What Bellastock does

Bellastock is a French cooperative (SCIC — Société Coopérative d'Intérêt Collectif) founded in 2006 and operating across Paris (headquarters, 13 rue Santeuil, 75005) and Marseille (24 Avenue du Prado, 13006) with approximately 20 employees. The organization specializes in circular economy methodologies applied to the construction sector, with pioneering expertise in France on the reuse (réemploi) of construction materials. Its clients include local authorities, municipalities, public institutions (e.g., Ville de Paris, Plaine Commune, Ville de Malakoff, Nantes Métropole, multiple Île-de-France communes), and private developers (notably ICADE, Bouygues Immobilier, EDF, SUEZ, Novaxia/Novaédia, Groupe Valophis, Château de Versailles).

The cooperative's service portfolio is structured around four pillars: Architecture & Réemploi (material reuse expertise), Formation (pedagogical training for professionals, students, and youth audiences), Lieux / Urbanisme de Transition (analysis, occupation, and prefiguration of transitional urban spaces), and Études (research and expertise including resource diagnostics and circular economy methodologies). Technical capabilities are anchored in proprietary assets including the Diagnostic Ressource methodology (which verifies the performance of second-life products and characterizes demolition-site materials for reuse integration), the REPAR research program (2012-2018, ADEME- and CSTB-funded, producing a 550-page technical guide and 14 validated data sheets accepted by control bureaus), and the Actlab reuse laboratory at the Éco-quartier Fluvial site in L'Île-Saint-Denis. The Opalis platform provides a digital resource directory for construction material reuse.

Revenue is generated through three streams: project-based consulting and resource diagnostics for public and private clients, publicly funded research programs (ADEME, Interreg North-West Europe, Europe Creative Culture, DRAC Île-de-France, Caisse des Dépôts), and educational/training services including masterclasses and workshops. The cooperative is anchored by a community-led go-to-market approach built around its annual experimental architecture festival (founded as its founding manifesto event, now in its 20th year) that has engaged over 10,000 students and young professionals. Bellastock has expanded internationally through the Artecitya cooperation program, with partner festivals and educational programs across at least 12 countries in Europe, the Americas, and Asia. The organization has no parent company, no venture or private equity ownership, and operates as an independent member-worker-governed cooperative.

Name

Bellastock

Legal name

Bellastock

Website

https://bellastock.com

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

11–50 employees

Short description

Bellastock is a French cooperative (SCIC) of approximately 20 employees that delivers circular economy consulting, material reuse expertise, and architectural training to municipalities, public institutions, and private developers in France and across 12+ international partner festivals.

Ownership category

akta.pro rank

Product category

Sustainable Architecture & Circular Economy Consulting

NAICS

Architectural Services (541310), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711), Services-Management Services (8741)

akta.pro primary industry

Urban Renewal, Brownfield Redevelopment & Land Reuse (BPAIANAI)

akta.pro secondary industry

Community Engagement & Participatory Planning (BPAHAKAO)

Keywords

• Circular economy construction
• Material reuse consulting
• Sustainable architecture services
• Construction waste management
• Circular urban planning

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Research Programs and Grants: Bellastock conducts research programs funded by public institutions such as ADEME, European programs (Interreg North-West Europe), and government bodies. Programs like REPAR and FCRBE receive dedicated funding for developing reuse methodologies and technical standards.
2. Consulting and Expertise Services: The cooperative provides consulting services to public and private sector clients including resource diagnostics, circular economy methodology development, project management, and technical expertise for reuse in construction projects.
3. Educational and Training Services: Bellastock organizes pedagogical interventions for professionals, students, and youth audiences, including masterclasses, workshops, and hands-on training sessions on reuse and sustainable development of territories.

Go-to-market motion2 records

Distribution channels3 records

Marketing channels4 records

Core offering

Bellastock is a cooperative that provides consulting, research, and training services centered on the reuse (réemploi) of construction materials and the implementation of circular economy methodologies in architecture, construction, and urban planning. It serves public authorities, real estate developers, and educational institutions through four core service pillars: expertise on material reuse, pedagogical training, transition urbanism, and applied research/studies. Supporting offerings include a hands-on reuse laboratory (Actlab), structured research programs (REPAR, Métabolisme Urbain, FCRBE), and an annual experimental architecture festival.

Product overview

Bellastock is a cooperative offering an integrated suite of services centered on circular economy and material reuse in architecture and construction. Its core portfolio consists of four pillars: Architecture & Réemploi (material reuse expertise), Formation (pedagogical training), Lieux/Urbanisme de Transition (transition urbanism), and Études (research & expertise). Supporting these are specialized offerings including Actlab (reuse laboratory), the REPAR research program, the Métabolisme Urbain methodology, the Opalis digital resource platform, and the annual Festival Bellastock architecture event. The Diagnostic Ressource service provides the technical framework for identifying and qualifying reusable materials.

Differentiator

Problem solved

Functional benefit

Brands

• Actlab: Laboratoire manifeste du réemploi - Bellastock's reuse demonstration laboratory established on the Éco-quartier Fluvial construction site at L'Île-Saint-Denis, used for prototyping, prefabrication, and training.
• REPAR
• Festival Bellastock
• Métabolisme Urbain

Products and services

• Architecture & Réemploi (Core Expertise) Service providing pioneering expertise in France on the reuse (réemploi) of construction materials, helping public and private clients reduce construction waste and develop sustainable architectural culture through resource diagnosis, methodology development, and project accompaniment.
• Formation (Training & Pedagogy) Pedagogical training services for professionals, students, and youth on sustainable urban production practices, including workshops, masterclasses, microfolie masterclasses, and field experiments on material reuse.
• Lieux / Urbanisme de Transition (Transitional Urbanism) Transition urbanism services that analyze, occupy, and prefigure transitional spaces, guiding territories toward solidarity, social mixity, and ecological transition through participatory urban development.
• Études (Research & Expertise) Research and expertise services providing concrete and equitable answers for sustainable city-making, including resource diagnosis (Diagnostic Ressource) and circular economy methodology development for reuse in construction and urban planning.
• Diagnostic Ressource Resource diagnosis methodology that evolves from waste diagnostics to verify the performance of second-life products and their correlation with possible reuse domains, characterizing materials from demolition sites, identifying reuse opportunities, and preparing administrative and insurance frameworks for integrating reuse into target construction projects.
• Actlab Manifesto laboratory for material reuse established at the Éco-quartier Fluvial construction site in L'Île-Saint-Denis, serving as a hands-on experimentation space for prototyping, prefabrication, and training in reuse techniques.
• REPAR Program Research and expertise program on material reuse in construction, producing technical references and validated processes for reuse, including a 550-page methodological guide with technical catalogs of validated data sheets for various construction materials and components.
• Métabolisme Urbain de Plaine Commune Circular economy approach applied to the construction sector, implementing reuse, sorting, and recycling of construction materials across 30 pilot sites through a 6-organization consortium led by Bellastock, with mobilization of endogenous material and human resources, including social-economy insertion channels.

Quantifiable outcome

• Developed technical referentials and 14 validated technical data sheets for reuse components, accepted by control bureaus
• +3 more outcomes

Named customers9 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

25 partnerships are on record, tiered core, major and minor.

• Plateau UrbaincoreStrategic or Co-development PartnerNew partnership between Bellastock and Plateau Urbain in favor of circular urbanism, focused on reusing places and materials in urban development projects.
• Plaine CommunecoreStrategic or Co-development PartnerBellastock serves as lead partner (mandataire) in a 6-organization consortium for the Métabolisme Urbain project, a 3-year circular economy initiative applied to the BTP sector targeting 30 pilot sites.
• RecoveringmajorStrategic or Co-development PartnerPartner in the Métabolisme Urbain consortium responsible for setting up sorting, storage, and resource recovery platforms for construction sites.
• Albert & Co.majorStrategic or Co-development PartnerPartner in Métabolisme Urbain project focusing on inter-site material reuse experimentation from 30 pilot sites.
• Le PharemajorStrategic or Co-development PartnerPartner providing expertise and social economy and inclusion (ESS) guidance for local reuse/recycling/reclamation material channels.
• Encore HeureuxmajorStrategic or Co-development PartnerPartner developing a digital platform to make material deposits visible and account for externalities of the circular economy approach.
• CSTB (Centre Scientifique et Technique du Bâtiment)coreStrategic or Co-development PartnerKey technical partner in REPAR research programs, providing socio-economic modeling and technical validation of reuse solutions. Co-developer of technical referentials for concrete reuse.
• Auxilia ConseilmajorStrategic or Co-development PartnerPartner for building local actor competency development through training sessions, conferences, and site visits, and promoting reuse culture among territory stakeholders.
• HalagemajorStrategic or Co-development PartnerPartner for IAE (Insertion through Economic Activity) and establishment of demonstrator construction sites in Métabolisme Urbain project.
• 6bminorStrategic or Co-development PartnerPartner in Microfolie Masterclass project at the future Ecoquartier Fluvial site.
• Ya+kminorStrategic or Co-development PartnerDesign collective co-developer of the Never Chill Out Van (NCOV) prototype, a mobile festive event space built from reclaimed materials.
• Atelier ZmajorImplementation/ SI/ Consulting PartnerCo-traitant (subcontractor) for the Ferme Wangari Maathai project in Malakoff, providing architectural design support.
• Les Grands MoyensmajorImplementation/ SI/ Consulting PartnerConstruction company partner for Ferme Wangari Maathai project, specializing in sustainable construction techniques.
• Depuis 1920majorImplementation/ SI/ Consulting PartnerCompany responsible for prototyping and assembling reclaimed joinery elements in the Résilience project for Novaedia.
• AlterbâtirmajorImplementation/ SI/ Consulting PartnerConstruction company partner for Ferme Wangari Maathai project.
• Frédéric Denise — Archipel ZéromajorImplementation/ SI/ Consulting PartnerArchitecture agency for master planning reuse lots in the Résilience project, working with Bellastock on reclaimed material integration.
• CREIDDminorStrategic or Co-development PartnerResearch partner contributing expertise to REPAR #2 technical development and validation.
• LERMminorStrategic or Co-development PartnerTesting laboratory partner for material characterization in REPAR research program.
• Grand Paris SudminorStrategic or Co-development PartnerMetropolitan authority hosting Cime City festival 2018 and supporting experimental architecture initiatives.
• Sequano AménagementmajorStrategic or Co-development PartnerUrban development company managing ZAC projects along the Ourcq canal where Superstock festival took place.
• Est-EnsemblemajorStrategic or Co-development PartnerAgglomeration community partner in charge of urban development projects including the Plaine de l'Ourcq transformation.
• Grand Paris AménagementmajorStrategic or Co-development PartnerState-owned urban development company involved in Greater Paris transformation projects.
• EODDcoreStrategic or Co-development PartnerMandataire (lead partner) for L'Autre Soie project, with Bellastock as part of the environmental quality and reuse assistance group.
• Scop les 2 RivesmajorStrategic or Co-development PartnerWorker cooperative providing workshop animation and awareness sessions for L'Autre Soie project.
• KhiasmaminorStrategic or Co-development PartnerAssociation of artistic practices collaborating with Bellastock on Cabane Fleury project for creating community spaces.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• SUEZ: Global environmental services and water/waste management major listed as a Bellastock client. Large incumbent with overlapping interest in construction circularity but vastly broader portfolio.
• ICADE: Major French real estate developer and Bellastock client (Pulse project). Represents the large incumbent developer segment that increasingly demands reuse expertise at scale.

Direct peers

• Rotor: Belgian architecture cooperative focused on reuse of building materials, with salvage operations, research, and a Brussels-based reuse center. Closest international peer—same model, same specialty, similar cooperative culture.
• Hesus: French circular economy platform for construction materials reuse, providing sorting, logistics, and digital marketplace for salvaged materials. Direct competitor in the BTP (construction) reuse services market.
• Backacia: French online marketplace for reclaimed and second-hand construction materials. Direct peer in the construction reuse ecosystem with overlapping public and private clients.
• Cycle Up: French digital platform facilitating reuse of construction materials between demolition and renovation sites. Comparable as a methodology-and-platform hybrid serving the same circular construction value chain.
• Encore Heureux: Paris-based architecture studio specialized in reuse and circular construction, currently a Bellastock partner on the digital material reuse platform within Métabolisme Urbain. Operates in the same niche with overlapping public/private clients.

Others

• CSTB (Centre Scientifique et Technique du Bâtiment): French scientific and technical center for building, currently a core technical partner validating Bellastock's REPAR technical referentials. Acts as enabler/validator rather than direct competitor.

Regional players

• Salvo: UK-based information service for reclaimed building materials and architectural salvage, comparable niche but operating in a different geography.

Emerging players

• Plateau Urbain: French cooperative focused on temporary urbanism and circular use of vacant spaces, now partnering with Bellastock on (Co)opération réemploi. Adjacent specialty (spaces vs materials) but converging under circular urbanism thesis.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCbbyvYBY0OBHbVT8QsGETFQ
• Facebookfacebook.com/Bellastock
• LinkedInlinkedin.com/company/bellastock
• Instagraminstagram.com/bellastock/?hl=fr

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 Bellastock