OS-architectes sàrl

What OS-architectes sàrl does

OS-architectes sàrl is a privately held Swiss architecture firm (société à responsabilité limitée) founded in 2015 by architects Marco Dos Santos (ESAP) and Patrick Oliva (HES/SIA), headquartered in Marin-Epagnier in the Canton of Neuchâtel. The firm operates as a boutique practice of eight collaborators delivering architectural design, renovation, interior design, and urban planning services across residential, public-sector, commercial, and healthcare segments, with operating geographies spanning the cantons of Neuchâtel, Bern, Vaud, and Valais. Its core technology is rooted in a contextual, sober, and coherent design methodology emphasizing material choice, construction methods, and space quality, supported by documented expertise in Minergie and Minergie-ECO sustainable-building certifications.

The business model is professional services-based: revenue is generated through direct mandates from private clients and invited or open architectural competitions for public-sector and enterprise clients, with project fees typically tied to construction cost. The firm supplements project work with a bureau conseil (advisory/consulting) role for multiple municipalities, providing recurring urban planning and territorial development expertise. Notable enterprise and government clients include Coopérative Migros Neuchâtel-Fribourg, the Office fédéral des routes (OFROU), the Etat de Neuchâtel, and several communes across Suisse romande. Distribution relies almost entirely on competition wins, direct mandates, referrals, and project-portfolio visibility on its website, with no traditional marketing or external funding apparatus.

Strategically, the firm has accumulated at least four documented first-prize competition wins (Migros Neuveville 2016, Collège des Tertres 2019, CERM 2023, Collège de la Gouvernière 2024), co-development partnerships with peer firms including Aviolat Chaperon Escobar Architectes and JBC Architectes, and entry into federal-level infrastructure work alongside its communal base. Ownership remains entirely with the two co-founders; the firm has no parent company, no external funding rounds, and no recorded M&A activity. Operational focus is on design quality, sustainability credentials, and embedded municipal relationships rather than scale or geographic reach beyond Suisse romande.

Name

OS-architectes sàrl

Legal name

OS-architectes sàrl

Website

https://os-architectes.ch

Company type

Private

Founded year

2015

Operating status

Operating

Headcount range

1–10 employees

Short description

OS-architectes sàrl is a Swiss boutique architecture firm founded in 2015, headquartered in Marin-Epagnier, serving private, public-sector, commercial, and healthcare clients across Suisse romande with design, renovation, and urban planning services delivered by eight collaborators.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (54131), Architectural Services (541310)

SIC

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

akta.pro primary industry

Architectural Design Services (BPAHAKAA)

akta.pro secondary industry

Interior Design Services (BPAHAKAB)

Keywords

• Architectural design services
• Building renovation services
• Urban planning consulting
• Sustainable architecture design
• Public building architecture

Headquarters

HQ city

Marin-Epagnier

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales

Revenue model

1. Architectural Services: Revenue generated through architectural design services for residential, commercial, public, and renovation projects. Services span from concept to realization with personalized follow-up throughout each project.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

OS-architectes sàrl provides comprehensive architectural design services from conception to realization, covering individual villas, multi-family housing, public buildings (schools, road maintenance centers), commercial spaces (Migros stores), and healthcare facilities (EMS). The firm also delivers renovation and extension services, urban planning consulting for municipalities, and participates in architectural competitions. Services span residential, public, commercial, and renovation projects with personalized follow-up throughout each engagement.

Product overview

OS-architectes sàrl is a Swiss architecture firm founded in 2015 by Marco Dos Santos and Patrick Oliva, offering comprehensive architectural services from concept to completion. The firm operates as a single integrated service rather than a platform-with-modules architecture. Its core offerings include architectural design for residential (individual villas, multi-family housing), public buildings (schools, EMS/elderly care facilities), and commercial projects (Migros stores, McDonald's restaurants), renovation and extension services, urban planning consulting for municipalities, and competition projects. The firm maintains a team of eight collaborators and is based in Marin-Epagnier, Switzerland.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services Comprehensive architectural design services from conception to realization, including residential villas, multi-family housing, public buildings, and commercial projects. The service covers new construction across diverse building types and scales, with personalized follow-up throughout each project.
• Renovation and Extension Services Renovation and extension services for existing buildings including villas, public facilities, and commercial spaces. The service includes heritage-sensitive renovation with sustainability certifications such as Minergie and Minergie-ECO.
• Urban Planning Consulting Municipal advisory services providing expertise in urban planning, territorial development, and local architectural development. The firm acts as a consulting bureau (bureau conseil) for several communes.
• Architectural Competition Services Participation in architectural competitions (MEP, open competitions, invited competitions) for public and private clients. The firm has secured multiple first-prize wins including Migros Neuveville (2016), Collège des Tertres (2019), CERM (2023), and Collège de la Gouvernière (2024).
• Interior Design Services Interior layout and design services for residential, commercial, and public spaces, integrated within the firm's broader architectural offering.

Quantifiable outcome

• Multiple first-prize competition wins in architectural competitions
• +1 more outcomes

Named customers7 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

Three partnerships are on record, tiered minor.

• Aviolat Chaperon Escobar architectesminorStrategic or Co-development PartnerCollaboration on the Collège de la Gouvernière project in Lignières. Aviolat Chaperon Escobar architectes is listed as a partner in this MEP competition project.
• Aviolat Chaperon Escobar ArchitectesminorStrategic or Co-development PartnerCollaboration on the Collège des Mûriers project (MEP 2e prix) in Colombier, NE.
• JBC architectesminorStrategic or Co-development PartnerCollaboration on the EMS Les Glariers project in Sion, a competition project for elderly care home.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Diener & Diener Architekten: Well-established Basel-based Swiss architecture practice with a broad portfolio of residential, cultural, and public buildings. Operates as a broader incumbent in the same Swiss professional services category, often competing for the same high-profile public commissions.
• Brauen Wälchli Architectes: Lausanne-based architecture firm and former employer of Marco Dos Santos. Comparable portfolio of residential, public, and renovation projects in western Switzerland, positioning it as a broader incumbent peer in the same regional market.
• Burkhalter Sumi Architekten: Zurich-based architecture firm with comparable expertise in residential, public, and renovation projects across Switzerland. Functions as a broader incumbent peer that competes in similar national-level competitions.
• Geninasca Delefortrie Architectes: Established Neuchâtel-based architecture practice where co-founder Marco Dos Santos previously worked. Operates in the same regional market and project typologies (residential, public, cultural), making it a natural broader incumbent peer.

Direct peers

• Aviolat Chaperon Escobar Architectes: Swiss Romande architecture practice with a comparable boutique profile and similar project scale. Co-partnered with OS-architectes on the Collège des Tertres and Collège des Mûriers competitions, indicating directly overlapping market and capability.
• JBC architectes: Swiss architecture firm collaborating with OS-architectes on the EMS Les Glariers elderly care home project in Sion, indicating a directly comparable focus on healthcare and public-sector architecture in western Switzerland.
• GMS architectes SA: Swiss architecture firm where co-founder Patrick Oliva previously worked. Comparable scale and project typologies make it a directly relevant former-employer peer in the same professional services space.
• Arkhi'Crea: Boutique Swiss architecture practice where Patrick Oliva previously worked. Similar size and project focus provide a directly comparable peer benchmark.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/os-architectes-s%C3%A0rl

Compliance2 records

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 OS-architectes sàrl