op-arch AG

What op-arch AG does

op-arch AG is a Zurich-based Swiss architecture firm (Aktiengesellschaft) that provides full-service architectural design for residential, institutional, commercial, and public buildings. The practice traces its lineage to agps architecture ltd., established in 1994, and was reorganized under the op-arch AG name in 2013. Core service lines include architectural building design (Bauwerke), competition projects (Wettbewerbe), and urban development studies (Studien), with a portfolio spanning 100+ completed projects and competition entries across Switzerland. The firm specializes in sustainable architecture with consistent Minergie, Minergie-Eco, and LEED Platinum certifications, and incorporates innovations such as prefabricated timber construction, integrated photovoltaic systems, and shower heat-recovery technology. Key clients include housing cooperatives (Baugenossenschaft Glattal Zürich), public institutions (Stadt Zürich, armasuisse Immobilien), commercial real estate investors (Ecoreal Schweizerische Immobilien Anlagestiftung), industrial firms (GOBA AG), schools (Zurich International School), and nonprofits (IUCN).

The firm operates a project-based professional services revenue model, with fees negotiated on a per-project basis and acquired primarily through architectural competitions (Projektwettbewerbe and Studienaufträge) and direct commissions from repeat clients. The practice is anchored by founding partners Hanspeter Oester (dipl. Arch. ETH SIA) and Reto Pfenninger (dipl. Arch. HTL BSA), supported by approximately 20 architects and administrative staff with credentials from ETH Zürich, TU Wien, TU Budapest, and FHNW. Go-to-market is sales-led and relationship-driven, augmented by publication features in Swiss architectural press (archithese, Hochparterre, TEC21), exhibition participation (Landschaftstadt Zürich at ZAZ Bellerive, Fondazione Prada Milano), and a curated project portfolio on the company website. The firm has accumulated 12+ documented industry awards including SIA Auszeichnung, AIA Merit and Honor Awards, Schweizer Solarpreis, and Goldener Schemel für Baukultur. Headquarters are at Freilagerstrasse 19, Zürich, following a relocation in August 2024, and the firm maintains an active job postings page indicating ongoing hiring. No external funding, acquisitions, or public ownership have been disclosed.

Name

op-arch AG

Legal name

op-arch AG

Website

https://op-arch.ch

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

1–10 employees

Short description

op-arch AG is a Zurich-based Swiss architecture firm specializing in sustainable residential, educational, public, and commercial buildings, serving housing cooperatives, municipalities, and private developers across Switzerland through architectural competitions and direct commissions.

Ownership category

akta.pro rank

Product category

Architectural Services

NAICS

Architectural Services (541310), Architectural Services (54131)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industry

Landscape Architecture & Site Design (BPAHAKAC)

Keywords

• Architectural design services
• Sustainable building design
• Residential architecture
• Public building design
• Urban development studies

Headquarters

HQ city

Zürich

HQ country

Switzerland

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architectural Services and Design: The firm generates revenue through fees for architectural design services, including project development, competition entries, and construction administration. Revenue is project-based and derived from commissions awarded through competitions and direct client engagements.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

op-arch AG is a Zürich-based architecture firm providing full-service architectural design for residential, commercial, institutional, and public buildings in Switzerland, from concept through construction. The firm organizes its work into three interconnected service lines: built projects (Bauwerke), competition entries (Wettbewerbe), and urban development studies (Studien), with a documented specialization in sustainable design using Minergie and Minergie-Eco certifications.

Product overview

op-arch AG is a Zurich-based architecture firm offering comprehensive architectural services. Their core offering consists of three interconnected service lines: architectural design of buildings (Bauwerke), competition projects (Wettbewerbe), and urban development studies (Studien). The firm specializes in residential buildings (including housing cooperatives and senior living), school and educational facilities, and commercial buildings. Their portfolio ranges from individual building projects to large-scale urban developments. The company also contributes to architectural discourse through publications, lectures, and exhibitions.

Differentiator

Problem solved

Functional benefit

Products and services

• Architectural Design Services (Bauwerke) Full-service architectural design for residential, commercial, institutional, and public buildings in Switzerland, delivered from concept through construction, including built projects (Bauwerke) such as Schulanlage Blumenfeld Zürich, Apartmentsiedlung Wagonlits Schlieren, and Badehaus Hof Weissbad.
• Competition Projects (Wettbewerbe) Participation in Swiss architectural competitions (Projektwettbewerbe and Studienaufträge) for new building projects, urban development, and public facilities, with a documented track record of multiple first prizes (1. Preis) including Neues Zentrum Dorfmatt Risch Rotkreuz (2025), Ersatzneubau Grondius Oberrieden (2024), and Ersatzneubau Bergacker Zürich Affoltern (2023).
• Urban Development Studies (Studien) Strategic planning and feasibility studies for urban development, area development, and architectural test planning, including projects such as Entwicklung Gaswerkareal und Brückenkopf West in Bern (2021, 4. Rang/2. Preis).

Quantifiable outcome

• Minergie-Eco certified housing projects with energy-efficient design
• +3 more outcomes

Named customers8 records

Segments4 records

Ideal customer profiles3 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.

• Baugenossenschaft Glattal Zürich (BGZ)coreStrategic or Co-development PartnerLong-term collaboration with BGZ on housing projects including the Ersatzneubau Wohnsiedlung Neuwiesen project. The housing cooperative commissions comprehensive architectural services for affordable housing development.
• Ecoreal Schweizerische Immobilien AnlagestiftungcoreStrategic or Co-development PartnerCommissioned for the Wagonlits apartment settlement project in Schlieren, representing a significant investment in micro-apartment housing for the investment foundation.
• Nipkow LandschaftsarchitekturminorImplementation/ SI/ Consulting PartnerLandscape architecture collaboration on housing projects including Neuwiesen settlement. Provides specialized landscape design services.
• Büro Thomas Boyle + Partner AGminorImplementation/ SI/ Consulting PartnerStructural engineering partner (Bauingenieurwesen) on multiple projects including Neuwiesen housing settlement and Wagonlits apartments.
• Sustainable System Solutions GmbHminorImplementation/ SI/ Consulting PartnerBuilding services engineering (HLKKSE) collaboration on sustainable building projects, including Minergie-standard housing.
• Eberle Architektur GmbHminorImplementation/ SI/ Consulting PartnerCost management and construction supervision (Kosten und Bauleitung) on GOBA Mineralquelle project.
• Gerevini Ingenieurbüro AGminorImplementation/ SI/ Consulting PartnerStructural and building physics engineering (Tragwerk und Bauphysik) collaboration.
• Blumer-Lehmann AGminorImplementation/ SI/ Consulting PartnerTimber construction specialist providing prefabricated timber elements for projects including Flickflauder restaurant and Badehaus Weissbad.
• Amstein + Walthert AGminorImplementation/ SI/ Consulting PartnerBuilding services engineering (Gebäudetechnik) collaboration on multiple major projects including schools and office buildings.
• BAKUS Bauphysik & Akustik GmbHminorImplementation/ SI/ Consulting PartnerBuilding physics and acoustics consulting on numerous projects including Wagonlits, schools, and office buildings.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• EM2N Architekten: Zurich-based architecture firm of similar size (~30 staff) specializing in residential, public, and cultural buildings. Comparable in scale and project types, with strong design credentials and competition participation.
• Diener & Diener Architekten: Basel-based architecture firm of similar scale, working across residential, public, and commercial buildings in Switzerland. Direct competitor in architectural competitions and design services.
• Burckhardt+Partner AG: One of Switzerland's largest and most established architecture firms, headquartered in Zurich with 400+ staff. Competes with op-arch in residential, public, and commercial architecture across Switzerland, particularly in the cooperative and public sector.
• Max Dudler Architekten: Swiss-German architecture firm with offices in Zurich and Berlin, working on residential, cultural, and public buildings. Comparable in scale and competition-based project acquisition approach.
• Studio Vulkan Architekten: Zurich-based architecture firm of similar size focused on residential, commercial, and public projects in Switzerland. Comparable practice profile and competition participation.
• Atelier Girsberger Architekten AG: Zurich-based architecture firm of comparable size focusing on residential, public, and commercial projects in Switzerland. Similar position in Swiss competition-based market for design commissions.

Regional players

• HPP Architekten: Major German architecture firm with similar mid-sized practice profile, specializing in residential, public, and commercial projects. Comparable in scale but operates primarily in German-speaking markets outside Switzerland.

Broad incumbents

• Foster + Partners: Global architecture firm operating broadly in residential, public, cultural, and commercial design. Overlaps in public/institutional building type but at much larger scale and broader geographic reach.
• BIG (Bjarke Ingels Group): Internationally recognized architecture firm working across residential, public, and commercial architecture with strong sustainability focus. Comparable sustainability positioning but at significantly larger scale.
• David Chipperfield Architects: Internationally recognized architecture firm with offices including Zurich. Operates broadly across residential, cultural, public, and commercial architecture at larger scale; competes in similar high-end project categories.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/op-arch-ag

Revenue estimate

Valuation estimate

Number of profiles

Profiles18 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 op-arch AG