Stone Architecture

What Stone Architecture does

Stone Architecture, operating legally as Pierron Architecture, is a private architecture practice founded in 1983 by Valentin and Daniel Pierron and headquartered at 14 rue Bénit, Nancy, France. The firm provides end-to-end architectural design, project management, and construction supervision services across six core service lines: healthcare facilities (EHPADs, hospitals, cardiology poles, medical centers), educational institutions (schools, high schools, universities, CROUS facilities), housing (senior residences, social and inclusive housing), commercial and office buildings, cultural and sports venues (congress centers, Zénith, swimming pools), and restoration/renovation of existing structures. Its portfolio includes landmark regional public-sector projects such as the Centre des Congrès de Nancy (€59M, 19,000 m²) and the Pôle de Cardiologie at CHRU Nancy-Brabois (€76.4M, 36,320 m²).

The firm operates a B2G go-to-market, with all ten named engagements drawn from French public-sector or quasi-public institutions including Région Grand Est, Communauté Urbaine du Grand Nancy, CHRU Nancy-Brabois, CIAS Meuse Grand Sud, GHEMM, and CROUS Lorraine. Revenue derives from professional service fees on individual project commissions, with pricing determined per-project based on scope, surface area, and complexity; no public pricing tiers or framework agreements are disclosed. Distribution is direct, through public tenders, architectural competitions, and negotiated contracts, supported by repeat-customer relationships within the Lorraine/Grand Est region.

The underlying "technology" of the firm is its 40+ years of accumulated project portfolio, regional brand, and a stable ecosystem of repeat-collaborator engineering partners (BET OTE, EGIS Bâtiments, INGEROP, ARTÉLIA, OTELIO, ECOHAL, SOLOREM, Saunier et Associés, ADAM, LOUVET) that provide structural, MEP, environmental, and kitchen/catering engineering across healthcare, education, cultural, and housing projects. There is no disclosed use of AI/ML, proprietary software platform, or technology product; the firm is a conventional professional services practice. Ownership is private and concentrated in the two founding partners, with no disclosed external investors, funding rounds, subsidiaries, or M&A activity.

Name

Stone Architecture

Legal name

PIERRON ARCHITECTURE

Website

https://pierron-archi.com

Company type

Private

Founded year

1983

Operating status

Operating

Headcount range

1–10 employees

Short description

Stone Architecture (Pierron Architecture) is a Nancy, France-based private architecture practice founded in 1983 by Valentin and Daniel Pierron, delivering design, project management, and construction supervision for public-sector healthcare, educational, cultural, and housing projects across the Grand Est/Lorraine region.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Architectural Services (54131)

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industries

Hospitality & Entertainment Venue Construction (IMAFACAC), Capital Projects, Renovation & Minor Construction (EDALALAF)

Keywords

• Architectural design services
• Public infrastructure design
• Healthcare facility architecture
• Educational building design
• Renovation and restoration services

Headquarters

HQ city

Nancy

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Design Services: Project-based architectural design and engineering services for public and private sector clients. Revenue derived from design fees, project management, and construction supervision services on completed projects.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

Stone Architecture (PIERRON ARCHITECTURE) is an architectural design practice providing end-to-end services — from concept design through construction supervision — for healthcare facilities (EHPADs, hospitals, medical centers), educational buildings (schools, universities, gymnasiums), housing (senior residences, social and inclusive housing), commercial/office buildings, cultural and sports venues (congress centers, Zénith venues, swimming pools), and the renovation/restructuring of existing buildings. The firm delivers project management, engineering coordination, and regulatory compliance advisory on public and private construction projects primarily across the Grand Est region of France.

Product overview

Stone Architecture (PIERRON ARCHITECTURE) is an architectural firm founded in 1983 by Valentin and Daniel Pierron, based in Nancy, France. The company offers comprehensive architectural services across multiple building typologies: Healthcare Architecture Services (EHPADs, hospitals, medical centers, specialized care units), Educational Architecture Services (schools, universities, gymnasiums), Housing Architecture Services (senior residences, social housing, inclusive housing), Commercial & Office Architecture Services, Cultural & Sports Facilities Architecture (congress centers, Zénith venues, swimming pools), and Restoration & Renovation Services. The firm operates as a single unified architecture practice rather than a platform-based product architecture, providing end-to-end architectural design, project management, and construction supervision services for both public and private clients across the Grand Est region of France.

Differentiator

Problem solved

Functional benefit

Products and services

• Healthcare Architecture Services Design and construction of healthcare facilities including EHPADs (elderly care homes), hospitals, medical centers, and specialized care units such as Alzheimer's units and rehabilitation centers. Services cover full architectural design, project management, and construction supervision for healthcare clients.
• Educational Architecture Services Design and construction of educational facilities including primary schools, colleges, high schools, universities, gymnasiums, and school cafeterias/restaurants. Includes new build and renovation/restructuring work for public educational clients.
• Housing Architecture Services Design and construction of residential projects including senior residences, social housing, apartment buildings, and inclusive housing designed for people with disabilities. Focus on accessibility, independence, safety, and social integration.
• Commercial and Office Architecture Services Design and construction of commercial buildings, office spaces, and business centers for private sector clients. Emphasis on modernization, energy efficiency, and space optimization.
• Cultural and Sports Facilities Architecture Design and construction of cultural venues, sports facilities, congress centers, municipal swimming pools, and performance spaces such as the Zénith de Nancy. Includes extension and renovation of large-capacity public venues.
• Restoration and Renovation Services

Named customers10 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Ten partnerships are on record, tiered core and minor.

• BET OTE (OTE Ingénierie)coreImplementation/ SI/ Consulting PartnerEngineering partner providing structural, MEP, and environmental engineering services across multiple projects including EHPAD Cornimont, Lycée D. Labroise, and Collège Joliot Curie restructuring projects.
• BET EGIS BâtimentscoreImplementation/ SI/ Consulting PartnerMulti-disciplinary engineering firm providing structural, MEP, and sustainable design services on healthcare and public infrastructure projects including EHPAD facilities and the Centre Social project.
• BET INGEROPcoreImplementation/ SI/ Consulting PartnerEngineering consultancy providing technical engineering services on large-scale projects including Centre Hospitalier Intercommunal de Luxeuil and Lycée D. Labroise restructuring.
• BET ARTÉLIAminorImplementation/ SI/ Consulting PartnerEngineering consultancy providing structural and civil engineering services on Foyer d'hébergement et ESAT à Neufchâteau project.
• BET OTELIOminorImplementation/ SI/ Consulting PartnerEnvironmental and sustainable development engineering partner working on residence seniors and healthcare projects.
• BET ÉCOHALminorImplementation/ SI/ Consulting PartnerCatering and kitchen engineering specialist for restaurant and food service facility projects including restaurant inter-entreprises and EHPAD facilities.
• SOLOREMminorImplementation/ SI/ Consulting PartnerPublic development company acting as assistant maîtrise d'ouvrage for community projects including Centre Social and Centre des Congrès de Nancy.
• BET Saunier et AssociésminorImplementation/ SI/ Consulting PartnerEngineering partner for sports facility projects including Piscine de Lure rehabilitation and extension.
• BET ADAMminorImplementation/ SI/ Consulting PartnerEngineering partner for IME d'Épinal project providing structural and MEP services.
• BET LOUVETminorImplementation/ SI/ Consulting PartnerEngineering partner providing MEP services on medical office and healthcare facility projects.

Scale indicators1 record

Recent moves6 records

Expansion highlights4 records

Broad incumbents

• Architecture-Studio: Major French architecture firm active across cultural, public, and institutional building types. Comparable as a French practice competing for the same public-sector cultural and educational commissions at a larger scale.
• Kardham Group: French design, engineering, and build group covering architecture, interior design and real estate. Comparable through its architecture practice serving corporate, public, and institutional clients across France.
• Valode & Pistre: Major French architecture firm with extensive public-sector and cultural-venue experience (e.g., large convention and congress centers). Comparable in competing for major French public architectural commissions.
• Wilmotte & Associés: Prominent Paris-based architecture studio with a portfolio spanning cultural, residential, and public-sector buildings. Comparable as a French B2G/B2B architecture practice engaged on similar typologies.
• Jean-Paul Viguier et Associés: Established French architecture firm delivering public and private institutional projects across France. Comparable in its focus on large public-sector buildings and design competitions.
• Groupe-6: French architectural firm specialised in public and healthcare facilities, including hospitals and university buildings. Comparable target client base and use of public architectural competitions.
• ANMA (Agence Nicolas Michelin & Associés): French architecture studio known for public-sector cultural and educational projects. Comparable through its dependence on French public tenders and architectural competitions.

Direct peers

• AIA Life Designers: French architectural practice with a strong specialisation in healthcare and life sciences facilities (hôpitaux, EHPAD, médico-social). Directly comparable in that both firms target public-sector healthcare clients and have built expertise in the same regulatory-intensive building typologies.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/pierron

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Stone Architecture