Conservatoire d'espaces naturels d'Alsace

What Conservatoire d'espaces naturels d'Alsace does

The Conservatoire d'espaces naturels d'Alsace (CEN Alsace / CSA) is a French non-profit association founded in 1976 and recognized as an association d'utilité publique, specializing in long-term nature conservation across the Alsace region. Its core method is acquisition or long-term lease (bail emphytéotique) of natural sites to guarantee permanent protection; it manages 383 sites covering 3,494 hectares, including 4 Réserves Naturelles Nationales and 9 Réserves Naturelles Régionales — 9 of the 11 regional nature reserves in Alsace. The organization employs 31 expert staff, coordinates 162 volunteer conservators, runs 76 annual 'chantiers nature' workdays, and serves a base of 1,825 members. Service lines include ecological restoration, scientific monitoring (the Service d'Information Naturaliste and the regional butterfly action plan covering 56 species), environmental compensation (ERCA), and Real Environmental Obligations (ORE) on private land. Technology is non-proprietary: standard web infrastructure hosted by ASTERIUM/OVH, participation in the Faune-Alsace citizen-science platform (ODONAT Grand Est), and a distinctive audio-guided tour ('Balade Sonore du Delta de la Sauer') produced with Collectif SONYA.

Revenue is generated through a diversified public-purpose model. Recurring streams include individual and organizational membership subscriptions, online donations via the HelloAsso platform, legacy bequests, forest-subscription campaigns (targeting 100 ha of old-growth acquisition by 2027), and merchandise sales. Project-funded streams include subsidies and contracts from the European Union (FEDER), Région Grand Est, Agence de l'Eau Rhin-Meuse, Collectivité européenne d'Alsace, and DREAL Grand Est for Natura 2000 contracts, reserve management, and the 2024 RNR Management Mission (€210,217.49). The go-to-market is community-led and event-driven: a network of volunteer conservators, annual nature workdays, guided visits, citizen-science programs (Faune-Alsace), the quarterly 'Truly' newsletter, joint 'Magazine des 3 CEN' with CEN Lorraine and CEN Champagne-Ardenne, and partnerships with LPO Alsace, BUFO, OPIE, municipalities (Bischoffsheim, Obernai, Rosenwiller, Weiterswiller), and the Fédération des CENs. Pricing is not publicly disclosed; participation events are free, donations are open-amount via HelloAsso, and membership renews annually.

Name

Conservatoire d'espaces naturels d'Alsace

Legal name

CONSERVATOIRE DES SITES ALSACIENS

Website

https://conservatoire-sites-alsaciens.eu

Company type

Private

Founded year

1976

Operating status

Operating

Headcount range

11–50 employees

Short description

The Conservatoire d'espaces naturels d'Alsace is a French public-utility association founded in 1976 that acquires, leases, and manages natural sites in Alsace to protect biodiversity, currently stewarding 383 sites covering 3,494 hectares across 13 nature reserves.

Ownership category

akta.pro rank

Product category

Nature Conservation Services

NAICS

Nature Parks and Other Similar Institutions (71219)

SIC

Real Estate Agents & Managers (For Others) (6531), Real Estate Dealers (For Their Own Account) (6532)

akta.pro primary industry

Land Trusts & Protected Areas (BPAGAGAC)

akta.pro secondary industries

Biodiversity & Habitat Conservation (BPAGAGAA), Wildlife Conservation & Species Protection (BPAGAGAB), Conservation Easements & Land Trust Services (AFAMAMAH)

Keywords

• Nature conservation services
• Biodiversity protection
• Habitat management
• Environmental stewardship
• Nature reserve management

Headquarters

HQ city

Cernay

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Membership Subscriptions and Donations: Members pay annual subscriptions (adhésions) and donors contribute through the HelloAsso platform. The association runs targeted fundraising campaigns including 'souscriptions forêts' (forest subscriptions) to acquire woodland parcels, and 'appels à dons' for specific conservation projects such as old-growth forest protection.
2. Public Subsidies and Grants: The association receives funding from public sources including the European Union (FEDER), the Région Grand Est, the Agence de l'Eau Rhin-Meuse, the Collectivité européenne d'Alsace, and DREAL Grand Est for specific projects such as Natura 2000 contracts, reserve management, and environmental compensation measures.
3. Legacy Bequests and Donations: Citizens can donate parcels of forest to the association or leave bequests (legs) to support long-term conservation objectives.
4. Merchandise Sales: Sale of merchandise such as commemorative t-shirts (e.g., CEN 50th anniversary t-shirts) through the HelloAsso boutique.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

The CEN Alsace acquires, leases and manages natural sites across Alsace to guarantee the long-term conservation of protected habitats and the biodiversity they shelter. It manages 383 sites covering 3,494 hectares (including 4 National and 9 Regional Nature Reserves), runs ecological restoration, scientific monitoring, environmental compensation services (ERCA), Real Environmental Obligations (ORE), and a forest preservation strategy, while engaging citizens through volunteer workdays, guided visits and citizen-science programs.

Product overview

The Conservatoire d'espaces naturels d'Alsace (CEN Alsace) is a non-profit association recognized as a public utility, specializing in nature conservation in Alsace. The organization operates a comprehensive portfolio of services centered on the protection, acquisition, and management of natural spaces. Core offerings include: land acquisition and long-term rental of natural sites (383 sites, 3,494 hectares managed); hands-on volunteer conservation work programs (Chantiers Nature) and guided nature visits; and management of 4 National Nature Reserves (RNN) and 9 Regional Nature Reserves (RNR). Supplementary programs include the Regional Butterfly Action Plan, participatory scientific monitoring, old-growth forest preservation strategy, environmental compensation measures, and Real Environmental Obligations. The organization also produces educational content including the quarterly Truly newsletter, the joint Magazine des 3 CEN, and audio-based experiences like the Sound Walk at Delta de la Sauer. The portfolio functions as an integrated conservation service combining land stewardship, volunteer engagement, scientific monitoring, environmental advisory, and public education.

Differentiator

Problem solved

Functional benefit

Brands

• Truly: Quarterly newsletter of CEN Alsace
• Magazine des 3 CEN

Products and services

• Protection and Acquisition of Natural Spaces

Quantifiable outcome

• 3,494 hectares of natural habitats protected long-term through land acquisition and leasing
• +4 more outcomes

Named customers5 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

14 partnerships are on record, tiered core and minor.

• Direction Régionale de l'Environnement, de l'Aménagement et du Logement Grand Est (DREAL Grand Est)coreStrategic or Co-development Partner · 1 December 2019DREAL Grand Est commissioned the three CENs of the Grand Est region (CEN Lorraine as coordinator, CEN Champagne-Ardenne, and CEN Alsace) to draft the regional adaptation (déclinaison) of the PNA Papillons de jour (National Action Plan for Day-flying Butterflies, 2018-2028). CEN Alsace brings its expertise from its previous role as animator of the Maculinea regional action plan.
• Conservatoire d'Espaces Naturels LorrainecoreStrategic or Co-development PartnerOne of three CENs in the Grand Est region collaborating on shared conservation objectives. CEN Lorraine serves as the regional coordinator for the PNA Papillons de jour adaptation and the OpDyNat Interreg project. The three CENs jointly publish the 'Magazine des 3 CEN' and coordinate the LIFE Biodiv'Est program.
• Conservatoire d'Espaces Naturels Champagne-ArdennecoreStrategic or Co-development PartnerOne of three CENs in the Grand Est region collaborating on shared conservation objectives, including the joint 'Magazine des 3 CEN', LIFE Biodiv'Est citizen engagement program, and the PNA Papillons de jour regional adaptation.
• EDFminorOthersProperty owner of dry grassland habitats on Île du Rhin (Vogelgrun to Rosenau), which have been entrusted to CEN Alsace for ecological management since 1987. EDF provides land access while CEN Alsace provides site management expertise.
• LPO AlsacecoreStrategic or Co-development PartnerLPO Alsace (Ligue pour la Protection des Oiseaux) partnered with CEN Alsace and municipalities to co-create the new RNR Collines sèches du Bischenberg, de l'Immerchenberg et du Holiesel (nearly 100 ha), inaugurated in October 2024.
• Association BUFOminorStrategic or Co-development PartnerAlsace-based association specializing in amphibian conservation. Co-organizes nine annual events under the national 'Fréquence Grenouille' campaign, coordinated by the network of CENs and Réserves Naturelles de France.
• Collectif SONYAminorStrategic or Co-development PartnerAudio creation collective that designed and produced the 'Balade Sonore du Delta de la Sauer' — an immersive audio-guided tour of the Delta de la Sauer nature reserve, created for the 25th anniversary of the reserve.
• OPIE (Office Pour les Insectes et leur Environnement)minorStrategic or Co-development PartnerNational organization coordinating the PNA Papillons de jour. OPIE authored the national plan (2018-2028) and manages the national butterflies website (papillons.pnaopie.fr).
• Communes of Bischoffsheim, Obernai, and RosenwillercoreStrategic or Co-development PartnerThree municipalities partnered with CEN Alsace and LPO Alsace to create the new RNR Collines sèches du Bischenberg, de l'Immerchenberg et du Holiesel, protecting nearly 100 hectares on their communal lands.
• Fédération des Conservatoire d'Espaces NaturelscoreStrategic or Co-development PartnerNational federation of all Conservatoire d'Espaces Naturels in France, coordinating shared programs, the Fréquence Grenouille annual campaign, and professional development. CEN Alsace participates in its director recruitment processes.
• SDEA Alsace-MoselleminorStrategic or Co-development PartnerWater management authority (Syndicat des Eaux et de l'Assainissement Alsace-Moselle) led the renaturation project of the Soultzbaechel watercourse at Weiterswiller, in partnership with CEN Alsace and PNR des Vosges du Nord.
• IMAGOminorStrategic or Co-development PartnerPartner organization that co-launched the 'Papillon de l'Année' (Butterfly of the Year) annual action with CEN Alsace in 2021, to highlight a species, raise public awareness, and improve knowledge of its distribution.
• Réserves Naturelles de FrancecoreStrategic or Co-development PartnerNational network of nature reserves in France, coordinating the annual 'Fréquence Grenouille' campaign and shared conservation programs in which CEN Alsace participates.
• HelloAssocoreChannel Partner/ Reseller/ DistributorOnline fundraising and membership platform provider (100% secure) used by CEN Alsace to process memberships, donations, forest subscriptions, and merchandise sales. CEN Alsace uses HelloAsso for all online financial transactions.

Scale indicators11 records

Recent moves6 records

Expansion highlights5 records

Others

• The Nature Conservancy (TNC): Global land-conservation NGO whose model (acquisition, lease, easements) closely mirrors CEN Alsace's 'souscription forêt' and bail emphytéotique approach. Comparable as an international reference for the long-term land-trust mechanism, not a direct competitor.

Broad incumbents

• WWF France: Major international conservation NGO with active programs in France including habitat protection, biodiversity monitoring, and public engagement. Comparable as a fundraising-driven conservation organization with significant volunteer network and policy influence.
• France Nature Environnement (FNE): Largest French federation of environmental NGOs, with regional affiliates in Grand Est. Comparable as an advocacy- and volunteer-driven environmental association operating across the same regions as CEN Alsace.
• Office National des Forêts (ONF): French national forestry agency managing public forests including old-growth and ecologically sensitive stands. Overlaps with CEN Alsace's forest subscription program and habitat management work in Alsace forests, though at much larger scale and with a forestry-production mandate.
• Réserves Naturelles de France: National network coordinating France's nature reserves (RNN/RNR), including CEN Alsace-managed reserves. Co-organizes the annual 'Fréquence Grenouille' campaign and provides a relevant comparator for reserve management and community engagement at national scale.
• Conservatoire du Littoral: National French public agency that acquires and manages coastal natural sites threatened by urban pressure. Closely comparable mission (long-term land stewardship for conservation) but at national scale and focused on littoral/coastal zones rather than terrestrial Alsace habitats.
• Fédération des Conservatoires d'Espaces Naturels: National federation of all CENs in France. CEN Alsace is a member; the federation coordinates shared programs, professional development, and the director-level recruitment pipeline. Comparable as the apex organizational body for the same conservation model.

Direct peers

• Ligue pour la Protection des Oiseaux (LPO) Alsace / LPO France: France's leading bird and biodiversity protection NGO and active partner of CEN Alsace (co-creator of the 2024 RNR Collines sèches). Directly comparable as a regional environmental NGO combining land management, volunteer engagement, citizen science, and advocacy.
• Conservatoire d'espaces naturels de Champagne-Ardenne: Third CEN of Grand Est region. Shares identical operating model, governance structure, and joint publication/membership programs with CEN Alsace; closest functional peer in terms of mission, scale, and funding mix.
• Conservatoire d'espaces naturels de Lorraine: Sister Conservatoire d'espaces naturels in the Grand Est region. Operates the same land-acquisition/lease conservation model, coordinates with CEN Alsace on the PNA Papillons de jour and the joint Magazine des 3 CEN, making it the most directly comparable peer.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/@cenalsace1108
• Facebookfacebook.com/ConservatoireSitesAlsaciens
• LinkedInlinkedin.com/company/conservatoire-des-sites-alsaciens
• Instagraminstagram.com/cen_alsace

Compliance1 record

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 Conservatoire d'espaces naturels d'Alsace