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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryConstruction & Architecture

Construction & Architecture

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48'330 companies found

Keller Holzbau + Schreinerei AG Logo

Keller Holzbau + Schreinerei AG 

Dörflingen · Since 1993

The core activity of Keller Holzbau + Schreinerei AG encompasses the manufacture, processing and maintenance of timber constructions, particularly in the field of prefabricated construction (single-family homes, stables, commercial halls), as well as the production of stairs, kitchens and joinery work. This also includes services such as planning, execution, construction supervision and production.

Timber Construction & Carpentry
View profile4.3(3)
Ken Architekten BSA AG Logo

Ken Architekten BSA AG 

Zurich · Since 1995

The core activity of Ken Architekten BSA AG is the planning and realization of architectural projects, in particular new buildings, conversions and competitions, with a focus on sustainable concepts, considerate handling of the environment and the creation of atmospheric spaces in characterful houses.

Architecture Firms
View profile3.7(3)
KG BauPlus GmbH Logo

KG BauPlus GmbH 

Aadorf · Since 2016

The company KG BauPlus GmbH is a civil engineering firm specializing in static and constructive issues related to load-bearing structures in wood, concrete, and steel. The core activities include: Static consulting for architects and builders, Creating static concepts for renovation and new construction, Static dimensioning of load-bearing structures in wood, concrete, and steel, Creating formwork and reinforcement plans, Excavation plans, and Tenders. The company thus provides engineering services for the planning and execution of construction projects.

Civil Engineering FirmsGeneral Contractors
View profile5(3)
K. Hottinger AG Logo

K. Hottinger AG 

Zurich · Since 2007

The core activity of K. Hottinger AG is the provision of services in the field of building technology, particularly: Installation, maintenance and repair of heating and cooling systems, Sanitary service and emergency service, Water treatment, Special services such as water church and courses/training. The company thus offers a wide range of services in the field of building technology to meet the needs of private and business customers.

Specialized Construction ActivitiesPlumbing & Building Services
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KIBAG Bauleistungen AG Logo

KIBAG Bauleistungen AG 

Jona · Since 2005

KIBAG Bauleistungen AG provides road construction, deep civil engineering and demolition services, covering traffic-route construction, deep excavation works and dismantling. The location page publishes contact details and downloadable brochures related to these services.

Civil Engineering
View profile4.7(3)
Kilcher Bauunternehmung AG Logo

Kilcher Bauunternehmung AG 

Dornach · Since 2019

The core activity of Kilcher Bauunternehmung AG is the execution of construction projects, including new buildings, renovation work, and other construction work, with the company offering general contracting, renovation, and masonry services, and working closely with architects.

Building ConstructionBuilding MaintenanceMasonry Work
View profile5(3)
Kilian Senn GmbH Logo

Kilian Senn GmbH 

Wollerau · Since 2018

The core activity of Kilian Senn GmbH is the execution of civil engineering, environmental and maintenance work of all kinds, including asphalt works, demolition, concrete work, gardening, maintenance services for houses and properties, as well as transport and project work.

Civil Engineering
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Kipp Holzbau und Bedachungen GmbH Logo

Kipp Holzbau und Bedachungen GmbH 

Allschwil · Since 2013

The core activity of Kipp Holzbau & Bedachungen GmbH is the planning, coordination and execution of construction projects, particularly in the field of timber construction, with a focus on sustainable and ecological building methods. This includes: timber construction and roofing, extensions and conversions, interior finishing and staircase construction, window construction and repair services, building physics and fire protection, as well as terrace construction, renovations and roofing work. The company offers a comprehensive package from a single source, from consulting to execution, and places emphasis on quality, sustainability and customer satisfaction.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
View profile3.7(3)
K&L Architekten AG Logo

K&L Architekten AG 

St. Gallen · Since 1999

K&L Architekten AG is an architectural practice providing design, project and planning services for residential, commercial, sports and public buildings as well as site developments. The firm undertakes competitions, studies and construction projects with an emphasis on integrated planning, sustainability and timber construction.

Architecture Firms
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KLR Architekten GmbH Logo

KLR Architekten GmbH 

Zurich · Since 2010

KLR Architekten GmbH is an architectural firm that develops building projects and supports clients from concept and program definition through to execution and handover. The firm also produces professional visualizations for architects and real-estate clients using digital and/or analogue techniques.

Architecture Firms
View profile5(3)
K Montagen GmbH Logo

K Montagen GmbH 

Mühlehorn · Since 2023

The core activity of K-Montagen GmbH is the provision of services in the field of metal construction, design and assembly, including the provision of external personnel for companies with skilled labor shortages.

General Contractors
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KMS ARCHITECTES SA Logo

KMS ARCHITECTES SA 

Geneva · Since 2012

The core activity of KMS architectes SA is the planning, development and realization of architectural projects, particularly in the field of residential construction, renovation and transformation of buildings, as well as the construction of public buildings such as schools and restaurants. The company also offers services in the field of urban planning and urban development.

Architecture Firms
View profile3.7(3)
KNB GmbH Logo

KNB GmbH 

Buonas · Since 2010

The core activity of KNB GmbH is the provision of construction services, particularly in the areas of quantity surveying, construction costs and project management, specifically for construction companies, architects, engineers, general contractors (GC), total contractors (TC) and building owners.

Construction & Project Management
View profile3.7(3)
Knechtle Holzbau, Inhaber Willi Staub Logo

Knechtle Holzbau, Inhaber Willi Staub 

Bühler · Since 2006

The core activity of Knechtle Holzbau is the planning, manufacturing and assembly of timber structures, including carpentry, joinery, silo construction and element construction. The company also offers services such as renovation, refurbishment and conversion of existing timber buildings.

Interior ConstructionTimber Construction & Carpentry
View profile5(3)
Knechtli & Leuenberger GmbH Logo

Knechtli & Leuenberger GmbH 

Muhen · Since 2023

The core activity of Knechtli & Leuenberger GmbH is the provision of services in the field of architecture and construction management, including individual consulting, support and implementation of construction projects, such as feasibility studies, renovation projects, residential buildings and retail projects.

Architecture Firms
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Knörr Architekten AG Logo

Knörr Architekten AG 

Zurich · Since 2016

The core activity of Knörr Architekten AG is the provision of architectural services, including estimates, owner consulting, sales and rental of real estate. The company also offers specific services such as project management, drawings and accounting. The core activity can be summarized as architecture and real estate services.

Architecture Firms
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KNTXT Architektur GmbH Logo

KNTXT Architektur GmbH 

Zurich · Since 2015

KNTXT Architektur GmbH is an architectural firm specializing in the planning and realization of buildings and facilities in the areas of schools, community centers, residential buildings, office buildings, and other public and private constructions. The company's core activity includes participating in architectural competitions, creating studies and designs, planning and executing construction projects, as well as repurposing and renovating existing buildings.

Architecture Firms
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Kobelt & Partner AG Logo

Kobelt & Partner AG 

Weinfelden · Since 1990

The core activity of Kobelt & Partner AG is general contracting in the construction industry, including the development, planning and realization of buildings, as well as the provision of construction services such as execution planning, cost planning, project and construction management, and owner consulting.

Building ConstructionBuilding MaintenanceGeneral Contractors
View profile3.7(3)
Kocher Küchen AG Logo

Kocher Küchen AG 

Busswil Be · Since 1967

The core activity of Kocher Küchen AG is the manufacture and sale of kitchens.

Interior ConstructionJoinery
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Kocher & Partner Architekten AG Logo

Kocher & Partner Architekten AG 

Düdingen · Since 2017

Kocher & Partner Architekten AG is an architectural firm providing planning, project management and implementation services for residential and commercial buildings. The practice works on single-family and multi-family housing, renovations and refurbishments, estate developments and mixed-use projects, as well as commercial and agricultural buildings, and prepares sales dossiers for project sales.

Architecture Firms
View profile3.3(3)
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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.