Site Preparation

Fortisbau AG 

Neunkirch · Since 2021

The core activity of Fortisbau AG encompasses the provision of construction services in various areas, particularly: new buildings, renovations and conversion work, industrial buildings, agricultural buildings, customer-specific work, retaining walls, reinforced concrete and foundation work, core drilling, forecourts, monolithic concrete, sewerage and pipeline construction. The company thus offers a wide range of construction services, from new buildings to renovations and specialized work.

François Donzé, Génie Civil et Construction S.A. 

Courgenay · Since 2004

The company François Donzé Génie civil et Construction SA is primarily active in the construction and infrastructure sector. The core activities include: public works, general civil engineering, road construction, asphalt and concrete road surfacing, watercourse development, reinforced concrete and masonry works, industrial piping, industrial zones and subdivisions, demolition works, and material recycling. The company also offers services to private clients, such as: exterior landscaping, masonry and reinforced concrete, piping, curbs and paving, excavation and backfilling, soil improvement, and slope stabilization. The company has a modern machine fleet and its own center for processing and utilizing mineral waste.

Füllemann & Ciancio GmbH 

Steckborn · Since 2020

The core activity of Füllemann & Ciancio GmbH includes: construction and civil engineering works, waste disposal and recycling, sale of small containers, waste collection and disposal, gardening and environmental services, excavator rental and equipment, transportation and fleet services, skip and container services, crane and deep excavation works. The company thus offers a wide range of services in the fields of construction, waste management and gardening.

Gebr. Grünenfelder AG, Bauunternehmung, Wangs 

Wangs · Since 1977

The core activity of Gebrüder Grünenfelder Bauunternehmung is construction and civil engineering, particularly in the areas of construction, winter services and surveying. The company offers services such as building, renovation and refurbishment of buildings as well as civil engineering works.

Gebr. Kühnis AG, Widnau 

Widnau · Since 1972

The core activity of Gebr. Kühnis AG is the execution of civil engineering and construction work. Specifically, this includes pipeline construction, excavation, environmental work, earthwork, construction of forecourts, as well as the realization of high-rise buildings such as single-family homes, residential buildings, office and industrial buildings.

Gebrüder Mahler AG 

Niederuzwil · Since 1992

The company is a family-owned business in the construction industry, specializing in master builder services and comprehensive construction solutions. The core activities include: master builder services (new construction, renovation, refurbishment), comprehensive construction solutions (planning, project development, construction management, environmental work), consulting and accompanying customers in construction projects, and executing construction projects with its own team and partners. Thus, the company offers comprehensive services in the field of construction, from planning to execution of construction projects.

Gebrüder Vogelsang AG 

Tegerfelden · Since 2022

The core activity of Gebrüder Vogelsang AG encompasses a wide range of services in the construction industry, including: High and low-rise construction (masonry, earthworks, etc.), Building technology (plumbing, heating, ventilation, air conditioning, electrical installations), Renovations and conversions, Landscaping and greenhouses, Weed control, Special services (core drilling, concrete cutting, sealing, winter services, paving works). The company thus offers a comprehensive range of construction and craft services and positions itself as a 'one-stop-shop' provider.

Germann Tiefbau GmbH 

Winden · Since 2005

The core activity of Germann Tiefbau GmbH is civil engineering and road construction, including specific services such as excavation, sewerage, environmental engineering, road construction, recycling, hydraulic engineering and retention.

Ghelma AG Spezialtiefbau 

Meiringen · Since 2004

The core activity of Ghelma AG Spezialtiefbau encompasses the planning and execution of special deep foundation projects, including: * excavation pit securing (nailing walls, raking walls, pile walls, tie-backs) * pile foundations (in-situ concrete piles, displacement piles, micro-piles) * special drilling (filter wells, drainage drilling, contaminated site remediation, exploratory drilling) * protective structures (rockfall protection, landslide protection, rock face securing, flood protection, protective scaffolding) * embankment stabilization (jet grouting, high-pressure injections, low-pressure injections) The company offers innovative and customized solutions for complex construction projects and has its own research and development department as well as a workshop for the manufacture of specialized equipment.

Greub AG 

Zeihen · Since 1969

The core activity of Greub AG is construction, particularly the planning and execution of new buildings, conversions and environmental works, as well as the renovation of residential and commercial buildings. This also includes specialized services such as core drilling and pressure testing.

Grünig Bau AG 

Däniken So · Since 1984

The core activity of Grünig Bau AG is the provision of construction and masonry services, including new builds, renovations, masonry work and repair contracts.

Guido Cerini & Cie, succursale des Bois 

Les Bois · Since 1998

Guido Cerini & Cie, succursale des Bois is a construction and civil engineering firm providing masonry, earthworks, reinforced concrete and building renovation services. Its services include excavations and foundations, demolition, installation of pipelines and paving, as well as concrete-related works.

HERZOG Holzbau AG 

Stettlen · Since 2002

The core activity of HERZOG Bau und Holzbau AG is the provision of services in the construction industry, particularly in the areas of building, carpentry and joinery. The company offers solutions for new construction, renovation and refurbishment, and emphasizes the importance of quality, flexibility and environmentally conscious building.

H. Ringgenberg, Belp AG 

Belp · Since 1963

H. Ringgenberg, Belp AG carries out demolition and deconstruction, excavation, earthworks, transport services and container (skip) services. The company's website lists contact details including an e‑mail address for inquiries.

Immobat Construction SA 

Versoix · Since 2011

Immobat Construction SA is a construction company operating as a general contractor for new builds and renovation projects. Its services include civil engineering and structural concrete work, road and earthworks, and telecommunications installations such as cable pulling and ducting.

Jenny Bau & Forst GmbH 

Niederbipp · Since 2019

The core activity of JENNY Bau & Forst encompasses various services in the following areas: Transport and Waste Management, Construction and Earthworks, Material Processing, Maintenance and Repair, Forestry, and Blasting Technology. Thus, the company offers a wide range of services in the fields of construction, forestry, and infrastructure.

JFD MACONNERIE SARL 

Matran · Since 2022

The core activity of JFD Maçonnerie is the provision of services in the field of masonry, including: new construction and renovation of houses, renovations of houses from basement to roof, transformations and adaptations of existing buildings, sanitation of buildings, and consulting and planning of construction projects. The company thus offers comprehensive services in the construction industry, from planning to execution.

Johann Loher AG, Montlingen 

Montlingen · Since 1973

The core activity of Joh. Loher AG is construction, including planning and implementation of construction projects, plastering work, renovations and comprehensive solutions for customers.

Kambohr AG 

Flaach · Since 1999

Kambohr AG is a demolition contractor offering concrete drilling and concrete milling services. Their work includes creating door and window openings in walls, removing concrete balconies, and milling and disposing of entire walls.

Kolly AG 

Vinelz · Since 1975

Kolly AG is a construction company that provides building and civil engineering services, including single- and multi-family houses, renovations and demolitions, as well as utility installation, sewer and road construction.