Zündel Cristea workshop

What Zündel Cristea workshop does

AZC (Atelier Zündel Cristea) is a privately-held French architecture firm founded in 2001 in Paris by Grégoire Zündel and Irina Cristea. Operating from a single headquarters at 9 rue de la Pierre Levée in the 11th arrondissement, the firm is structured as a partnership and employs approximately 9-50 architects and designers. In 2025, Alberto Gatti was admitted as a third partner after 14 years with the firm, formalizing internal succession. The firm delivers full-service architectural missions spanning concept design through construction supervision under French LOI MOP conventions.

The firm's portfolio comprises 56 completed and ongoing projects across multiple building typologies, with notable specialization in metro stations (10 projects, 18% of portfolio), healthcare and social facilities (12 projects, 21%), public equipment buildings (16%), office buildings (18%), and residential developments (20%). Technical differentiation rests on parametric design tools for complex geometries (particularly pneumatic structures), BIM methodologies, and bioclimatic sustainable design principles. Specialized expertise in pneumatic and temporary installations is housed in WAO, a subsidiary created in 2017 by Irina Cristea, David Joulin, and Grégoire Zündel, which produced installations including the Lily floating structure at Futuroscope, the Peace Pavilion in London (acquired by the Centre Pompidou collection), and the Pont Trampoline (Bouncing Bridge) prototype in Paris.

AZC generates revenue through professional architectural services won primarily via open and restricted architectural competitions (concours). Project construction values range from €250,000 to €50,000,000. Approximately 68% of projects are public commissions from government clients including transit authorities (Semtcar for Rennes Metro Line B), municipalities (Ville de Strasbourg, Ville de Riedisheim), and public institutions (CNFPT), while 32% come from private developers and enterprises such as ICADE, Bouygues, BNP Paribas, Gecina, Hines, and Louis Dreyfus Armateurs. Geographic footprint spans French regions (Île-de-France, Grand Est, Auvergne-Rhône-Alpes, Bourgogne-Franche-Comté, Nouvelle-Aquitaine, with emerging commissions in Hauts-de-Seine, Hauts-de-France, Loire-Atlantique, and Yvelines) plus international projects in London, Madrid, and Nyon (Switzerland), with entry into Hamburg (Germany) signaled for 2025.

Name

Zündel Cristea workshop

Legal name

Atelier Zündel Cristea

Website

https://azc.archi

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Paris-based Atelier Zündel Cristea (AZC) is an architecture firm founded in 2001 that provides full architectural services from concept through construction supervision for public infrastructure clients, private developers, and social-services operators across France and select international markets.

Ownership category

akta.pro rank

Headquarters

HQ city

Paris

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Services: AZC generates revenue through architectural design services including concept development, design, and construction supervision for public and private commissions. Revenue is project-based, typically won through architectural competitions. Projects range from small-scale renovations (250,000€) to large infrastructure projects (50,000,000€).

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

AZC (Atelier Zündel Cristea) is a Paris-based architecture firm founded in 2001 that delivers comprehensive architectural services from concept development through construction supervision. The firm specializes in public infrastructure (notably metro stations, healthcare facilities, educational institutions, and social housing), private real estate development (residential, offices, mixed-use), and innovative temporary pneumatic installations delivered through its subsidiary WAO. Approximately 80% of projects are full missions covering studies through construction supervision, with the remainder design-only studies.

Product overview

AZC (Atelier Zündel Cristea) is a French architecture firm founded in 2001, offering comprehensive architectural services from conception through construction oversight. The firm operates across multiple building typologies including metro stations, residential housing, office buildings, healthcare and social facilities, and sports complexes. AZC has developed specialized expertise in pneumatic and temporary structures through its subsidiary WAO (created 2017), producing iconic installations such as the Lily floating structure at Futuroscope, the Peace Pavilion in London, and the Bouncing Bridge prototype. The firm's portfolio spans 56 completed and ongoing projects, with approximately 68% public commissions and 32% private sector work.

Differentiator

Problem solved

Functional benefit

Products and services

• Full-Service Architectural Design
• Design-Only Studies
• Metro Station Design Specialization
• Building Rehabilitation and Transformation
• Healthcare and Social Facility Architecture
• Residential and Mixed-Use Architecture
• Pneumatic Structure Design (WAO Subsidiary)

Quantifiable outcome

• 56 projects completed or in progress across France and internationally
• +3 more outcomes

Named customers12 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered minor.

• Codigo ArquitecturaminorStrategic or Co-development PartnerAssociated architects for Lycée Français Madrid renovation and extension project (17,200 m², €9M).
• ARCHITRAM ArchitectesminorStrategic or Co-development PartnerAssociated architects for Metro Line B Rennes (4 stations) and Tour CIT renovation projects. Long-standing collaboration.
• M. SPITZminorStrategic or Co-development PartnerLead architect with AZC as associate architects for INET building in Strasbourg (5,760 m² administrative and training center).
• WAOminorStrategic or Co-development PartnerCompany created in 2017 by Irina Cristea (AZC partner) with David Joulin and Grégoire Zündel for inflatable structure projects including Lily at Futuroscope.

Scale indicators7 records

Recent moves4 records

Expansion highlights5 records

Direct peers

• Wilmotte & Associés: Major French architecture practice with parallel strengths in cultural, public infrastructure, and rehabilitation projects. Comparable in winning major French public competitions and serving institutional clients.
• Dominique Perrault Architecture: Paris-based architecture firm of comparable scale, similarly active in French public commissions, urban rehabilitation, and award-winning contemporary architecture. Direct overlap in competition-driven public-sector project types and project scale.
• TVK (Architectes): Paris-based architecture firm of similar size with strong overlap in French public-sector commissions, urban transit, and rehabilitation. Direct peer in scale, geography, and project typology.
• Atelier Jean Nouvel: Renowned Paris-based firm with similar competition-driven model and signature strength in cultural and public buildings. Comparable in scale of high-profile commissions and international recognition.
• Hamonic+Masson & Associés: Paris-based architecture studio with comparable size and focus on French public-sector projects including transit-oriented and urban rehabilitation work. Direct overlap on metro and public infrastructure commissions.
• TANK Architectes: French architecture firm with similar scale and activity in rehabilitation, social housing, and public-sector commissions. Closely comparable on project size range and client type.

Emerging players

• Studio Gang: Mid-sized architecture firm with similar emphasis on sustainability, contextual urbanism, and award-recognized public projects. Comparable positioning in competition-led growth and recognition-driven practice.
• BIG (Bjarke Ingels Group): International architecture firm of larger scale competing for the same high-profile public infrastructure and metro/transit commissions globally. Comparable in competition-led growth model and international expansion trajectory.

Broad incumbents

• Renzo Piano Building Workshop: Internationally recognized architecture practice with strong portfolio in public infrastructure and cultural buildings. Comparable in the high-prestige public-commission segment where AZC also competes.
• Foster + Partners: Global architecture incumbent with deep expertise in metro stations, public infrastructure, and large-scale urban regeneration. Sets the upper benchmark for transit-architecture commissions that AZC also targets.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/azc_architects/?hl=fr
• Xx.com/azcparis
• Facebookfacebook.com/azc.architectes

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Zündel Cristea workshop