What Ateliers 2/3/4/ does

Ateliers 2/3/4/ is a French architecture, urban planning, and landscape design agency headquartered in Paris, organized as a private partnership of nine active partners plus three honorary partners (Olivier Arene, Christine Edeikins, and François Roux), with approximately 120 professionals in total (nine partners, twelve project directors, and around 100 collaborators). The firm was formed in 2006 through the merger of three predecessor agencies—Arene & Edeikins, Bolze & Rodriguez-Pagès, and Mas & Roux—and operates from offices in Paris (headquarters), Montpellier, Shanghai, and Remire-Montjoly in French Guiana. Its service portfolio spans architecture, urbanism, landscape, mobility, infrastructure and industry, and interior design, organized around a stated design philosophy of "intériorité ouverte" (open interiority) that derives building form from interior logic rather than outward expression, combined with deep expertise in biosourced and wood construction.

The firm delivers projects using collaborative Building Information Modeling (BIM), an area in which it was an early mover in France: it designed the first French building over 30,000 m² in BIM (the Société Générale Basalte trading hall at La Défense) in 2007, and now uses in-house BIM Managers and parametric objects for facade and volumetric variant exploration across the project lifecycle. A dedicated research pole, CYCL'RECYCL', addresses circular economy questions in architecture, including upstream waste diagnostics for renovation versus deconstruction decisions. Recent flagship work includes the Paris 2024 Olympic Aquatic Centre (with VenhoevenCS and Bouygues), multiple Grand Paris Express stations, the KOSMO headquarters for Parfums Christian Dior, the Everblue building for CFM Indosuez in Monaco, the WHO Academy campus in Lyon, and the Airbus A380 maintenance base at Roissy-CDG.

Revenue is generated on a project-fee basis through architectural competition wins, direct private commissions, and public procurement contracts, with no publicly disclosed pricing. The client base spans French public authorities (Métropole du Grand Paris, Société des grands projets, ministries, municipalities), financial institutions (Société Générale, BNP Paribas, CFM Indosuez, Natixis, Sogeprom), luxury and consumer enterprises (Parfums Christian Dior, Figaro Group, Groupe Le Duff), industrial firms (Airbus, EDF, Expleo), and educational and international organizations (ESCP Business School, WHO Academy, HITSZ University in Shenzhen). Go-to-market is sales-led via open and invited competitions and direct commissions, with consortium structures used for large-scale public projects. The firm also operates ATELIER MOEX, a subsidiary co-created with Camille Bonfils, dedicated to construction execution management.

Name

Ateliers 2/3/4/

Legal name

Ateliers 2/3/4/

Website

https://a234.fr

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

51–100 employees

Short description

Ateliers 2/3/4/ is a French architecture, urban planning, and landscape design partnership of nine partners and approximately 120 professionals, serving French public authorities, financial institutions, and enterprises through competition-led design services delivered via collaborative BIM methodology.

Ownership category

akta.pro rank

Product category

Architectural and Urban Design Services

NAICS

Architectural Services (54131), Interior Design Services (541410), Landscape Architectural Services (541320)

akta.pro primary industry

Hospitality & Entertainment Venue Construction (IMAFACAC)

Keywords

• Architectural design services
• Urban planning services
• Landscape architecture
• Building information modeling
• Sustainable construction

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural and Engineering Design Services: Ateliers 2/3/4/ generates revenue through fees for architectural, urban planning, and landscape design services. Projects span new construction, rehabilitation, and urban planning at all scales. Revenue is project-based, derived from competition wins, direct commissions, and public procurement contracts.

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Ateliers 2/3/4/ is a French architecture, urban planning, and landscape design agency that delivers integrated design services spanning new construction, rehabilitation, and urban development at all scales — from territorial master plans to interior architecture. The firm operates a multidisciplinary practice (architecture, urbanism, landscape, interior design, and infrastructure) and delivers all projects in digital modeling, with the majority using a collaborative BIM (Building Information Modeling) methodology. Services are won through public tenders/competitions and direct private commissions, with international delivery supported by offices in Paris, Montpellier, Guyane, and Shanghai.

Product overview

Ateliers 2/3/4/ is a French architecture, urban planning, and landscape design agency offering a comprehensive portfolio of design services. The core offerings include Architecture Services (building design, rehabilitation, restructuring), Urban Planning Services (master plans, territorial development), Landscape Design Services (public spaces, parks), Interior Architecture Services, and specialized sub-products such as ATELIER MOEX for construction execution management and CYCL'RECYCL' for sustainable architecture research. The firm also provides BIM (Building Information Modeling) services using collaborative digital methodologies. The agency operates across France, French overseas territories (Guyane, Guadeloupe), and internationally in China, Lebanon, Côte d'Ivoire, and Morocco.

Differentiator

Problem solved

Functional benefit

Brands

• ATELIER MOEX: Execution architecture workshop dedicated to construction execution management, created by Ateliers 2/3/4/ and Camille Bonfils.

Products and services

• Architecture Services
• Urban Planning Services
• Landscape Design Services
• Interior Architecture and Design
• ATELIER MOEX Execution Management Services
• CYCL'RECYCL' Circular-Economy Research Pole
• Collaborative BIM Services

Quantifiable outcome

• Olympic Aquatic Centre selected among 6 most beautiful sports facilities in the world (Prix Versailles), won Structural Awards 2024, Grand Prix BIM d'Or, Prix National de la Construction Bois, Grand Prix de la Réalisation Grand Paris
• +3 more outcomes

Named customers16 records

Segments5 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

13 partnerships are on record, tiered notable, core, major and flagship.

• Tristan Brisard ArchitectesnotableStrategic or Co-development Partner · 1 January 2025Ateliers 2/3/4/ and Tristan Brisard Architectes won the competition for the restructuring and expansion of the Francis-Le Basser Stadium in Laval (December 2025).
• Samy RionotableStrategic or Co-development Partner · 1 January 2025Ateliers 2/3/4/ collaborated with designer Samy Rio to unveil the interior design of the WHO Academy (Académie) campus in Lyon in September 2025.
• CA ImmobiliercoreImplementation/ SI/ Consulting Partner · 1 January 2025CA Immobilier acted as MO-D (délégué) for the Everblue project for CFM Indosuez in Monaco.
• The A Group – Jérôme Hein ArchitectecoreStrategic or Co-development Partner · 1 January 2023Ateliers 2/3/4/ and The A Group – Jérôme Hein Architecte co-designed the Everblue rehabilitation-extension project for CFM Indosuez in Monaco. The A Group served as co-architect alongside Ateliers 2/3/4/ and Ateliers 2/3/4/ acted as landscape architect.
• RFR (BET Structure et façade)majorImplementation/ SI/ Consulting Partner · 1 January 2023RFR acted as structure and façade engineering consultant (BET) on the Everblue project for CFM Indosuez in Monaco.
• ARTELIAmajorImplementation/ SI/ Consulting Partner · 1 January 2023ARTELIA served as multi-disciplinary engineering consultant (fluides / VRD / ascenseurs / acoustique / BD2M / OPC) on the Everblue project for CFM Indosuez in Monaco.
• Demathieu Bard Bâtiment Ile-de-FrancemajorImplementation/ SI/ Consulting Partner · 1 January 2023Ateliers 2/3/4/ participated as architect and landscape designer within a consortium led by Demathieu Bard Bâtiment Ile-de-France for the competitive market to design, build, operate and maintain the Pôle National d'Education Inclusive (PNEI) in Saint-Germain-en-Laye.
• VenhoevenCS (co-architect)flagshipStrategic or Co-development Partner · 1 January 2020VenhoevenCS acted as co-architect on the Olympic Aquatic Centre (Centre Aquatique Olympique), the flagship project of Paris 2024. The project won multiple international awards and was delivered under a consortium with Bouygues Bâtiment Ile-de-France as mandataire.
• Sophie CallenotableStrategic or Co-development Partner · 1 January 2018Sophie Calle and Ateliers 2/3/4/ formed the artist-architect tandem selected by the Société des grands projets for the Gare Massy Opéra as part of the 'Art du Grand Paris' program.
• SnøhettanotableStrategic or Co-development Partner · 1 January 2018Ateliers 2/3/4/ was part of a consortium with Snøhetta, Baumschlager Eberle Architekten, and Chaix et Morel et Associés for the Lumières Pleyel project at Saint-Denis, led by Sogelym Dixence.
• SOM (Skidmore, Owings & Merrill)notableStrategic or Co-development Partner · 1 January 2018Ateliers 2/3/4/ worked with SOM and AREP on the Inventons la Métropole project SCAENA at Charenton, alongside Urbanera and Grand Réservoir.
• Liguo Li / IFADURcoreStrategic or Co-development Partner · 1 January 2017Liguo Li, through IFADUR, directed the creation of the Ateliers 2/3/4/ Shanghai office in 2017, supporting the firm's international expansion in China and managing Chinese project delivery.
• ATELIER MOEX (Camille Bonfils)coreStrategic or Co-development PartnerATELIER MOEX is a subsidiary structure created by Ateliers 2/3/4/ and Camille Bonfils dedicated to execution management services (OPC, direction d'exécution des travaux, visas, technical and architectural synthesis). It supports Ateliers 2/3/4/ on construction sites for both rehabilitation and new construction projects.

Scale indicators3 records

Recent moves10 records

Expansion highlights6 records

Direct peers

• Christian de Portzamparc: Paris-based architect with a parallel profile of large-scale cultural, residential, and urban projects, including Pritzker Prize recognition. Comparable in scale, in pursuit of headline cultural and urban commissions, and in the Paris institutional market.
• Valode & Pistre: French architecture firm with comparable scale and typology (cultural venues, headquarters, sustainable urban projects). Both firms share a strong institutional client base and frequently compete in the same competitions for major public projects in France.
• Architecture-Studio: Large Paris-based architecture firm with comparable international presence (offices in multiple continents) and a similarly broad typology (cultural, educational, urban, transport). Both firms compete for major French public-sector competitions and overseas masterplans.
• Renzo Piano Building Workshop: Internationally renowned architecture practice with parallel cultural and institutional profile (museums, headquarters, education) and shared involvement in high-prestige urban projects. Both firms target similar high-end public commissions in France and abroad.
• Snøhetta: Multidisciplinary architecture and landscape firm that partnered with Ateliers 2/3/4/ on the Lumiéres Pleyel project; directly comparable in transdisciplinary scope, sustainability focus, and pursuit of large cultural and institutional commissions across Europe and Asia.
• VenhoevenCS: Amsterdam-based architecture and urbanism firm that served as co-architect with Ateliers 2/3/4/ on the Paris 2024 Olympic Aquatic Centre. Directly comparable in typology (sports, mobility, sustainability-driven public buildings) and partnership dynamics on flagship European projects.
• Wilmotte & Associés: Paris-based architecture studio with parallel practice in cultural, hospitality, residential, and heritage rehabilitation projects. Both firms compete in the same segment of high-end French and international commissions and have similar relationship-driven developer and institutional client rosters.
• Ateliers Jean Nouvel: Paris-based architecture firm with a comparable partner-led model, international project footprint (cultural venues, museums, towers), and overlap with Ateliers 2/3/4/ in French institutional and cultural commissions. Both firms blend architecture with interior and urban design at similar scales.

Broad incumbents

• BIG (Bjarke Ingels Group): International architecture and design firm with broad typology and a strong sustainability narrative. Competes for the same high-visibility cultural, educational, and urban commissions that Ateliers 2/3/4/ targets, but at substantially larger scale.
• Foster + Partners: Global architecture practice with overlapping cultural, transportation, and sustainability-oriented portfolio. A broader incumbent with significantly larger headcount and global reach; competes with Ateliers 2/3/4/ on major international tenders.

Market position

Weaknesses4 records

Competitive moat5 records

Key highlights7 records

Customer concentration

• YouTubevimeo.com/ateliers234
• LinkedInlinkedin.com/company/2-3-4-
• Instagraminstagram.com/ateliers234
• Xx.com/234architecture

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Ateliers 2/3/4/