of approximately 15 employees, functioning primarily as a public-sector intermediary and advisory body rather than a commercial enterprise. Its revenue model combines member authority contributions with a modest premium subscription fee of €150 per year per member, supplemented by fees for specific professional services. As a public syndicate, its financial structure is tied to public-sector budget cycles and statutory member obligations rather than market-driven revenue. The organization holds a regional monopoly-like position in its service territory due to its statutory mandate, making it essentially un-investable from a traditional PE/VC perspective but structurally resilient within its defined institutional role.

Name

Sidesa

Legal name

Syndicat Interdépartemental De l'Eau Seine Aval

Website

https://sidesa.fr

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

11–50 employees

Short description

SIDESA is a French public interdepartmental water syndicate founded in 1961, serving 49-60 local authorities across Seine-Maritime and Eure with technical advisory, AMO services, and aquatic environment coordination.

Ownership category

akta.pro rank

Product category

Public Water and Sanitation Management Services

NAICS

Environmental Consulting Services (54162)

SIC

Services-Engineering Services (8711)

akta.pro industry

PRIMARYBPAHAJAJ

Water, Wastewater & Stormwater Compliance

Business & Public Services/Professional Services (Legal, Accounting, Consulting)/Environmental, Health & Safety (EHS) Consulting

SECONDARYEUAHAIAK

Compliance Obligations Management (Permits-to-Controls Mapping)

Energy, Utilities & Environment/Environmental Compliance, Monitoring & Consulting/Environmental Management Systems (EMS) & ISO 14001 Consulting

SECONDARYEUAHAAAD

Permitting Strategy, Applications & Agency Negotiation

Energy, Utilities & Environment/Environmental Compliance, Monitoring & Consulting/Environmental Impact Assessment (EIA) & Permitting

Keywords

• Water management services
• Sanitation advisory services
• Public syndicate services
• Aquatic environment management
• Project management assistance

Headquarters

HQ city

Mont-saint-aignan

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services - Assistance à Maîtrise d'Ouvrage (AMO): Fee-based engineering, administrative, and legal services provided to public local authorities. Billing is based on actual time worked by team members, with pricing determined by the objectives of the collectivity and complexity of the operation.
2. Premium Subscription: Premium account subscription for 150€ HT per year, providing access to full content including technical and legal articles, Q&A responses, and the magazine Eaux Claires.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

SIDESA provides fee-based engineering, administrative, and legal Assistance à Maîtrise d'Ouvrage (AMO) services to public local authorities (collectivités) within Seine-Maritime and part of Eure. Its core service covers public procurement, service delegations, regulatory analysis, competency transfer studies, pre-litigation and litigation support, and Exterior Fire Protection (DECI). The organization also delivers coordinated water policy information, technical and legal advisory, and runs the Anim'l'Eau 76 catchment area animator network, complemented by an annual premium subscription to the Eaux Claires magazine and full technical/legal knowledge base.

Product overview

SIDESA (Syndicat Interdépartemental De l'Eau Seine Aval) is a public interdepartmental union serving 49 local authorities in Seine-Maritime and parts of Eure, France. The organization does not offer a unified software platform but provides a portfolio of services including a public website with technical/legal resources, fee-based project management assistance (AMO), an interactive Q&A database, a cartographic mapping tool (Cartothèque), and coordination of the Anim'l'Eau 76 catchment area animator network. The primary offerings are advisory and information services rather than software products.

Differentiator

Problem solved

Functional benefit

Products and services

• Assistance à Maîtrise d'Ouvrage (AMO) Fee-based engineering, administrative, and legal services for public sector clients covering public procurement, service delegations, annual service price/quality reports, service regulations analysis and drafting, competency transfer studies, technical and legal expertise in pre-litigation and litigation procedures, and Exterior Fire Protection (DECI). Services are billed by actual time worked, with rates determined by objectives and complexity of the operation, and are exclusively available to public collectivités.
• Eaux Claires Premium Subscription

Named customers1 record

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Agence de l'Eau Seine Normandie (AESN)coreStrategic or Co-development Partner · 1 January 2020Financial and strategic partner supporting the Coordination of BAC Animation in Seine-Maritime. AESN provides financial support for the Anim' l'Eau 76 network coordinated by SIDESA since 2020, which aims to protect water resources at the departmental scale by developing exchanges between actors and sharing knowledge and experiences.

Scale indicators4 records

Recent moves8 records

Expansion highlights3 records

Direct peers

• Egis: French engineering group with significant water, environment, and infrastructure consulting practices serving local authorities and public developers; directly comparable in offering public-sector AMO and engineering services across the water cycle.
• Burgeap: Environmental and water engineering consultancy specializing in water resources, hydrology, and environmental compliance for public and private clients; comparable to SIDESA's water-resource and catchment-area advisory activities.
• Antea Group: International environmental and water engineering consultancy that delivers water, sanitation, and environmental compliance services to public authorities — directly comparable to SIDESA's AMO service offering in scope and customer type.
• Cabinet Merlin: French engineering consultancy focused on water, sanitation, and aquatic environments for local authorities; closely comparable to SIDESA in domain focus (water cycle and public-sector AMO).
• SAFEGE (Suez Consulting): Engineering consultancy (part of SUEZ group) specializing in water cycle, environment, and urban infrastructure projects for public-sector clients in France; competes in the same water/sanitation AMO and engineering services space as SIDESA.
• ARTELIA: Independent engineering consultancy with water, environment, and urban infrastructure practices serving French public-sector clients; comparable to SIDESA as a multidisciplinary advisor on water and sanitation infrastructure projects.

Broad incumbents

• Cerema: Public center for expertise on environmental, transportation, and urban risks in France; provides technical and scientific support to local authorities on water, sanitation, and adaptation — directly comparable to SIDESA's role of supporting smaller collectivités with specialized expertise.
• Agence de l'Eau Seine-Normandie: French basin-level water agency that funds and coordinates water policy across the same Seine-Maritime territory where SIDESA operates; AESN is also SIDESA's strategic partner for BAC coordination, making it the closest institutional peer even though it operates at a larger basin scale.
• Veolia Eau France: Largest private water and sanitation operator in France, with extensive service-delegation contracts with the same communes and intercommunal structures that SIDESA advises; comparable as a counterpart on delegated public water/sanitation services.
• Suez Eau France: Major private operator of municipal water and wastewater services in France; relevant peer given SIDESA advises its member collectivités on public procurement and service delegation contracts involving operators like Suez.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xtwitter.com/Sidesa76
• Facebookfacebook.com/sidesa76
• LinkedInlinkedin.com/company/sidesa76

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Sidesa