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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,816 companies indexed · Last updated: today
DirectorySite Preparation

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Matching companies

1'168 companies found

John & Sommer Bau AG Logo

John & Sommer Bau AG 

Sargans · Since 2022

The core activity of John + Sommer Bau AG is construction, including the execution of construction projects, demolition work and customer work in the field of construction.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.5(13)
Kernbohr Express Service Koch GmbH Logo

Kernbohr Express Service Koch GmbH 

Zofingen · Since 1998

The core activity of Kernbohr Express Koch includes the execution of specialized construction services, in particular: Core drilling: precise drilling for the installation of pipes, house connections, cables or for chimney openings, waterless and dust-free. Milling work: demolition of walls, ceilings, floors, creation of precise openings for window, door or staircase installation or for simple separation cuts. Fire compartmentalization: measures to prevent the spread of fire. CFRP structural reinforcement: reinforcement of structures with carbon fiber reinforced polymers (CFRP). Special works: other specialized construction services, such as grinding and cutting.

Site Preparation
View profile4.7(13)
Michaud et Mariaux SA Logo

Michaud et Mariaux SA 

Monthey · Since 1990

Michaud et Mariaux SA provides civil engineering and building construction services, including works on bridges, tunnels and other infrastructure, as well as building construction and renovation. The company also performs earthworks and site development, operates construction machinery and vehicles, and offers vocational training positions.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.9(13)
Papaux Construction et Rénovation SA Logo

Papaux Construction et Rénovation SA 

Villarsel-Le-Gibloux · Since 2011

The core activity of Papaux Construction et Rénovation SA is the provision of construction and renovation services.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4(13)
ThermSwiss AG Logo

ThermSwiss AG 

Walterswil So · Since 2023

The core activity of ThermSwiss AG is the execution of drilling and probing works for geothermal projects, including drilling for the use of geothermal energy, exploration drilling, probing drilling, construction of small filter wells, extension works and planning of ground probe systems.

Site Preparation
View profile4.9(13)
Waldmann Logo

Waldmann 

Neunkirch · Since 2010

The core activity of Waldmann company consists of the manufacture, delivery and repair of hydraulic hoses, hydraulic lines, technical hoses, drive technology, fluid technology and mechanical workshop services. This also includes emergency and repair services for various applications, including passenger cars.

Building MaintenanceSite PreparationTimber Construction & Carpentry
View profile5(13)
Alfred Hirt Bau AG Logo

Alfred Hirt Bau AG 

Tüscherz-Alfermée · Since 1995

The core activity of Alfred Hirt Bau AG encompasses the execution of construction and civil engineering works, conversions, restorations, renovations, as well as specialized works such as natural stone masonry and lake works. The company offers a wide range of services, including extensions, road construction, utility line construction, sewerage, demolitions, dismantling, core drilling, landscaping, and window and door frame supplements.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.8(12)
Bala Bauservice GmbH Logo

Bala Bauservice GmbH 

Zwillikon · Since 2009

The core activity of Bala Bauservice GmbH is the provision of construction and construction-related services, in particular: * Civil engineering and road construction (e.g. road construction, surfacing, civil engineering, excavation) * Pipeline and sewer construction (e.g. pipeline construction, sewer systems, water pipes) * Landscaping (e.g. new installations, pond construction, natural stone walls) * Building construction and renovations (e.g. extensions, concrete facades, concrete renovations, kitchen and bathroom renovations) * Paving and natural stone flooring * Core drilling and pipe connections The company also offers services such as construction consulting, tenders, cost estimation, construction management, construction execution and construction supervision.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.3(12)
Clausen Beton-Trenn AG Logo

Clausen Beton-Trenn AG 

Gamsen · Since 1985

The core activity of Clausen Beton-Trenn AG is the execution of concrete cutting and drilling work as well as concrete demolition and dismantling. This includes in particular: concrete cutting with circular and wire saws, core drilling in concrete, masonry, artificial or natural stone or rock, concrete dismantling and demolition, pit service, disposal and removal of demolition material, and pressing work for crushing and splitting concrete parts, foundations or retaining walls as well as natural stones. The company offers these services for various fields of application, such as road construction, concrete and natural stone processing, and the execution of exploratory drilling for quality testing.

Site Preparation
View profile5(12)
Gottlieb Müller AG, Hoch- und Tiefbau Logo

Gottlieb Müller AG, Hoch- und Tiefbau 

Zofingen · Since 1999

The company's core activity includes the execution of construction, civil engineering, renovation and customer service work, including the construction of industrial and residential buildings, sewer civil engineering, conversions, renovations and smaller masonry work.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4(12)
Luzi Bau AG Logo

Luzi Bau AG 

Zillis · Since 2004

The core activity of Luzi Bau AG is the construction and renovation of buildings and infrastructure, including civil engineering, construction, conversion, renovations, concrete repairs, paving, coating works, drilling and cutting of concrete. The company also offers specialized services such as customer-specific masonry and coating works.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.8(12)
Nikova Bau GmbH Logo

Nikova Bau GmbH 

Basel · Since 2023

The core activity of Nikova Bau GmbH is the execution of construction projects, including renovation work, extensions, refurbishments, renovations, facade work, demolition work and core drilling, as well as the associated services such as construction planning, interior finishing and project management.

Building MaintenanceSite Preparation
View profile5(12)
W. Stalder AG Logo

W. Stalder AG 

Bigenthal · Since 2001

The core activity of W. Stalder AG primarily encompasses the areas of transportation and heavy equipment rental. Specifically, the company offers the following services: transportation of building materials, waste, and other goods; rental of heavy equipment, such as excavators and other machinery; and container transport for excavation, old pavement, construction waste, roofing materials, sorted materials, green waste, mixed construction waste, concrete demolition, old windows, and other materials. Thus, the company provides a comprehensive range of services for the construction and waste management industries.

Site Preparation
View profile4.4(12)
Wyder Abbruch und Aushub AG Logo

Wyder Abbruch und Aushub AG 

Forch · Since 2018

The core activity of Wyder Abbruch und Aushub AG is the execution of building demolition, excavation and grave works, as well as the creation of terrain adjustments and stone walls. This also includes transports, disposals, crane work and the sale of gravel and humus.

Site Preparation
View profile4.5(12)
BATI-RENOV SA Logo

BATI-RENOV SA 

Carouge Ge · Since 1998

The core activity of Bâti-Rénov SA is the general renovation of buildings, including: demolition and preparation, small masonry work, tiling, painting and wallpapering, and asbestos diagnosis. The company offers these services as a general contractor and works with various specialists and partners to enable comprehensive building renovations.

Building ConstructionBuilding MaintenanceGeneral Contractors
View profile3.9(11)
Baumann Bauunternehmung Logo

Baumann Bauunternehmung 

Hemmiken · Since 2008

The core activity of Baumann Bauunternehmung is the execution of excavator work, garden construction demolition, civil engineering and core drilling.

Civil EngineeringHorticulture & LandscapingSite Preparation
View profile5(11)
Brigger Bau AG Logo

Brigger Bau AG 

Grächen · Since 2011

Brigger Bau AG is a construction company that carries out building and civil engineering projects as well as renovations and demolition work. Its services include transport operations, supply of gravel and concrete from on-site plants, recycling and blasting, and project planning/general contracting.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.2(11)
Conforti SA Logo

Conforti SA 

Martigny · Since 1982

Conforti is a Swiss company specializing in the fields of construction, civil engineering, and materials extraction. The company's core activities include: Building: construction of residential buildings, office buildings, industrial facilities, and other structures; Civil engineering: planning and execution of infrastructure projects such as roads, bridges, tunnels, and other public facilities; Materials extraction: quarrying and processing of building materials, particularly at the Carrière de l'Aboyeu in Collonges. As a result, the company offers a comprehensive range of services in the construction and infrastructure sectors.

Building ConstructionCivil EngineeringSite Preparation
View profile4.1(11)
e-therm ag Logo

e-therm ag 

Uetendorf · Since 2014

e-therm ag performs drilling for geothermal probes and provides consulting, drilling services (airlift and circulation drilling), pipe connections to buildings, connection to heat pumps and system filling. The company carries out boreholes to depths beyond 400 m and documents probe functionality using electronic testing according to SIA 384/6.

Site Preparation
View profile4.5(11)
e-therm ag Logo

e-therm ag 

Thun · Since 1990

e-therm ag is a construction services company specialising in the drilling and installation of ground-source (geothermal) probes. The company performs boreholes using airlift or circulation methods (to depths beyond 400 m), installs PE probes, lays connection lines and heat-pump connections, carries out bentonite backfilling and electronic testing with documentation in accordance with SIA 384/6.

Site Preparation
View profile4.5(11)
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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.
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