Addrn

What Addrn does

ADDRN (Agence d'urbanisme de la région de Saint-Nazaire) is a French non-profit urban planning agency constituted as an Association Loi 1901, founded in 1989 and headquartered in Saint-Nazaire, Loire-Atlantique. The agency serves the ELLO territory (Estuaire et Littoral Loire Océan), a contiguous zone of eight intercommunalities spanning western Loire-Atlantique and southern Brittany with approximately 177,000 resident actives. Its core mission is to provide local and regional public authorities with territorial observation, urban planning studies (SCOT, PLUi), strategic planning support, and prospective research, covering the complete urban planning cycle from data collection to project implementation.

ADDRN's deliverables include a Lizmap-based web cartography platform (Datagences) integrated with the regional data.datagences-bretagne.bzh infrastructure, providing interactive thematic indicators on demographics, economy, and housing; the Atlas ELLO territorial atlas; the Play-ZAN pedagogical board-game animation licensed from AUAT for Zero Net Artificialization acculturation; and tailored Plans Guides for small-town revitalization under the national Petites Villes de Demain and departmental Coeur de Bourg programs. Technology is a means of distributing analysis outputs rather than a product surface; the organization has no commercial APIs, no proprietary AI/ML capabilities, and no app distribution.

The business model is structured entirely around 'programmes partenariaux' — annual partnership programs with member municipalities, the Loire-Atlantique Department, the Pôle Métropolitain Nantes Saint-Nazaire, and national agencies (ANCT, CEREMA, Conservatoire du Littoral). Revenue flows from public institutional contributions and co-financed research programs rather than transactional fees, making ADDRN structurally non-commercial. Its research arm is anchored by a CIFRE doctoral thesis on Loire estuary climate adaptation co-financed with Université de Nantes (ETG-Geolittomer). The agency's 11-50 employees operate under a governance model in which Nantes Université has held a permanent board seat since March 2023, and the organization holds membership-adjacent roles in FNAU and ANCT national frameworks.

Name

Addrn

Legal name

ADDRN (Agence d'urbanisme de la région de Saint-Nazaire), Association Loi 1901

Website

https://addrn.fr

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

11–50 employees

Short description

ADDRN is a French non-profit urban planning agency (Association Loi 1901) that provides territorial observation, planning studies, and prospective research to public authorities across the eight-intercommunality ELLO territory around Saint-Nazaire. It generates revenue exclusively through public partnership programs.

Ownership category

akta.pro rank

Product category

Urban Planning Services

NAICS

Administration of Urban Planning and Community and Rural Development (92512)

SIC

Services-Management Consulting Services (8742)

akta.pro industry

PRIMARYBPAJANAL

Real Estate Public-Private Partnership (PPP) & Infrastructure-Adjacent Real Estate Advisory

Business & Public Services/Real Estate Services (Brokerage, Property Management)/Real Estate Advisory & Consulting (Investment, Strategy)

Keywords

• Urban planning services
• Territorial observation
• Strategic planning studies
• Urban development consulting
• Land use planning

Headquarters

HQ city

Saint-nazaire

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, Infrastructure

Revenue model

1. Partnership Programs: ADDRN operates through 'programmes partenariaux' (partnership programs) with public institutions, local authorities, and research institutions. These collaborative programs fund the agency's urban planning studies, research projects, and territorial observation activities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

ADDRN is a non-profit urban planning agency that provides territorial observation, strategic planning studies (SCOT, PLUi), urban project assistance, prospective research, and educational animations to public authorities across the ELLO territory (eight intercommunalities in western Loire-Atlantique and southern Brittany). It operates via multi-year partnership programs funded by its member institutions and delivers outputs such as territorial databases, web mapping tools, atlases, and tailored revitalization guides for small towns.

Product overview

ADDRN (Agence d'urbanisme de Saint-Nazaire) operates as a public interest association under French Law 1901, functioning as a regional urban planning agency rather than a technology product company. The organization offers a portfolio of planning services and tools including: a web cartography platform (Datagences) providing interactive territorial data visualization; Play-ZAN, an educational animation for land sobriety planning; the ELLO Atlas documenting regional territorial characteristics; and customized urban revitalization planning guides for municipalities. These offerings constitute consulting and advisory services in urban planning, not software products or platforms with technical integrations or APIs.

Differentiator

Problem solved

Functional benefit

Brands

• ELLO: Territory Estuaire et Littoral Loire Océan - a specific geographic area covering eight intercommunalities in western Loire-Atlantique and southern Brittany.

Products and services

• Datagences — Web Cartography Interactive web mapping platform providing thematic territorial indicators (socio-demographic, economic, housing, physician density, private sector employment, vacancy rates) for the ELLO territory, built on Lizmap/QGIS Server and integrated with data.datagences-bretagne.bzh. Used by local authorities, researchers, and the public for territorial analysis.
• Play-ZAN Pedagogical Animation Educational board-game style animation tool that helps local authorities understand and plan for Zero Net Artificialization (ZAN) and land sobriety objectives. Adapted by ADDRN from the AUAT Toulouse version and deployable on any territory.
• Atlas ELLO Comprehensive territorial atlas documenting the characteristics of the Estuaire et Littoral Loire Océan (ELLO) territory — demographics, geography, economy, housing, and urban planning dynamics — used by planners and elected officials as a reference document.
• Plans Guides — Centre Bourgs Tailored urban revitalization planning guides produced for small municipalities under the national 'Petites Villes de Demain' and departmental 'Coeur de Bourg' / 'Coeur de Ville' programs. Used by municipal teams to structure center-town revitalization actions.

Named customers4 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

Feature2 records

Partnerships

Twelve partnerships are on record, tiered core and minor.

• Nantes UniversitécoreStrategic or Co-development Partner · 1 March 2023Nantes Université is a permanent member of ADDRN's board of directors since March 2023. The partnership enables academic-practical collaboration on territorial planning topics and provides research integration with the agency's activities.
• École des Beaux-Arts Nantes Saint-NazaireminorStrategic or Co-development PartnerCollaboration producing the 'Art et territoires' exhibition exploring the intersection of artistic practice and territorial cartography. The school's site in the maritime quarter of Saint-Nazaire shares thematic interests with ADDRN's work on territories and public spaces.
• Pôle Métropolitain Nantes Saint-NazairecoreStrategic or Co-development PartnerCo-financing partner for the CIFRE thesis on climate change and flexible planning of the Loire estuary. The partnership supports prospective research on estuarine adaptation to climate change.
• Université de Nantes (Laboratoire ETG-Geolittomer)coreStrategic or Co-development PartnerAcademic research partnership with the Institute of Geography and Regional Planning hosting the CIFRE thesis on estuary adaptation. Provides research methodology and institutional framework for doctoral research.
• Parc Naturel Régional de BrièrecoreStrategic or Co-development PartnerPartnership on the urban transition laboratory of the PNR, addressing zero artificialization objectives while respecting ecosystem functionalities. ADDRN and the park collaborate on pilot sites at Crossac and Herbignac.
• AUAT (Agence d'urbanisme de l'agglomération toulousaine)minorStrategic or Co-development PartnerLicensed use of the 'Play-ZAN' pedagogical animation tool, originally developed by AUAT for educating local authorities on Zero Artificialization Net objectives and land consumption reduction.
• ANCT (Agence Nationale de la Cohésion des Territoires)coreStrategic or Co-development PartnerADDRN participates in the local committee of Petites Villes de Demain, a national program coordinated by ANCT for revitalizing towns under 20,000 inhabitants. Participation under the national convention between ANCT and FNAU.
• OVHminorOthersWebsite hosting provider for ADDRN's web platforms including the main website and Lizmap cartography tools.
• BELL VISIONminorImplementation/ SI/ Consulting PartnerWebsite redevelopment agency responsible for redesigning and maintaining ADDRN's main website.
• CEREMAminorStrategic or Co-development PartnerCollaborates on hydraulic management studies for the Loire estuary, particularly regarding the future of water regulation structures in the context of sea level rise.
• Conservatoire du LittoralminorStrategic or Co-development PartnerPartners on the prospective reflection about the future of the Corsept dike protection structure, exploring scenarios for the transformation or 'transparency' of coastal defenses.
• Syndicat de Bassin Versant du Brivet (SBVB)minorStrategic or Co-development PartnerCollaboration on hydraulic management issues at Lavau-sur-Loire, examining the future of water regulation structures in the context of sea level rise.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Others

• Lincoln Institute of Land Policy: International policy research organization focused on land use, urbanization, and planning policy. Adjacent — not a competitor but a thematic peer in land-use research and policy dissemination that influences the field in which ADDRN operates.
• FNAU - Fédération nationale des agences d'urbanisme: National federation of French urban planning agencies, of which ADDRN is a member via the ANCT national convention. Not a competitor but the ecosystem coordinator and standards-setter for ADDRN's peer group.

Direct peers

• AUAT - Agence d'urbanisme de l'agglomération toulousaine: French urban planning agency serving the Toulouse metropolitan area, structurally identical to ADDRN under the same Association Loi 1901 framework. Direct peer — and existing partner via the Play-ZAN license relationship — making it the most comparable reference point.
• AGAM - Agence d'urbanisme de l'agglomération marseillaise: Urban planning agency serving the Marseille metropolitan area under the same Association Loi 1901 framework. Direct peer with comparable SCOT/PLUi advisory, observation, and prospective research mandate at metropolitan scale.
• APUR - Atelier Parisien d'Urbanisme: Paris-region urban planning agency operating under the same Association Loi 1901 status as ADDRN. Direct peer at much larger scale, with analogous observation, planning, and prospective-research functions for a metropolitan territory.
• AURAN - Agence d'urbanisme de la région nantaise: Urban planning agency covering the Nantes metropolitan area, sharing the same ELLO/Pôle Métropolitain orbit and overlapping partner ecosystem with ADDRN. Direct peer with comparable mandate, larger scale.
• AUDIAR - Agence d'urbanisme et de développement de Rennes: Urban planning agency serving the Rennes metropolitan area and broader Brittany region — geographically adjacent and structurally similar to ADDRN, with comparable activities in PLUi/SCOT support, observation, and ZAN-related advisory work.
• ADUGA - Agence de développement et d'urbanisme du Grand Amiens: Mid-sized French urban planning agency under Association Loi 1901, serving the Amiens metropolitan area. Comparable in scale and mandate to ADDRN, with similar participation in national small-town revitalization programs.
• Agence d'urbanisme de Brest Bretagne Occidentale: Urban planning agency for the Brest metropolitan area in western Brittany — close geographic neighbor with overlapping coastal/estuarine planning concerns and a structurally identical association-based operating model.

Broad incumbents

• Arup: Global engineering and urban planning consultancy with extensive master-planning and territorial advisory practices. Broad incumbent — competes for high-end strategic planning mandates but is not association-structured nor publicly-funded.

Market position

Weaknesses4 records

Competitive moat3 records

Key risks1 record

Key highlights6 records

Customer concentration

• Xx.com/addrn_stnazaire
• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/addrn

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Addrn