Building Construction

Kolly Construction SA 

Le Mouret · Since 1990

Lustenberger Plinthes 

Malters · Since 2017

BEREUTER BAU AG 

Volketswil · Since 2009

BEREUTER BAU AG is a construction company within the Bereuter Group that carries out building construction projects. Its services include residential buildings, infrastructure works, industrial buildings and office/commercial buildings.

Hausgebaut AG 

Suhr · Since 2022

The core activity of Home Expo Suhr is to operate an exhibition of model homes, where customers can visit and view various prefabricated houses from different providers (such as Hanse Haus, Swissbau, SchwörerHaus, Lehner Holzhaus, Weberhaus and Bodenseehaus) and receive advice from specialist consultants.

Methabau Gruppe AG 

Hefenhofen · Since 2014

Methabau Gruppe AG is a construction company that develops, plans and delivers multi-storey commercial and industrial buildings with a high degree of prefabrication. As a general contractor it provides project development, construction management, BIM-based planning, in-house production (metal, sheet and timber), construction execution, maintenance and property management.

Marti AG Bern, Moosseedorf 

Moosseedorf · Since 1951

Marti AG Bern, Moosseedorf is a construction company providing building and civil engineering, infrastructure construction, and specialist deep‑foundation services. The company executes construction projects and operates under ISO‑certified management systems.

AQUA & TECH SARL 

Geneva · Since 2024

The core activity of AQUA & TECH is the provision of services in the field of sanitary, heating, ventilation and air conditioning systems, including installation, repair, maintenance and emergency services.

Vanoli AG Zofingen 

Zofingen · Since 1969

Vanoli AG Zofingen is a construction company providing building production and specialist services for rail and civil engineering projects. Its offerings include rail infrastructure and track construction, structural/engineering works, microtunneling, geomatics and surveying, project management and total/general contracting services.

Mathias Bellwald Aktiengesellschaft 

Glis · Since 1985

Mathias Bellwald Aktiengesellschaft is a general contractor focused on renovations and refurbishments, providing services for new construction, conversions, structural and civil engineering, and concrete and monument restoration. The company also offers tile and natural stone installations, asbestos and pollutant remediation, transport and recycling, and vehicle-technology services.

Rampini & Cie SA 

Vernier · Since 1985

Rampini & Cie SA is a construction company specialising in building, civil engineering and renovation projects. Its services include structural work, demolition, earthworks and special foundations, watercourse and lakeshore works, sewer and buried-utility networks, roads and infrastructure, and external landscaping. The company operates an integrated management system (Ramp'QSE) certified to ISO 9001, ISO 45001 and ISO 14001.

Aregger AG 

Eschenbach Lu · Since 2023

Aregger AG is a construction company offering deconstruction and contaminated-site remediation, civil engineering, building construction, and services related to circular economy and real estate. The firm operates as a full-service provider in the construction sector and carries out individual or combined project scopes.

Aregger AG Bauunternehmung 

Buttisholz · Since 1976

Aregger AG Bauunternehmung performs demolition and contaminated-site remediation, carries out civil engineering and building-construction work, and provides circular-economy services and real-estate management.

Marti AG, Bauunternehmung 

Zurich · Since 1995

Marti AG, Bauunternehmung carries out building and civil engineering projects as well as renovations, maintenance and turnkey services for private and public clients. Its services include architectural construction, infrastructure and specialist deep foundation works, building protection and surfacing technologies, with BIM-supported execution.

Toni Seiler Baugeschäft AG 

Oberwil Bl · Since 2024

The core activity of Toni Seiler Baugeschäft AG is the provision of services in the field of building construction, civil engineering and environmental design, including: Building construction: extensions, renovations, conversions, additions, concrete work, swimming pool and pool construction; Civil engineering: road construction, pipeline construction, utility lines, sewerage, trenching, water pipe rupture, directional drilling; Environmental design: design of seating areas, terraces, forecourts, natural stone work, garden swimming pools; Customer masonry: conversions, renovations, wall demolition, steel beams, CFRP laminates for bathroom and kitchen. The company thus offers comprehensive services for construction projects from planning to execution.

Signia Bauunternehmen GmbH 

Dietlikon · Since 2021

The company's core activity is the provision of construction services as a general contractor, including planning, management and execution of construction projects, such as new buildings, conversions, renovations, demolition, dismantling, painting and plastering, flooring, sanitary installations and scaffolding.

Estermann AG 

Zofingen · Since 2006

Estermann AG is a construction company providing residential, industrial and commercial building, civil engineering and renovation services. Its offering includes project execution, exposed concrete and masonry work, and turnkey construction; the Estermann Baugruppe also comprises real estate development and plastering specialists to enable integrated project delivery.

Estermann AG 

Geuensee · Since 2004

Estermann AG offers services in real estate development, general contracting and plastering. The company manages projects from development, planning and construction through to handover, delivering residential, commercial and investment buildings as well as façade and interior finishing works.

Estermann Baumanagement GmbH 

Geuensee · Since 2003

Estermann Baumanagement GmbH provides services in construction and real estate development; the Estermann Baugruppe website lists offerings such as residential construction, industrial and commercial buildings, exposed concrete and civil engineering, as well as renovations and restorations.

Prologis S.à r.l. 

Oron-La-Ville · Since 1997

Prologis S.à r.l. is a general construction company for residential buildings, delivering turnkey single-family homes, multi-unit buildings, neighborhood developments and renovation projects. Services include project budgeting and financing support, architectural and material advice, construction supervision, and related services such as real-estate brokerage and land valorization.

Xaver Meyer AG 

Villmergen · Since 2015

Xaver Meyer AG is a construction company providing architectural and general contracting services, including renovations and façade work. Its activities also include production of prefabricated concrete elements (element construction), garden/landscaping services and real estate brokerage and property management.

Galli Gesamtleistungen AG 

Zuchwil · Since 2023

Galli Gesamtleistungen AG provides total-contractor and turnkey construction services, taking on project management, coordination between planning and execution, and time and cost control. Services include client advisory, construction documentation and technical/economic coordination for residential, industrial/commercial, public and infrastructure projects.

Galli Hoch- und Tiefbau AG 

Zuchwil · Since 1993

Galli Hoch- und Tiefbau AG is a construction company carrying out building and civil engineering projects and providing services such as building maintenance, structural protection and remediation of construction-related pollutants. Services include new construction, renovations and demolitions, excavation and trenchless pipeline installation, site development and road surfacing, as well as comprehensive project delivery.

Galli Schadstoffe AG 

Zuchwil · Since 2016

Galli Schadstoffe AG is a Suva-recognised remediation company that identifies and removes asbestos and other building pollutants and prepares remediation concepts. Its services include material analyses, reporting to Suva, containment of work zones, demolition and removal of contaminated materials, measurement and control during works, compliant disposal and final cleaning.

Leuthard Bau AG 

Merenschwand · Since 1999

Leuthard Bau AG is a construction and real estate services company offering property project development, marketing and overall development services. Its activities include building works, civil and road construction and façade construction, plus project-related services. The company uses BIM and digital technologies for model-based planning and execution.

Wirz AG Bauunternehmung 

Bern · Since 2003

Wirz AG Bauunternehmung is a construction company providing general construction services, including concrete and masonry works, demolition and renovation for residential and commercial projects.

MCO Baudienstleistungen AG 

Since 2013

MCO Baudienstleistungen AG is a real estate company that acts as a developer and project manager, handling the planning, realization and sale of residential projects and offering property acquisition and advisory services together with partner firms.

Maulini SA 

Satigny · Since 1994

Bähler Bau AG 

Illnau · Since 2022

The core activity of Bähler Bau AG is the implementation of construction projects, particularly in the areas of facade renovation, energetic refurbishment, roof renovation, facade insulation, window replacement, heating and ventilation, as well as photovoltaic systems. The company offers competent consulting and comprehensive services from a single source, from planning to execution.

Notter Hochbau AG 

Wohlen Ag · Since 1980

Notter Hochbau AG is a company that executes building projects, carrying out residential construction, public buildings, industrial and commercial buildings, and engineering structures. The company coordinates the construction process to meet economic and technical requirements and provides services for private clients, companies, architects and general contractors.

Bächler Bau GmbH 

Bünzen · Since 2020

The core activity of Bächler Bau GmbH is the provision of services in the field of construction, particularly in the areas of new construction, renovation, refurbishment and core drilling.

Ridis Generalunternehmung GmbH 

Kaiseraugst · Since 2022

The core activity of RIDIS GmbH is the provision of services in the construction industry, particularly in the areas of: * Painting work (façades, walls, ceilings, wood) * Plastering work (rendering, smooth surfaces) * Façade renovation (protection and aesthetic enhancement of properties) * Scaffolding construction * Flooring (installation of laminate, parquet, vinyl, etc.) * Drywall construction (room design with partition walls and ceiling cladding) The company offers these services to private and commercial customers and accompanies construction projects from the initial idea to completion.

solHaus AG 

Lohn-Ammannsegg · Since 2013

The core activity of solHaus AG is the planning and execution of construction projects, including architecture, construction management and real estate management.

Zindel United Verwaltungs AG 

Maienfeld · Since 2005

Zindel United Verwaltungs AG is a corporate group in the construction and services sector providing end-to-end solutions from project development and planning to execution, building materials and logistics. The company follows circular-economy principles and offers services such as material recycling, transport logistics, demolition and, according to the website, CO₂-neutral concrete.

Cäsar Bay AG 

Konolfingen · Since 1995

Cäsar Bay AG is a construction company providing building and civil engineering works, renovation and refurbishment, and hazardous‑substance remediation (e.g. asbestos, PCB), together with specialist services such as structural strip‑outs, demolitions, pipe jacking, backfilling and an emergency response service.

Gebr. Jetzer Hoch- und Tiefbau AG 

Schnottwil · Since 1996

The core activity of Gebr. Jetzer AG encompasses various services in the construction sector, particularly: earthworks, road construction, pipeline and drainage construction, hydraulic engineering, water supply, transportation and muck-away services, excavator taxi and suction excavator services. Thus, the company offers a wide range of services in the fields of civil engineering and construction.

Epiney Construction SA 

Sierre · Since 2012

The core activity of Epiney Construction SA is the provision of services in the field of construction and engineering, particularly in the areas of: civil engineering (e.g. road construction, bridge construction, sewerage), building construction, and special works. The company offers a wide range of services, including planning, execution and management of construction projects, with a focus on quality, safety, scheduling and cost planning, as well as sustainability.

Gehrig AG Bauunternehmung Wil 

Wil Sg · Since 2000

Gehrig AG Bauunternehmung Wil is a construction company that performs building and civil engineering works as well as conversions, renovations and refurbishments. It undertakes residential and commercial projects including single-family and multi-family buildings, industrial and commercial structures, executes excavation and sewer works, and carries out individual client assignments and general contracting mandates.

Rofra Bau AG 

Aesch Bl · Since 2010

The core activity of ROFRA encompasses the following areas: construction, civil engineering, renovation, hazardous substance remediation, construction management, real estate development, and rental and sale of residential and commercial properties. The company provides comprehensive services in key areas of the construction industry and develops innovative residential and commercial projects.

Kronenberg Hoch- und Tiefbau AG 

Wikon · Since 2005

The core activity of Kronenberg Hoch- und Tiefbau AG encompasses the execution of construction and civil engineering works, including: building construction (high-rise construction), sewer construction, road construction and pipeline construction (civil engineering), renovation and extension work, environmental work (e.g. garden design, seating areas, parking lots), customer masonry work (e.g. creating overpasses, enlarging windows and doors, concrete renovations), asphalt work and excavation work for geothermal heating systems, and the installation of rainwater tanks. The company also offers supporting services such as site investigations, coordination of trades and planning of renovation and extension projects.

Ramseier Bauunternehmung AG 

Bern · Since 1997

Ramseier Bauunternehmung AG is a construction company offering new-build, renovation and restoration services, including façade construction, timber construction, insulation, plastering, roofing and photovoltaic installations. The company provides consulting through execution for private and institutional clients and collaborates with architects and engineers on energy-efficient and heritage restoration projects.

Studer Bautechnik AG 

Härkingen · Since 1989

Studer Bautechnik AG provides building and civil engineering services, including structural construction, earthworks and utility/line installation. The company also offers masonry and renovation work, site development and related construction services.

Studer Infrastruktur AG 

Härkingen · Since 2016

Studer Infrastruktur AG is a construction company that carries out building projects and provides project-related services such as site management, cost estimation and execution. The firm emphasizes craftsmanship, sustainable building and practical, economic solutions for clients during planning and implementation.

Eberhard Bau AG 

Kloten · Since 1987

Eberhard Bau AG provides construction services in civil engineering, demolition, contaminated-site remediation, construction-material recycling, building-material production and landfill management. The company operates a service centre, a construction-material recycling centre and a processing facility for construction waste, and offers logistics and material-supply services.

Eberhard Holding AG 

Kloten · Since 2003

Eberhard Holding AG is the parent company of the Eberhard Unternehmungen and manages the group's subsidiaries. It is 100% family-owned.

Michu Witschi GmbH 

Wolfenschiessen · Since 2025

Montana Bausysteme AG 

Villmergen · Since 1963

Montana Bausysteme AG provides complete solutions for metal facades, roofs and ceilings. The company manufactures trapezoidal, corrugated and cladding profiles, liner trays, composite profiles and sandwich panels in steel and aluminium, and supports industrial, commercial/administrative and public building projects from documentation through production, logistics and delivery.

Witschi AG 

Langenthal · Since 2020

Witschi AG is a construction company providing services in building construction, civil and road engineering, renovation and construction management. Its services include industrial construction and concrete works, floor and surface systems (including resin coatings), pipeline and trenchless installation, excavation, transport and waste disposal, plus a 24-hour emergency construction service (Witschi24).

Farmwood SA 

Payerne · Since 2000

Farmwood SA is primarily engaged in the management and administration of real estate, particularly in the areas of agriculture, industry, sports and equestrian sports. The company's core activity includes the management of agricultural farms, industrial facilities, sports facilities and equestrian centers, as well as the implementation of construction projects and renovations in these areas.

Idealbau AG 

Bützberg · Since 1966

The core activity of Idealbau Architektur AG is the planning, construction and renovation of individual single-family homes, multi-family homes and real estate projects, with a focus on sustainable and natural building materials as well as turnkey solutions at a fixed price.

J.F. Jost Bau AG 

Schlieren · Since 1975

J.F. Jost Bau AG is a construction and real estate company that supports the full life cycle of residential and commercial properties, from development and realization to ongoing property management. Services include renovations and conversions, façade and concrete repairs, waterproofing/coatings, construction management, and rental and sales of properties.