de giuli & portier architectes sa

What de giuli & portier architectes sa does

de Giuli & Portier architectes SA (dGPa) is a Geneva-based architecture firm operating continuously since 1961, with the current partnership between Jean-Noël de Giuli and Jean-Claude Portier formally established in 2001. The firm delivers integrated architectural services spanning conceptual design, schematic design, construction documentation, tendering, works supervision, and final project delivery. Its practice is built around a collective design philosophy that engages all stakeholders, combined with an in-house BIM (Building Information Modeling) pole of 8 specialists integrated since 2016 across the full project lifecycle.

dGPa serves a diverse client base across diplomatic missions (India, Egypt permanent missions in Geneva), luxury horology manufacturing (Audemars-Piguet manufacture at Le Brassus), hospitality and real estate development (Marriott Geneva Airport, Atrium Park, Maison des Missions), international NGOs (IFC/FICR headquarters extension), and international urban development (Madinaty, Egypt). The firm operates from a headquarters in Onex (Geneva) and a wholly-owned Lisbon subsidiary established in 2010, enabling cross-border mandates in the Middle East and North Africa.

The firm's revenue model is professional services fee-based, negotiated on a project-by-project basis with multi-year contract durations. Business is sourced through architectural competitions, invited tenders, and direct commissions from institutional clients. Beyond its own mandates, dGPa provides independent works direction (direction de travaux) services to other architecture firms as a subcontractor. The firm has earned multiple Minergie, Minergie P, Minergie ECO, and THPE sustainability certifications, and is recognized for delivering complex projects on time and on budget, including during the COVID-19 pandemic.

Name

de giuli & portier architectes sa

Legal name

de Giuli & Portier architectes SA

Website

https://dgpa.ch

Company type

Private

Founded year

1961

Operating status

Operating

Headcount range

11–50 employees

Short description

de Giuli & Portier architectes SA is a Geneva-based architecture firm founded in 1961, offering integrated design, BIM, and worksite direction services to diplomatic missions, luxury manufacturers, hospitality developers, NGOs, and urban planning clients across Switzerland and internationally.

Ownership category

akta.pro rank

Headquarters

HQ city

Onex

HQ country

Switzerland

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Revenue model

1. Architectural Design and Project Management Services: The firm earns fees by providing comprehensive architectural services across all project phases: conceptual design, schematic design, construction documentation, tendering, works supervision, and final delivery. Services are provided both for internal projects and as a subcontractor to fellow architects.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels8 records

Core offering

de Giuli & Portier architectes SA (dGPa) is a Geneva-based architecture firm providing full-lifecycle architectural services — from conceptual design and BIM-driven coordination through construction documentation, tendering, and on-site works supervision (direction de travaux). The firm delivers projects across residential, commercial, industrial, diplomatic, hospitality, and urban development typologies for institutional and private clients, with a BIM pole integrated since 2016 to unify all project actors around a shared digital model.

Product overview

de Giuli & Portier architectes SA (dGPa) is an architecture firm offering integrated architectural services including design, BIM methodology, worksite direction, heritage rehabilitation, and urban planning. The core offering centers on architecture services for diverse project types (residential, commercial, industrial, diplomatic, hospitality), supported by BIM processes from early design phases, and construction management through their worksite direction service. The firm operates from Geneva and Lisbon with approximately 40 team members.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services

Quantifiable outcome

• Marriott Geneva Airport hotel delivered on time and on budget despite COVID-19 pandemic and geopolitical disruptions, coordinating 62 local companies and ~130 workers on average on site.
• +3 more outcomes

Named customers13 records

Segments5 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered core and minor.

• MaS – Architectes SàrlcoreImplementation/ SI/ Consulting PartnerMaS-architectes, a Geneva-based architecture firm, commissioned dGPa as the works direction and execution team for the Marriott Geneva Airport Hotel. dGPa handled all technical coordination, construction documentation, tendering, works supervision, and financial management of the project, acting as the independent architect on behalf of the client.
• Living DesigncoreImplementation/ SI/ Consulting PartnerLiving Design, an international interior architecture firm, collaborated with dGPa on the Marriott Geneva Airport Hotel project, providing interior architecture services while dGPa handled the overall execution and works direction.
• Perkins & EastmanminorStrategic or Co-development PartnerPerkins & Eastman was the master planner for the Madinaty new city project in Egypt. dGPa was commissioned to design two mixed-use blocks within this master plan, integrating their architectural work into the broader urban framework established by Perkins & Eastman.

Scale indicators3 records

Recent moves6 records

Expansion highlights4 records

Direct peers

• Burckhardt+Partner: Swiss architecture and general planning firm with a comparable footprint in institutional, commercial, and industrial projects, headquartered in Switzerland with international offices — overlaps with dGPa on Swiss heritage and full-lifecycle service delivery.
• Snøhetta: Nordic architecture and design practice known for integrating sustainability, BIM/digital workflows, and cross-disciplinary project delivery — highly comparable to dGPa's combination of sustainability credentials and digital process integration from early design.
• Perkins&Will (Perkins Eastman): International architecture firm whose master-planning work on Egypt's Madinaty project brought dGPa in as design partner for mixed-use blocks; comparable in typology across large-scale institutional, residential, and master-planned development work.
• Atelier Jean Nouvel: French architecture firm with comparable boutique stature, signature iconic institutional and cultural projects, and a focus on contextually expressive design — comparable in scale, prestige tier, and typology mix with dGPa.
• Behnisch Architekten: German / international architecture practice specializing in sustainable, high-performance building design with strong in-house digital modeling and lifecycle expertise — directly comparable to dGPa in combining sustainability credentials with BIM-driven delivery for institutional clients.
• Studio Gang: International architecture and urban-design practice with explicit focus on sustainability, BIM-driven design research, and civic / institutional building typologies — overlaps directly with dGPa's BIM pole and institutional mandate mix.
• Christ & Gantenbein: Basel-based Swiss architecture firm of similar boutique scale with a comparable reputation for precision craft, cultural and institutional projects, and integration of digital workflows — a like-for-like Swiss peer operating in the same architectural niche.
• Diener & Diener Architekten: Swiss architecture firm with a long-established track record in residential, commercial, and cultural buildings; comparable in scale, generational continuity, and Swiss institutional client base.

Broad incumbents

• Herzog & de Meuron: Swiss-headquartered global architecture firm with substantially broader scale and global footprint, but a directly overlapping Swiss heritage and similar institutional and cultural mandate profile — a global incumbent in the same Swiss architecture category.
• David Chipperfield Architects: UK-headquartered international architecture practice with wider geographic reach and a comparable reputation for high-prestige cultural, civic, and diplomatic commissions — broader incumbent competing for similar Geneva-and-EMEA mandate pools.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/profile.php
• LinkedInlinkedin.com/company/de-giuli-portier-architectes-sa
• Instagraminstagram.com/dgpa_architectes

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

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M&A

Investments

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Frequently asked questions about de giuli & portier architectes sa