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

Site Preparation

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Matching companies

1'168 companies found

Müller Aarberg AG Logo

Müller Aarberg AG 

Aarberg · Since 2000

The core activity of Müller Aarberg AG is the construction and planning of high-rise buildings, civil engineering and road construction, conversions, as well as the provision of services in the field of sewer renovation, core drilling, tightness testing and sewer works.

Building ConstructionCivil EngineeringGeneral Contractors
View profile4.6(17)
Hermann Greminger Tiefbau AG Logo

Hermann Greminger Tiefbau AG 

Bussnang · Since 1991

The core activity of Hermann Greminger Tiefbau AG encompasses civil engineering and road construction work, including excavation and trenching, road construction, maintenance and repair, as well as logistics services such as transportation and maintenance of construction machinery and materials. Additionally, the company offers specialized services like suction dredging, trenchless technology, soil improvement and maintenance of slopes and waterfront areas.

Civil EngineeringSite Preparation
View profile4.8(16)
KBau.ch GmbH Logo

KBau.ch GmbH 

Fehraltorf · Since 2024

The core activity of KBau.ch GmbH is the provision of services in the construction sector, particularly: renovation and refurbishment of apartments and houses, new construction and extension of buildings, masonry, plastering, sewer and excavation work, gardening and landscaping, sanitary and electrical work, interior construction and renovation, kitchen and bathroom renovations, demolition and dismantling work. The company offers a comprehensive range of services, from planning to execution of construction projects.

Building ConstructionCivil EngineeringHorticulture & Landscaping
View profile4(16)
Loosli Bau AG Logo

Loosli Bau AG 

Schmiedrued · Since 2000

The core activity of Loosli Bau AG encompasses the areas of construction, civil engineering, transportation, suction dredging, metal construction, trough service and tightness testing. The company thus offers a wide range of services in the construction industry, from planning and execution of construction and civil engineering projects to specialized services such as suction dredging and metal construction.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile5(16)
Altermatt Aushub und Transporte AG Logo

Altermatt Aushub und Transporte AG 

Nunningen · Since 2000

The core activity of Altermatt Aushub und Transporte AG is the provision of services in the areas of excavation, civil engineering, transportation, and related works. Specifically, this includes: excavation and civil engineering work, pipe laying, environmental work, various works, pit service, transportation, and snow removal. The company thus offers a wide range of services required for the construction, maintenance, and upkeep of infrastructure and buildings.

Civil EngineeringSite Preparation
View profile5(15)
Eco Green GmbH Logo

Eco Green GmbH 

Regensdorf · Since 2017

Eco Green GmbH provides geothermal energy services, including project planning, heating-load calculations, ground probe (borehole) drilling and the installation and connection of systems to heat pumps. The company indicates it supplies certified drilling personnel and necessary operational fluids (e.g. antifreeze) as part of execution.

Site Preparation
View profile3.9(15)
Eco Green Schweiz AG Logo

Eco Green Schweiz AG 

Regensdorf · Since 2021

Eco Green Schweiz AG provides geothermal energy services, including heat-demand calculations, planning and execution of ground probe drilling, and the connection of systems to heat pumps.

Site Preparation
View profile3.9(15)
ER Construction Sàrl Logo

ER Construction Sàrl 

Gland · Since 2023

The core activity of ER Construction Sàrl is to provide services in the field of construction, particularly in the following areas: Demolition (safe and rapid demolition work), Construction (building solid and durable structures), Renovation (renovation and modernization of existing buildings), Masonry (masonry work for robust and aesthetic foundations), and Site preparation (preparing the land for construction). The company positions itself as a "general contractor" and offers its customers a comprehensive range of services for all phases of a construction project.

Building ConstructionBuilding MaintenanceSite Preparation
View profile5(15)
Ernst Höhener AG Logo

Ernst Höhener AG 

Obfelden · Since 2017

Ernst Höhener AG carries out excavation and civil earthworks, demolition and transport services. Their offerings include trench and excavation work, utility-line installation, site formation, demolition with recycling, various transport services and equipment rental with operators.

Site Preparation
View profile4.9(15)
Gass Dienstleistungen GmbH Logo

Gass Dienstleistungen GmbH 

Oltingen · Since 2019

The core activity of GASS Dienstleistungen GmbH is the provision of construction and environmental services, including the planning and execution of construction projects, as well as the provision of services in the field of construction economics. The company positions itself as a family business, focusing on the personal and individual implementation of its customers' wishes.

Building ConstructionCivil EngineeringSite Preparation
View profile4.7(15)
Riva Costruzioni SA Logo

Riva Costruzioni SA 

Tremona · Since 1990

The core activity of Riva Costruzioni SA is the construction and execution of building projects.

Building ConstructionBuilding MaintenanceSite Preparation
View profile4.4(15)
Willi Bau AG Logo

Willi Bau AG 

Rorschacherberg · Since 2005

Willi Bau AG is a construction company offering building and civil engineering services, including excavation, demolition, utility and road works. Its services also include system waterproofing with warranty and project work for commercial and public clients.

Site Preparation
View profile4.9(15)
Bauunternehmung Mettler & Tanner AG Logo

Bauunternehmung Mettler & Tanner AG 

Teufen Ar · Since 2010

The company's core activity is providing services in the construction industry, particularly in the areas of: building renovation and conversion, new building construction, sealing and plastering work, balcony renovation, static reinforcement, environmental design, and consulting and construction management. The company also offers specialized services such as core drilling and dust-free renovation.

Building ConstructionBuilding MaintenanceSite Preparation
View profile4.6(14)
Genossenschaft für ländliches Bauen des Kantons Uri (GLB Uri) Logo

Genossenschaft für ländliches Bauen des Kantons Uri (GLB Uri) 

Seedorf Ur · Since 1975

The core activity of GLB Uri includes the sale of building materials and agricultural supplies, the rental of construction equipment, and the provision of services in the field of civil engineering, including new constructions, conversions, renovations and environmental works.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile4.1(14)
Huber Leitungsbau AG Logo

Huber Leitungsbau AG 

Buttisholz · Since 1999

The core activity of Huber Leitungsbau GmbH is trenchless pipe laying, particularly the execution of flushing drilling, pressing drilling, pipe ramming, pipe bursting, cable plowing, trench milling and pipe welding for the laying of pipes and lines.

Site Preparation
View profile5(14)
Oberhänsli Bau AG Logo

Oberhänsli Bau AG 

Bütschwil · Since 2018

Oberhänsli Bau AG provides building-technology services including plant construction, installation, maintenance and renovation. The company website states that Hälg Group has taken over Oberhänsli AG Gebäudetechnik while the team and the site remain in place.

Site Preparation
View profile4.4(14)
Brusa Bauunternehmung AG Logo

Brusa Bauunternehmung AG 

Steinen · Since 2005

Brusa Bauunternehmung AG is a construction company offering building planning, structural and civil works, renovation, façade plastering and exterior site works, and managing real estate projects. The company provides both complete-project (total contractor) solutions and individual services.

Site Preparation
View profile4.6(13)
Brusa Planung AG Logo

Brusa Planung AG 

Steinen · Since 2012

Brusa Planung AG carries out planning tasks of all kinds and provides architectural planning services with a focus on residential construction, including single-family, two-family and multi-family houses. The company also acts as a general contractor, managing projects from concept to turnkey handover and offering fixed-price delivery.

General ContractorsSite Preparation
View profile4.6(13)
Dyabohr GmbH Logo

Dyabohr GmbH 

Mönthal · Since 2014

Dyabohr GmbH performs concrete cutting, core drilling, wire sawing, hydraulic concrete pressing and demolition with hydraulic pincers. The company also provides concrete milling, deconstruction services and project-related disposal.

Site Preparation
View profile4.4(13)
Eduard Meier AG Wettingen Logo

Eduard Meier AG Wettingen 

Wettingen · Since 1963

Eduard Meier AG Wettingen provides earthworks, demolition and civil/environmental construction services and undertakes project development. Services listed on the website include contaminated-site remediation, transport, material trading and water-construction/landscaping works.

Site Preparation
View profile4.8(13)
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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.
Per page
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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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