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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,805 companies indexed · Last updated: today
DirectorySite Preparation

Site Preparation

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1'168 companies found

Wernli Bau AG Logo

Wernli Bau AG 

Däniken So · Since 2006

The core activity of WernliBau AG encompasses the execution of construction projects, particularly conversions, extensions, renovations, restorations, core drilling and concrete cutting. The company offers its services to both private and commercial clients and has specialized in the timely and high-quality implementation of construction projects.

Building ConstructionBuilding MaintenanceSite Preparation
View profile5(2)
Widmer Traxbetrieb AG Logo

Widmer Traxbetrieb AG 

Gümmenen · Since 1989

The core activity of Widmer Traxbetrieb AG is civil engineering, particularly the execution of earthworks and construction projects using heavy machinery such as excavators, crawler dumpers and other specialized machines. The company offers services in the areas of civil engineering, earthworks and construction project management and has a fleet of construction machinery used for the execution of construction projects.

Civil EngineeringSite Preparation
View profile4.5(2)
Zimmermann AG Hoch- und Tiefbau Logo

Zimmermann AG Hoch- und Tiefbau 

Beatenberg · Since 1986

The core activity of Zimmermann AG is construction, including various specific services such as new construction, renovation, excavation, blasting, concrete work, pipeline construction, road construction, demolition, environmental work, small-scale construction, renovations, natural stone walls, flooring, plastering, facades and winter services.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile5(2)
Zobohr AG Logo

Zobohr AG 

Bad Ragaz · Since 2007

Zobohr AG carries out drilling and milling work on concrete and stone and provides contact information on its website.

Site Preparation
View profile4.5(2)
2 D-Bau AG Logo

2 D-Bau AG 

Beckenried · Since 2012

The core activity of 2 D-Bau AG is the provision of deep foundation services, including: excavation work, excavator work, demolition work, recultivation, natural stone walls, and sieve shovel sales. The company positions itself as an expert in deep foundation construction in Central Switzerland, particularly in the region around Lake Lucerne.

Site PreparationMasonry Work
View profile5(1)
AAB Amiante Assainissement Bâtiment SA Logo

AAB Amiante Assainissement Bâtiment SA 

Yverdon-Les-Bains · Since 2011

The core activity of AAB-SA is the execution of works in the field of environmental protection and building renovation, particularly with regard to the removal of asbestos and other pollutants. This includes: asbestos removal, building sanitation, decontamination, demolition, and aérogommage (a specialized process for removing pollutants using air jets). The company offers these services mainly in the context of construction projects and renovations, and operates in the Swiss Romandy region.

Building MaintenanceSite Preparation
View profile5(1)
ABSH GmbH Logo

ABSH GmbH 

Schaffhausen · Since 2024

The company's core activity includes the execution of demolition, dismantling and earthworks, including gutting, dismantling up to shell construction, total demolition of single and multi-family houses, as well as professional excavation for new buildings.

Site Preparation
View profile5(1)
Abt Reitplatzbau AG Logo

Abt Reitplatzbau AG 

Boswil · Since 2024

The core activity of Abt Reitplatzbau AG is the planning, construction and maintenance of riding arenas, as well as the manufacture and distribution of riding arena and flooring systems, including mat and grid systems, for stables, riding facilities and events.

Building MaintenanceSite Preparation
View profile4(1)
A. Dachrückbau GmbH Logo

A. Dachrückbau GmbH 

Engelburg · Since 2024

The core activity of A. Dachrückbau GmbH is the professional dismantling and disposal of flat and pitched roofs, including related services such as waste management, protection and sealing, consulting and planning.

Site Preparation
View profile5(1)
Aktiengesellschaft Franz Murer Logo

Aktiengesellschaft Franz Murer 

Beckenried · Since 1958

Site Preparation
View profile1(1)
A. Meier Tiefbau AG Hirschthal Logo

A. Meier Tiefbau AG Hirschthal 

Hirschthal · Since 2016

The core activity of A. Meier Tiefbau AG is the provision of services in the field of civil engineering, particularly in the case of water pipe breaks and ruptures outside of buildings. This includes the location, repair and maintenance of pipelines as well as the organization and execution of coating and restoration work. The company offers its services 7 days a week, 24 hours a day and works with competent companies in doing so.

Civil EngineeringSite Preparation
View profile5(1)
AM Rückbau AG Logo

AM Rückbau AG 

Mühleberg · Since 2020

The core activity of AM Rückbau AG is the execution of controlled concrete demolition, drilling (core drilling) and cutting work in concrete or artificial stone, as well as demolition work of any dimension.

Site Preparation
View profile5(1)
Arcuri GmbH Logo

Arcuri GmbH 

Cham · Since 2002

Arcuri GmbH is a construction company offering concrete drilling, concrete milling, joint sealing and fire-protection penetration seals; it also provides various building services such as tiling, plastering and masonry for new construction, alterations and renovations.

Building MaintenanceSite PreparationFlooring & Tiling
View profile5(1)
ASR Service AG Logo

ASR Service AG 

Schaffhausen · Since 2014

The core activity of ASR Service AG is the detection, localization and removal of building pollutants such as asbestos, polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB) and other hazardous substances in buildings and construction sites. The company offers services such as risk analysis, diagnosis, remediation concepts, monitoring of remediation work and disposal of contaminated sites.

Building MaintenanceSite Preparation
View profile5(1)
A. & T. Vollenweider AG Logo

A. & T. Vollenweider AG 

Mettmenstetten · Since 2005

A. & T. Vollenweider AG is a construction company providing excavation, transport, demolition, stone-wall construction, sewer works and utility line installation. The family-run firm carries out projects for private clients, businesses and public authorities, using its own machinery and external partners.

Site Preparation
View profile5(1)
Bagger & Transporte Ritter AG Logo

Bagger & Transporte Ritter AG 

Eggiwil · Since 2013

The core activity of Bagger & Transporte Ritter AG encompasses civil engineering works, particularly: heavy transport of heavy machinery and excavators; crane work with a truck-mounted crane; environmental work such as embankment stones, walls and excavator work; winter services; landslide and watercourse construction; road construction, including forest roads, gravel roads and access roads; pipeline construction, including supply and disposal lines as well as sewage systems; and excavation and construction work. The company thus offers a wide range of services in the field of civil engineering and infrastructure.

Civil EngineeringSite Preparation
View profile1(1)
Basler Bau Logo

Basler Bau 

Rickenbach B. Wil · Since 2003

The core activity of Basler Bau is the execution of construction, renovation and refurbishment works.

Building MaintenanceSite PreparationMasonry Work
View profile5(1)
Baugeschäft Urs Lenzlinger AG Logo

Baugeschäft Urs Lenzlinger AG 

Gachnang · Since 2022

The core activity of Baugeschäft Urs Lenzlinger AG is the execution of construction projects, particularly renovations, conversions, and new buildings, as well as the provision of technical consulting and services in the field of construction. This specifically includes: conversions and renovations of old timber-framed houses and other buildings, customer-specific work such as bathroom conversions, kitchen conversions, office conversions, and renovations, new buildings and engineering planning, technical consulting and project engineering, and core drilling in various sizes. The company thus offers a wide range of construction-related services and has specialized in the revitalization of old structures and adaptation to today's quality standards.

Building ConstructionBuilding MaintenanceSite Preparation
View profile5(1)
bau hoch zwei ag Logo

bau hoch zwei ag 

Schönenberg Zh · Since 1995

The core activity of the company 'Bau Hoch Zwei AG' is civil engineering, particularly: demolition work, excavation, construction pit securing, utility line construction, transportation of materials such as gravel and concrete, recycling of building materials, and road construction. The company thus offers a wide range of services in the field of civil engineering.

Civil EngineeringSite Preparation
View profile5(1)
Bau-Leiser GmbH Logo

Bau-Leiser GmbH 

Wikon · Since 2010

The core activity of BAU-LEISER GmbH is the execution of conversions, renovation and environmental works in the following specific areas: masonry and plastering works, painting works, tile laying / flooring, demolition works, dry construction, environmental works, repair and assembly. The company thus offers a wide range of services in the field of construction and renovation.

Site PreparationMasonry Work
View profile5(1)
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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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