Construction & Architecture

Duss Küchen AG 

Emmenbrücke · Since 1999

The core activity of Duss Küchen AG is the manufacture and assembly of kitchens, furniture, doors, cabinets and interior fittings. The company also offers planning and consulting services and has its own production and carpentry service.

Eberhard AG 

Rheinfelden · Since 1984

Eberhard AG provides construction and environmental services, including civil engineering, demolition, and contaminated-site remediation, together with logistics and suction-technology services. The company also produces and processes building materials such as concrete and aggregates, including recycled materials, and offers transport and disposal services.

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.

Fuhrer AG Gartenbau 

Wichtrach · Since 1987

The core activity of Fuhrer AG Gartenbau is the planning, design, maintenance and preservation of gardens, roof gardens and landscape structures. The company offers services such as garden design, garden maintenance, landscape construction and roof gardens, and has a team of experts, including master gardeners, landscape architects and construction managers.

Gärtner Jonas Ovenstone - Natürlich 

Thalheim An Der Thur · Since 2018

Gärtner Jonas Ovenstone - Natürlich provides garden planning, design and maintenance services, and designs and constructs pools including chemical-free stainless-steel and natural pool systems with associated filtration and accessories.

Gilg AG 

Niederurnen · Since 1992

The core activity of Gilg AG encompasses crane work and transportation, particularly in the metal and glass construction sector. This includes, among other things: crane assembly and crane transportation with crane tractors and semi-trailers/tandem trailers, glass construction work, including complex glass construction and glass replacement, transportation and installation of heavy and bulky loads, such as concrete pools, and the use of crawler cranes, mini cranes, and self-propelled aerial work platforms for various applications. The company also offers specialized services such as precision work and meticulous planning for complex assembly concepts.

Hector Egger Gesamtdienstleistung AG 

Langenthal · Since 2018

Hector Egger Gesamtdienstleistung AG is a full-service provider in building construction and real estate. It accompanies and delivers projects of various sizes for private clients and institutional investors, offering planning, coordination, site logistics and advisory services with a focus on timber and element construction. The company integrates stakeholders (clients, architects, planners, trades) to coordinate workflows and resolve issues.

Hector Egger Holzbau AG 

Langenthal · Since 2001

Hector Egger Holzbau AG is a timber construction company specializing in high‑tech timber construction, providing planning, design, production and execution of projects ranging from single‑family homes to industrial halls and aircraft hangars. The company manufactures prefabricated timber elements, uses CNC-based production and coordinates logistics, production and on‑site assembly.

Karl Rölli Holzbau, Bedachung & Spenglerei AG 

Pfaffnau · Since 2024

Karl Rölli Holzbau, Bedachung & Spenglerei AG is a construction company providing timber construction, roofing and metal-sheet (spengler) services. The company handles planning, prefabrication using 3D‑CAD and CNC production, and carries out building envelopes, new builds, renovations and maintenance for architects and private clients.

LEKI Haustechnik GmbH 

Neuhausen Am Rheinfall · Since 2006

The core activity of Leki Haustechnik is the planning and execution of heating and sanitary systems, including the associated service and maintenance work, as well as the installation and maintenance of solar systems.

Lindauer AG 

Steinen · Since 1995

The Lindauer AG company primarily focuses on the manufacture and distribution of high-quality furniture and interior fittings, particularly kitchens, carpentry work, and furniture design. The core activity encompasses the planning, production, and assembly of individual pieces of furniture and interior fittings using sustainable materials such as solid wood and renewable energy. Additionally, the company offers comprehensive services including consulting, planning, installation, and after-sales service.

Losinger Marazzi AG 

Basel · Since 2011

Losinger Marazzi AG develops and delivers sustainable living and working spaces as well as infrastructure projects, providing services across the entire real estate value chain. The company’s services include project development, construction execution, renovation and the realization of hospital and industrial buildings.

Losinger Marazzi AG 

Zurich · Since 2004

Losinger Marazzi AG develops and constructs residential, office and industrial buildings as well as neighbourhoods, managing projects across the entire real-estate value chain from development to operation. The company provides planning and construction services with a focus on sustainable building, climate resilience and urban renewal.

Losinger Marazzi SA 

Fribourg · Since 2011

Losinger Marazzi SA develops and delivers real estate and site-development projects, providing project development, construction and lifecycle services. Its activities include sustainable building practices, climate resilience, timber construction and facility/property management for residential, industrial and healthcare buildings.

Losinger Marazzi AG 

Lucerne · Since 2012

Losinger Marazzi AG develops and delivers real estate projects and construction works, including sustainable districts, residential buildings, renovations, and hospital and industrial facilities. The company provides services across the property value chain from project conception to building operation and incorporates sustainability and climate-resilience measures in its projects.

Losinger Marazzi AG 

Bern · Since 1972

Losinger Marazzi AG develops and delivers real estate and construction projects, providing services across the asset lifecycle from concept to operation, including residential and district development, hospital and industrial buildings, and renovation works.

Losinger Marazzi SA 

Satigny · Since 2011

Losinger Marazzi SA is a construction and real estate firm that develops, constructs and operates buildings and urban districts. It provides project and site development, construction execution and facility/property management services, with lifecycle-oriented and sustainability measures integrated into its projects.

Losinger Marazzi SA 

Plan-Les-Ouates · Since 2011

Losinger Marazzi SA is a construction and real estate services company that plans and delivers projects from development through construction to the operation and maintenance of buildings and sites. Its services include project and site development, construction of residential, industrial and hospital buildings, and facility/property management with an emphasis on sustainability and lifecycle approaches.

Losinger Marazzi SA 

Crissier · Since 2011

Losinger Marazzi SA develops and delivers real estate projects and provides services across the entire property value chain, including neighbourhood development, residential construction, renovations, and hospital and industrial building projects.

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.

NSNW AG 

Sissach · Since 2008

The company NSNW is primarily active in the field of motorway management and operation. The core activities include the planning, construction and maintenance of motorways, as well as ensuring a smooth flow of traffic. This also includes services such as data management, project planning and the coordination of construction sites.

Ovenstone AG, Gärten und Pools 

Kleinandelfingen · Since 2009

The core activity of Ovenstone AG is the planning, design and maintenance of gardens and pools, including the construction of natural stone installations, water gardens, stone gardens, gazebos, pavilions and pergolas, as well as the maintenance of lawns, trees and shrubs. The company also offers chemical-free pools, film pools, prefabricated pools, natural stone pools and stainless steel pools, and implements projects in the field of garden and pool construction.

Piasio SA 

La Croix-De-Rozon · Since 1961

The core activity of PIASIO HTP is to provide services and solutions in the field of civil engineering, particularly in the areas of: excavation work, soil and groundwater remediation, underground and surface work, material valorization, and excavation, demolition and special works. The company also offers a 24/7 emergency service for all types of sewer and network work.

planerkiste architektur gmbh 

Aarau · Since 2019

The core activity of the company "planerkiste architektur" is the provision of architectural and construction planning services, including construction management and site supervision, for new buildings, renovations and conversions in the areas of residential, commercial, industrial and public construction. The company also offers consulting and support services for real estate buyers and sellers, including purchase advice, valuation and brokerage.

Rölli Gruppe AG 

Pfaffnau · Since 2022

Rölli Gruppe AG is a construction company offering consulting, planning and execution for building extensions, renovations, conversions and densification projects. The group specialises in timber system construction and complete building envelopes, including roofing and sheet-metal work, and cooperates with architects and clients on new and existing buildings.

Rotomag AG 

Sargans · Since 2004

The core activity of Käppeli Bau AG is the provision of services in the construction industry, particularly in the areas of: * Building construction (e.g. new construction, renovation, and refurbishment of buildings) * Civil engineering (e.g. earthworks, engineering construction, and hydraulic engineering) * Road construction (e.g. construction and maintenance of roads and bridges) * Asphalt paving, paving, planing, and repair work. The company also offers specialized services such as interior demolition, industrial and commercial construction, environmental design, and residential construction.

Rudolf Werkhof AG 

Sommeri · Since 2015

The core activity of Rudolf Spielplatz AG is the planning, delivery, installation and maintenance of playground equipment and playgrounds, including theme playgrounds and gymnastics and movement equipment, for public and private institutions.

Rust Fenster Service GmbH 

Zufikon · Since 2021

The core activity of Rust Fenster Service GmbH is the consulting, sales, installation and servicing of windows, doors, insect screens and glass products, particularly in the area of replacement and modernization of windows and doors for residential and commercial buildings.

Scheuchzer SA 

Bussigny · Since 1947

Scheuchzer SA provides rail infrastructure services including rail grinding, maintenance, refurbishment, ballast stabilization and reinforcement systems, and small-scale upkeep. The company plans, coordinates and executes railway-technical projects as a general contractor and offers engineering, development, workshop and repair services.

Schindler Gärten GmbH 

Lucerne · Since 2018

The company's core activity is garden and landscape construction, including the planning, design, creation and maintenance of gardens, terraces, parks and other green spaces. Specific services include: garden construction and design, terrace construction and equipment, landscape construction and maintenance, green space management, maintenance of existing gardens and facilities, renovation and expansion of gardens and facilities, earthworks, natural stone walls, staircase construction, slope stabilization, water features and irrigation and drainage systems.

S. Facchinetti S.A. 

Neuchâtel · Since 1969

S. Facchinetti S.A. is a construction company providing civil engineering and infrastructure services such as road and rail works, asphalt surfacing, utilities and urban development. The company also operates the 'Les Ateliers de la Cernia' natural stone department for stone processing and heritage restoration and runs quarry and recycling operations supplying aggregates and gabions.

Vision+ Generalbauunternehmung GmbH 

Leuggern · Since 2023

Vision+ Generalbauunternehmung GmbH is a general construction company that plans and executes new-build, renovation and refurbishment projects. Services include masonry, bespoke kitchens and windows, pool and whirlpool construction, waterproofing, core drilling, wall and floor works, as well as planning, site management and project coordination.

Wechsler Gerhard AG 

Luthern · Since 2018

The core activity of Wechsler Gerhard AG includes cabling, particularly the expansion of fibre optic networks, as well as the execution of excavation work, water supply, landscape maintenance and the sale of small engine equipment.

Westphal Paysagiste 

Avenches · Since 2022

The core activity of Westphal Paysagiste is the provision of gardening and landscape maintenance services, including: garden design and construction, lawn and green space maintenance, installation of garden ponds and drainage systems, installation of fences and gates, construction of terraces and parking areas, and the sale of fence and terrace materials. The company thus offers a comprehensive range of services for the design and maintenance of gardens and outdoor spaces.

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).

Witschi Baumanagement AG 

Langenthal · Since 1969

Witschi Baumanagement AG manages, coordinates and executes construction projects of all types. Acting as a total and general contractor, it provides feasibility studies, needs assessments, concept development, cost estimates, project execution, financing and investor contacts, and collaborates with external partners for planning services.

Zubler AG 

Hunzenschwil · Since 2014

Zubler AG is a construction company providing timber construction and carpentry, structural building works and renovation services. Its offerings also include construction management, façade and foundation work, static reinforcement and prefabricated element production.

Zubler AG 

Aarau · Since 2024

Zubler AG is a construction company offering timber construction and carpentry, building and civil engineering works, and renovation services. Its offerings include façade construction, masonry and concrete work, structural reinforcement and construction management services such as preliminary design, cost estimation, visualization and site supervision.

ALVAZZI GROUPE SA, succursale de Delémont 

Delémont · Since 2013

ALVAZZI GROUPE SA, succursale de Delémont provides services in heating and cooling, ventilation and air conditioning, measurement‑control‑regulation (MCR), sanitary installations, electrical and building automation, maintenance and energy management including renewable energy solutions.

ALVAZZI GROUPE SA, succursale de Plan-les-Ouates-Genève 

Plan-Les-Ouates · Since 2017

ALVAZZI GROUPE SA, succursale de Plan-les-Ouates-Genève provides technical building services and multitechnical maintenance. Its offerings include heating and cooling, ventilation and air conditioning, measurement and control systems, sanitary and electrical installations, building automation and energy management.

ALVAZZI GROUPE SA, succursale d'Yverdon-les-Bains 

Yverdon-Les-Bains · Since 2021

ALVAZZI GROUPE SA, succursale d'Yverdon-les-Bains provides technical building services including design, installation and maintenance for heating, ventilation, air conditioning and sanitary systems as well as measurement, control and regulation. The branch also delivers electrical and telematics work, building automation, multitechnical maintenance and energy management services.

Alves Design GmbH 

Wallisellen · Since 2021

The core activity of Alves Design is the provision of services in the field of construction companies, particularly in the planning and execution of real estate projects. This includes, among other things: painting work, plastering work, flooring, construction management, building services, kitchen construction, and electrical installations. The company focuses on the needs of architects, property managers, and investors, offering individual, cost-effective solutions.

ARS Architektur AG 

Münchenstein · Since 1994

Bad und Sicherheit GmbH 

Brugg Ag · Since 2021

The core activity of the company 'Bad und Sicherheit GmbH' consists of planning, consulting, delivering and installing age-appropriate and barrier-free bathrooms and toilet facilities, particularly in the implementation of the concept 'Bath tub out - Shower in' as well as the installation of anti-slip applications and barrier-free fixtures.

BENIMAG Baumanagement AG 

Rümlang · Since 2020

The core activity of BENIMAG AG is general planning, project development, construction management and total contracting in the construction industry. The company assumes responsibility for the planning and realization of construction projects and offers services such as project development, construction management, general contracting, local construction management, client representation and expert opinions.

CASASERV GmbH 

Zurich · Since 2007

The core activity of casaserv GmbH is the provision of services in the field of building maintenance and construction management. This includes in particular: Building maintenance: cleaning and maintenance of buildings, including the inspection and maintenance of facilities and equipment. Construction management: coordination and planning of interior construction and renovation work, including the supervision of craftsmen and suppliers. The company thus offers comprehensive care for properties to preserve their value and ensure optimal use.

Ennio Ferrari SA 

Lodrino · Since 1996

Ennio Ferrari SA is a construction company operating as a general contractor, providing building construction, civil engineering, railway works, paving, asbestos remediation and property development services.

Ennio Ferrari Holding SA 

Lodrino · Since 2018

Ennio Ferrari Holding SA is a construction company providing building and general contracting services, civil engineering, paving and railway works. The company’s services also include asbestos remediation and real estate activities.