MXC ARCHITECTES

What MXC ARCHITECTES does

MXC ARCHITECTES is a Nantes-based architectural practice founded in 2009 by Anne-Sophie Coué and Stéphane Mauget, both graduates of the École Nationale Supérieure d'Architecture de Nantes (ENSAN, 2002). Structured as a SARL with €20,000 of capital, the firm operates as a small professional services studio anchored by two co-founder architects and a permanent project assistant, supplemented by an extensive network of project-based collaborators. Its legal and operational base is at 25 rue du Calvaire, 44000 Nantes, and it is registered with the Ordre des Architectes (agency number S11802; principals S072736 and S076008).

The firm delivers full-scope architectural services across six product lines: Logement (social and intermediate housing, both new build and rehabilitation), Enseignement (universities, high schools, documentation centers), Équipement (multifunctional halls, sports facilities), Santé (medical imaging centers, EHPAD nursing homes, clinics), Tertiaire (offices, prototyping halls), and Concours (competition entries, retained and non-retained). Its technical specialization is sustainable architecture: bioclimatic design, biosourced materials (wood framing, hempcrete, rammed earth), and compliance with energy frameworks including E2C1, BBC Rénovation, THPE Effinergie+, RT 2012, RE 2020, and passive building standards. Documented outcomes include the BBC Rénovation label on the Richarderie and Ile du Pé rehabs, E3 C1 / Level 2 biosourced on Kenkiz, THPE Effinergie+ / RT 2012 -20% on House Park, and passive standard on the Affayre multipurpose hall.

MXC's revenue model is professional services on a project-by-project fee basis, with no publicly disclosed pricing. The go-to-market is event-driven: the firm wins work through invited architectural competitions and direct commissions, drawing roughly half of its revenue from public-sector and social-housing procurement (social housing operators ESH/HLM, municipalities, universities) and the balance from private developers (ADI, Groupe Launay) and healthcare operators (EUROPIMED, SOS Médecins). Distribution is regional, concentrated in Pays de la Loire, with limited cross-regional presence in Sarthe and Vendée. Customer relationships are sticky, with multiple repeat mandates from clients such as SILÈNE, La Nantaise d'Habitations, and OGEC Notre Dame, and the firm has begun extending its delivery model into design-build partnerships with general contractors (IRIS Groupe Léon Grosse, EGDC). No external funding, parent, or subsidiary exists; ownership and management remain concentrated with the two founding partners.

Name

MXC ARCHITECTES

Legal name

MXC ARCHITECTES

Website

https://mxcarchitectes.com

Company type

Private

Founded year

2009

Operating status

Operating

Headcount range

1–10 employees

Short description

MXC ARCHITECTES is a Nantes-based architecture firm founded in 2009 that delivers sustainable, bioclimatic design and thermal rehabilitation services across social housing, healthcare, education, and tertiary sectors for public and private clients in Pays de la Loire, France.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

Keywords

• Architectural design services
• Sustainable building design
• Social housing construction
• Building rehabilitation services
• Bioclimatic architecture

Headquarters

HQ city

Nantes

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, Infrastructure

Revenue model

1. Architectural Services: Professional architecture services delivered through project-based commissions. Revenue generated from design fees, project management, and complete architectural missions for construction and rehabilitation projects across housing, healthcare, education, and tertiary sectors.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

MXC ARCHITECTES provides professional architectural design and project delivery services for new construction and rehabilitation projects across social housing, educational, healthcare, public, and tertiary sectors. The firm specializes in sustainable, bioclimatic design using wood construction and bio-sourced materials, delivering full architectural missions including design, project management, and on-site supervision to public and private clients in the Pays de la Loire region.

Product overview

MXC ARCHITECTES is a Nantes-based architecture firm founded in 2009 by Anne-Sophie Coué and Stéphane Mauget. The agency offers comprehensive architectural services organized into six core project categories: Logement (social housing, including new construction and rehabilitation), Enseignement (educational facilities), Équipement (public facilities), Santé (healthcare buildings), Tertiaire (commercial/office), and Concours (architecture competitions). The firm specializes in sustainable design with emphasis on bioclimatic approaches, bio-sourced materials (particularly wood construction), and environmental certifications such as RT 2012, RE 2020, E+C- (Energy Positive), and BBC renovation standards. Projects range from small-scale housing to large public facilities, with a portfolio that includes over 900 dwellings across the Pays de la Loire region.

Differentiator

Problem solved

Functional benefit

Products and services

• Logement (Social Housing Architecture) Architectural design and project management services for social housing developments, covering collective housing, individual houses, duplex units, and rehabilitation of existing residences. Includes energy-efficient designs using wood framing and bio-sourced materials, from T2 to T5 typologies. Serves social housing operators and public/private developers.
• Enseignement (Educational Facility Architecture) Architectural design services for educational facilities including universities, high schools, libraries, documentation centers, and student life spaces. Projects range from new construction to rehabilitation with accessibility upgrades. Serves universities, regional education authorities, and private school networks.
• Équipement (Public Facility Architecture) Architectural design services for public facilities including multifunctional rooms, sports halls, and community spaces. Projects often incorporate passive building standards and renewable energy systems. Serves municipalities and public institutions.
• Santé (Healthcare Architecture) Architectural design services for healthcare facilities including medical imaging centers, radiology facilities, EHPAD (nursing homes), SOS medical offices, and rehabilitation centers. Projects include both new construction and restructuring of existing medical facilities. Serves public and private healthcare providers.
• Tertiaire (Commercial and Office Architecture) Architectural design services for commercial and office buildings including offices, prototyping halls, and business campus facilities. Projects involve design-build delivery methods and sustainable construction approaches. Serves private industrial employers and commercial developers.
• Concours (Architecture Competitions) Participation in architectural competitions for public and private clients. Competitions span housing, educational facilities, healthcare centers, and urban planning projects, with both retained and non-retained entries. Serves as the firm's primary business development channel.
• Réhabilitation (Building Rehabilitation) Rehabilitation and renovation services for existing buildings, including thermal insulation upgrades, facade work, balcony additions, accessibility improvements, and exterior space redesign. Projects include social housing rehabilitation meeting BBC (Low Energy Building) standards. Serves social housing operators and public institutions seeking energy retrofits.

Quantifiable outcome

• BBC Rénovation energy performance achieved on rehabilitation projects (Richarderie, Ile du Pé)
• +3 more outcomes

Named customers15 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Five partnerships are on record, tiered core and minor.

• JDS Architects (mandataire)coreStrategic or Co-development PartnerAssociation for Ecole des Beaux-Arts competition (2011) - JDS from Brussels as lead firm, MXC as associated architect for transformation project in Nantes Quartier de la Création
• Collectif GROUND (HUCA, DETROIT, BAP paysage, Marco Statopoulos)coreStrategic or Co-development PartnerCollaborative team for Ranzay urban planning ideas competition (2014) - collective vision for quarter renewal at 2030-2050 horizon
• EGDCminorStrategic or Co-development PartnerPartnership for Centre de radiologie Camille de Lellis competition (2023) - design-build competition with EGDC
• IRIS Groupe Léon GrosseminorStrategic or Co-development PartnerDesign-build partnership for Garotine rehabilitation competition (2023) - IRIS as general contractor with Léon Grosse
• SONADEVminorStrategic or Co-development PartnerDeveloper/aménageur for IMED medical imaging center project in Saint-Nazaire ZAC

Scale indicators3 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• Atelier Roland Schweitzer: Long-established French HQE/sustainable architecture firm specializing in social housing, rehabilitation, and public facilities — directly comparable on practice type, client base, and sustainability focus.
• Dietmar Feichtinger Architectes: French-headquartered architecture practice with parallel emphasis on sustainable design, public infrastructure, and architectural competitions, with comparable cultural-facility portfolio.
• Tectône: Grenoble-based architecture firm with similar size and strong sustainable/bioclimatic design profile, working across housing, education, and public facilities — a close operational and philosophical parallel to MXC.
• Encore Heureux: Paris-based architecture practice known for circular-economy, reuse, and sustainable social-housing projects, including rehabilitation. Comparable on values, project typology, and French public-sector engagement.
• Lemoal Lemoal Architectes: French architecture firm of similar scale focused on social housing, rehabilitation, and public projects — strong overlap on client base (ESH/OPH), typology, and competition participation.
• Antonini + Darmon: French architecture firm operating across social housing, public facilities, and cultural buildings, with comparable project scale and competition-driven practice model.
• ARCHI5: French architecture firm active in social housing, education, and urban planning, with a similar competition-led go-to-market and comparable project scales.
• a+ samueldelmas: Paris-based architecture practice with comparable portfolio in social housing, education, and public facilities, often through competition-winning schemes.

Broad incumbents

• Lacaton & Vassal: Pritzker-winning French architecture practice specializing in social housing rehabilitation and sustainable design. Larger and more globally recognized than MXC but operates in an overlapping niche that frames MXC's positioning.
• Baumschlager Eberle: International architecture group with European offices known for sustainable, energy-efficient design across housing and public projects — broader incumbent benchmark on sustainability positioning.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat2 records

Key risks6 records

Key highlights6 records

Customer concentration

• Xx.com/mxcarchitectes
• Instagraminstagram.com/p/CIFnLEaJX2xs0G_YMCizeerlCmmqfKlWUSmGck0/?igshid=1jvy5jdzivumy
• LinkedInlinkedin.com/company/mxc-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 MXC ARCHITECTES