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

Site Preparation

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1'170 companies found

BCL Schweiz AG Logo

BCL Schweiz AG 

Glattpark (Opfikon) · Since 2011

The company's core activity is construction logistics, particularly consulting, planning and execution of logistical processes on construction sites to increase the productivity and safety of construction projects.

Site Preparation
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BD Freiamt GmbH Logo

BD Freiamt GmbH 

Villmergen · Since 2019

The core activity of BD Freiamt GmbH is the execution of specialized work in the field of concrete construction, particularly: Concrete drilling: Subsequent creation of breakthroughs, exploratory drilling and other openings in concrete walls using diamond core drilling technology. Concrete cutting: Precise separation of reinforced concrete, natural stone elements and other concrete structures using diamond-coated saw blades. Concrete demolition: Dismantling of entire buildings and partial structures in civil engineering and underground construction using diamond tools to enable dust-free and vibration-reduced demolition. The company offers these services with a focus on professional, precise and clean work as well as fair prices.

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Bercon Bau GmbH Logo

Bercon Bau GmbH 

Geuensee · Since 2017

The core activity of Bercon Bau is the provision of construction services, in particular: new buildings, renovations, drilling and milling, masonry work, planning and sealing. The company positions itself as a young and dynamic construction company available for every job.

Building ConstructionBuilding MaintenanceSite Preparation
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Bergamin Bau AG Logo

Bergamin Bau AG 

Lenzerheide/Lai · Since 2021

The core activity of Bergamin Bau AG is general construction, civil engineering and landscaping, including plastering, masonry and natural stone work, road and forecourt construction, embankments, ditches, sewage systems and utility lines.

Building ConstructionBuilding MaintenanceCivil Engineering
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Berner Umbauten GmbH Logo

Berner Umbauten GmbH 

Kehrsatz · Since 2022

The core activity of Berner Umbauten GmbH is the execution of construction and renovation work, in particular: masonry work, core drilling, conversions and renovations, water damage, wall and floor coverings, demolition and dismantling work, panel work, plastering work, painting work, excavation work, floor coverings, and sewer repairs. The company thus offers a comprehensive range of services in the construction industry.

Building MaintenanceSite Preparation
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Best Rückbau GmbH Logo

Best Rückbau GmbH 

Lupfig · Since 2021

The core activity of the company 'Best Rückbau & Demontagen GmbH' consists of carrying out dismantling and demolition work on buildings, particularly on office, retail and industrial spaces, as well as on kitchens, sanitary facilities and other installations. This also includes the disposal of materials, the clearance of storage rooms and the execution of relocations. The company offers a comprehensive range of services, from dismantling to demolition of individual or all built-in components.

Building MaintenanceSite Preparation
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Bettschen-Bau GmbH Logo

Bettschen-Bau GmbH 

Wengi B. Frutigen · Since 2022

Bettschen-Bau GmbH provides construction, exterior and forestry services. Services include building and civil engineering, renovations, excavation, road and pipeline construction, spring capture and blasting, as well as landscaping, garden construction, natural stone masonry, mulching, meadow clearing, clearance pruning and tree felling.

Site Preparation
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BG-Bau GmbH Logo

BG-Bau GmbH 

Kandersteg · Since 2009

The company's core activity is the provision of construction services, particularly in the areas of earthworks and masonry. This includes, among other things: Earthworks: excavation, grading, embankment construction, demolition, contaminated site remediation, utility line construction, stream engineering, renaturation, tunnel pre-cutting and road construction. Masonry work: general construction, concrete work, retaining walls, block and natural stone walls, as well as landscaping and gardening. The company also offers personnel leasing to support customers in the event of bottlenecks or large orders.

Building ConstructionCivil EngineeringHorticulture & Landscaping
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Bircher Produkte GmbH Logo

Bircher Produkte GmbH 

Boswil · Since 2009

The core activity of Bircher Tiefbau GmbH is the execution of civil engineering and excavation works, including: excavation works, grading works, stone walls, demolition works, sewerage, backfilling, gravel pits, and transportation. The company offers these services for various projects, including single-family and multi-family homes, and also rents out its machinery and specialized personnel to other companies.

Civil EngineeringSite Preparation
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Bissong Kameair GmbH Logo

Bissong Kameair GmbH 

Dietikon · Since 2009

Site Preparation
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Bitz travaux publics SA Logo

Bitz travaux publics SA 

Sion · Since 2009

Bitz travaux publics SA is a construction company providing earthworks, deconstruction/demolition, civil engineering, roadworks and utility installation. The company also carries out exterior landscaping and masonry tasks, river works and material treatment (crushing/recycling), and cooperates with affiliated firms for masonry, material processing and transport.

Site Preparation
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Bitz travaux publics SA, succursale de Sierre Logo

Bitz travaux publics SA, succursale de Sierre 

Noës · Since 2009

Bitz travaux publics SA, succursale de Sierre carries out public-works and earthmoving services, including deconstruction, civil engineering, exterior landscaping, material processing and river works.

Site Preparation
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Blättler, Alles rund um den Bau Logo

Blättler, Alles rund um den Bau 

Glis · Since 2004

The core activity of Blättler Bau is building and related services, in particular construction planning and execution, presumably with a focus on civil engineering and construction.

Site PreparationMasonry Work
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B. Odermatt Bagger und Umgebungsarbeiten Logo

B. Odermatt Bagger und Umgebungsarbeiten 

Goldau · Since 2017

B. Odermatt Bagger und Umgebungsarbeiten performs excavation and site works, including trenching for water, sewer and utility lines, earthmoving and levelling, wall construction, demolition and pipe installation.

Site PreparationMasonry Work
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Bohrmann GmbH Logo

Bohrmann GmbH 

Kaltbrunn · Since 2021

The core activity of Bohrmann company encompasses selective demolition services, in particular: diamond wire sawing, slab sawing, wall sawing, curb cutting, diamond core drilling, Brokk robot demolition, and surface preparation. Furthermore, the company also offers drilling services, such as: drilling of borehole pipes, vertical wall drilling, drilling in confined spaces, core drilling, wire-bound drilling, high-reach drilling, compaction injection, and packer placement of jointing compound. The company supports customers in the construction, industry, manufacturing, and power generation sectors in the execution of construction projects.

Site Preparation
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Bohr- und Baufix Baugeschäft GmbH Logo

Bohr- und Baufix Baugeschäft GmbH 

Herrenschwanden · Since 2004

Bohr- und Baufix Baugeschäft GmbH is a construction company providing masonry work, core drilling, concrete cutting, demolition and renovation services. It carries out drilling and milling on reinforced concrete and masonry and offers project support from planning through implementation.

Site Preparation
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Bolli Bau AG Logo

Bolli Bau AG 

Schaffhausen · Since 2015

The company's core activity is the execution of construction work, including new buildings of all kinds, renovations of old properties and facades, renovation, conversion, drilling and scaffolding work.

Building ConstructionCivil EngineeringSite Preparation
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Borner AG Baudienstleistungen Logo

Borner AG Baudienstleistungen 

Frauenfeld · Since 2014

The core activity of Borner AG Baudienstleistungen encompasses the provision of construction services, in particular: planning and implementation of construction projects, drilling and cutting of concrete, conception of escape route, rescue route and zone plans, installation and dismantling of shop fittings, and escape route signage. The company thus offers a wide range of services in the field of construction and construction planning.

Site Preparation
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Boxler Bau GmbH Logo

Boxler Bau GmbH 

Rapperswil Sg · Since 2009

The core activity of Boxler Bau GmbH is the execution of renovations, restorations, refurbishments, conversions, facade renovations, floor slab work and garden design.

Building ConstructionBuilding MaintenanceSite Preparation
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BRB BETONRÜCKBAU AG Logo

BRB BETONRÜCKBAU AG 

Frauenkappelen · Since 2001

The core activity of BRB-Betonrückbau AG is the execution of concrete demolition and processing work, including drilling, cutting, pressing and breaking of concrete, as well as the demolition of concrete structures.

General ContractorsSite Preparation
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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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