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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint731,019 companies indexed · Last updated: today
DirectoryConstruction & Architecture

Construction & Architecture

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IndustryConstruction & Architecture
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64'971 companies found

norm holz bau ag Logo

norm holz bau ag 

Ramsen · Since 1978

The core activity of Norm Holz Bau AG is timber construction and related services, in particular: carpentry and joinery, furniture making, window construction, insect protection and burglary protection, element construction and frame construction, timber construction, renovations and conversions, project development, construction of single-family and semi-detached houses, Minergie houses and timber houses, as well as exhibition and shop construction. The company thus offers a wide range of services in the field of timber construction and wood processing.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
View profile4.3(6)
nurnikat GmbH Logo

nurnikat GmbH 

Basel · Since 2021

The core activity of nurnikat GmbH encompasses services in the field of property maintenance and renovation, specifically: painting services, construction and renovation work, facade work, property management, and mold remediation. The company thus offers a comprehensive range of services to maintain, renovate and improve properties.

Building Maintenance
View profile5(6)
Nussbaumer Architekten AG Logo

Nussbaumer Architekten AG 

Zurich · Since 2019

The core activity of Nussbaumer Architekten AG is the provision of architectural services. The company is involved in the planning, design and realization of construction projects and offers services such as architecture, color design and drawing.

Architecture Firms
View profile5(6)
Oberholzer Architektur AG Logo

Oberholzer Architektur AG 

Sempach · Since 2015

The core activity of Oberholzer Architektur AG is the planning, design and realization of architectural projects, including project management and building economics. The company offers services such as design, planning, project management and construction supervision for residential and commercial buildings, as well as renovations and conversions.

Architecture FirmsGeneral Contractors
View profile5(6)
Odwood GmbH Logo

Odwood GmbH 

Meggen · Since 2022

Odwood GmbH is a carpentry workshop providing custom-made furniture and interior fit-outs, managing projects from planning through to delivery. Services include planning and consulting, bespoke furniture (kitchens, bathroom furniture, cabinets, doors), maintenance and repair of wooden furniture, and carpentry work for renovations and new builds, with optional small-scale project management.

Building MaintenanceInterior Construction
View profile4.3(6)
Offconsult AG Logo

Offconsult AG 

Zurich · Since 1997

The core activity of Offconsult is the consulting and implementation of innovative space concepts and office planning with a focus on New Work and flexibility. This includes: Consulting in the areas of New Work, Workplace Design and Strategy, Interior Design and planning of office and work environments, Construction Management and Project Management, as well as Workplace Management and customer support during project implementation. Offconsult thus offers a comprehensive range of services to support customers in designing and implementing forward-looking work environments.

Architecture FirmsGeneral Contractors
View profile4.3(6)
on3 AG Logo

on3 AG 

Basel · Since 2011

on3 AG is an architecture firm providing concept and design work as well as comprehensive planning services for residential, commercial and public buildings. The firm handles all project phases — study and design, cost estimation, execution planning, construction management and handover — and also undertakes renovations, conversions and interior projects; a related company serves as a general contractor for housing developments.

Architecture FirmsGeneral Contractors
View profile3(6)
ON3 ARCHITEKTEN GmbH Logo

ON3 ARCHITEKTEN GmbH 

Basel · Since 2004

ON3 ARCHITEKTEN GmbH is an architectural practice that carries out all planning and realisation phases, from study and design through execution planning to construction and site supervision. The firm designs single-family homes, residential and commercial buildings as well as public projects, and undertakes renovations, conversions and interior fit-outs, with a focus on housing. The practice also operates the related company on3 neues wohnen ag as a general contractor and offers an associated interior furnishing activity.

Architecture FirmsGeneral Contractors
View profile3(6)
on3 neues wohnen ag Logo

on3 neues wohnen ag 

Basel · Since 2009

on3 neues wohnen ag is a general contractor for residential development that develops and delivers housing projects. The company manages planning, coordination and implementation tasks on behalf of clients.

Architecture FirmsGeneral Contractors
View profile3(6)
Oppliger GmbH Logo

Oppliger GmbH 

Balsthal · Since 2015

The core activity of Oppliger GmbH is the provision of architectural and construction management services. This includes planning and CAD services, support for the realization of construction projects through local construction management, and the digitization of existing paper plans. The company also offers visualization services, including virtual tours of future construction projects.

Architecture Firms
View profile5(6)
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.