NAS Architecture

What NAS Architecture does

NAS Architecture is a French architecture firm headquartered in Montpellier, founded in 2013 and co-managed by architects Hadrien Balalud de Saint Jean and Guillaume Giraud. The firm specializes in rehabilitation, heritage conservation, and contemporary architectural design within the Mediterranean climatic and cultural context, with a particular focus on bioclimatic approaches, material reuse, and contextual integration.

The firm serves predominantly French public-sector clients — municipalities (Ville de Montpellier, Ville de Toulouse), metropolitan authorities (Montpellier Méditerranée Métropole), public social housing operators (Promologis, FDI Habitat, ERILIA, CDC Habitat Social), and public institutions (CIRAD). Its portfolio spans schools, social housing, cultural and sporting facilities, healthcare facilities (Centre Hospitalier de Béziers), and laboratory infrastructure, with project budgets ranging from approximately €1M to €20M. The firm has accumulated 19+ awards across its portfolio, including the AJAP 2025 recognition, and frequently partners with peer firms such as PPA architectures and GTA architecture to deliver projects beyond its core 8-person team's capacity.

NAS Architecture's business model is based on professional architectural services fees earned on competitively tendered public-sector projects, typically structured as a percentage of construction cost under French public procurement rules. Repeat public-sector engagement and award-winning project credentials form the core of its go-to-market. Geographic expansion is occurring organically within the Occitanie region (Toulouse, Béziers, Nîmes, Sète), and the firm is beginning to extend into private developer work, most notably the Greencity/Promologis 205-unit housing program.

Name

NAS Architecture

Legal name

NAS Architecture

Website

https://nasarchitecture.com

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

NAS Architecture is an 8-person French architecture firm based in Montpellier, founded in 2013, specializing in Mediterranean rehabilitation, heritage conservation, and public-sector design. It serves municipalities, metropolitan authorities, and social housing operators across the Occitanie region.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Landscape Architectural Services (541320)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Architectural Reconfiguration & Structural Alterations (HSAPAEAB)

Keywords

• Architectural design services
• Heritage rehabilitation
• Public building design
• Urban planning services
• Mediterranean architecture

Headquarters

HQ city

Montpellier

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 Design Services: Professional architecture services including complete missions for new construction, rehabilitation of existing buildings, and urban development projects. Revenue is generated through fees for architectural design, project management, and construction supervision services on public and private sector projects across Southern France.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels5 records

Core offering

NAS Architecture provides professional architectural design services for new construction, rehabilitation of existing buildings, and urban development projects across the Occitanie region of Southern France. The firm specializes in educational facilities (schools, school groups, nursery schools, high school dormitories), cultural buildings (libraries, cultural centers, associative centers), sports facilities (swimming pools, sports complexes), collective housing, and urban renewal projects. Revenue is generated through fees for architectural design, project management, and construction supervision services delivered to public and private sector clients.

Product overview

NAS Architecture is an architecture firm (not a software company) offering architectural design services. Their portfolio consists of various project types including school facilities (primary schools, nursery schools, school groups), cultural buildings (libraries, cultural centers, associative centers), collective housing (social housing, residential complexes), sports facilities (swimming pools, sports complexes), and urban planning projects. The firm specializes in rehabilitation of heritage buildings alongside new construction, with a focus on projects in the Montpellier region and broader Occitanie area of southern France.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Comprehensive architectural design services encompassing new construction, rehabilitation of heritage and contemporary buildings, and urban planning projects across educational, cultural, residential, and sports sectors in southern France. Services include complete architectural missions for municipalities, public housing authorities, government bodies, and private developers for projects ranging from 1M€ to 20M€ in budget.

Quantifiable outcome

• Multiple prestigious award recognitions including AJAP 2025, Prix Architecture Occitanie 2023 (Public Prize), Equerre d'Argent nomination 2018, 40 Under 40 award 2018
• +2 more outcomes

Named customers11 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Seven partnerships are on record, tiered core and minor.

• PPA architecturescoreStrategic or Co-development Partner · 1 January 2021PPA architectures serves as mandatory architect on joint projects including the Bureau Grande Métairie Ilot A in Toulouse (19M€ project) and 205 Logements Lot A12-13 in Toulouse. NAS architecture participates as associate architect on these major projects.
• OS architectes (Atelier O-S)coreStrategic or Co-development PartnerOS architectes (Atelier O-S) served as mandatory architect with NAS architecture as associate architect on the Ecole Primaire Samuel Paty project in Béziers (9.8M€).
• V2S ArchitectescoreStrategic or Co-development PartnerV2S Architectes served as mandatory architect with NAS architecture as associate architect on the Piscine Intercommunale de Quissac project (3.1M€).
• JAQminorStrategic or Co-development PartnerJAQ is listed as a collaborator on the Campus CIRAD eco-site Lavalette project in Montpellier.
• GBDSJminorStrategic or Co-development PartnerGBDSJ is listed as a collaborator on the Tiers-lieu et Amenagement Urbain project in Toulouges.
• GTA architecturecoreStrategic or Co-development PartnerGTA architecture worked as co-architect with NAS architecture (as mandatory) on the Ecole Primaire Pierre et Colette Soulages project (7.6M€ rehabilitation).
• EupalinosminorImplementation/ SI/ Consulting PartnerEupalinos is listed as part of the project team for Ecole Primaire Pierre et Colette Soulages.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• TANK Architectes: Bordeaux-based architecture firm of comparable scale with strong public-sector portfolio and award recognition (including AJAP). Comparable in specialization around public facilities and rehabilitation in regional France.
• Atelier O-S (OS architectes): Co-architect on the €9.8M Ecole Primaire Samuel Paty project with NAS. Similar scale, public-sector focus, and design sensibility around educational and civic buildings.
• GTA architecture: Co-architect on the €7.6M Ecole Primaire Pierre et Colette Soulages rehabilitation with NAS as mandatory. Similar scale, public-sector rehabilitation focus, and Occitanie footprint.
• Atelier 9.81: French architecture firm with comparable scale, public-sector focus, and regional practice around Mediterranean France. Comparable typology of projects (schools, housing, civic).
• Lacaton & Vassal: French architecture firm globally renowned for rehabilitation-first methodology and social housing, including the 2021 Pritzker Prize. Direct philosophical peer to NAS's "work by subtraction" approach to heritage and existing buildings.
• PPA architectures: Mandataire architect on Toulouse bureau and 205 Logements projects where NAS is associate architect. Comparable in scale and public-sector / housing focus in Southern France.
• V2S Architectes: French architecture firm of comparable scale that has co-delivered the Piscine Intercommunale de Quissac with NAS as mandatory architect. Comparable in size, public-sector focus, and regional Occitanie footprint.

Broad incumbents

• Wilmotte & Associés: Large Paris-based architecture firm with broad public, residential, and cultural portfolio across France and internationally. Comparable in operating space but at significantly larger scale and broader project typology.
• Dominique Perrault Architecture: Major French architecture firm with strong public-sector and cultural building portfolio, including rehabilitation projects. Comparable in operating space but operates at much larger scale and international scope.
• Architecture-Studio: Large established French architecture firm with significant public-sector and cultural building portfolio across Europe and the Middle East. Operating in a similar space but at much greater scale and international reach than NAS.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Instagraminstagram.com/nas_architecture/?hl=fr
• LinkedInlinkedin.com/company/nas-architecture

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 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 NAS Architecture