Construction & Architecture

Wyss + Santos Dipl. Architekten M. Arch / HTL GmbH 

Basel · Since 2004

Wyss + Santos is an architectural firm specializing in the planning and realization of various construction projects, including hotels, schools, office spaces, private apartments, and interior design. The company's core activity encompasses architectural consulting, planning, and implementation of construction projects, with the two owners, Marilí Santos-Munné and Lorenz Wyss, offering innovative and independent solutions together with their team.

Xaver Keiser Holzbau AG 

Zug · Since 1967

Xaver Keiser Zimmerei Zug AG 

Zug · Since 1996

Xaver Keiser Zimmerei Zug AG is a carpentry and timber-construction company that executes traditional timber construction, engineered-timber and prefabricated element projects. Its services include interior fit-out, parquet and stair construction, facades and insulation, renovations, and general-contracting for new builds and extensions.

Y-A Echafaudages Sàrl 

Cheyres · Since 2022

The core activity of Y-A Echafaudages is the assembly of scaffolding for the installation of photovoltaic systems.

Y. Girardet Wohnbox 

Kloten · Since 1992

The core activity of Wohnbox Designmöbel is the design and sale of design furniture for living spaces, with the company also offering services such as spatial design and exhibitions.

Zanolari AG, Möbelschreinerei und Innenarchitektur 

Bättwil · Since 1975

The core activity of Zanolari AG encompasses the planning, development and realization of comprehensive interior design solutions, including cabinetmaking, interior architecture, mass production, renovation and new construction, as well as the manufacture and sale of furniture, doors, flooring and other interior design products.

zehnder immo ag 

Bargen Sh · Since 2012

zehnder immo ag is a real estate development and services company that acts as a general contractor to plan and build projects and that offers property sales and rentals. The firm also provides property valuation and brokerage services.

Zehnder Spezialbau AG 

Einsiedeln · Since 2013

The core activity of Zehnder Spezialbau AG is the execution of specialized deep foundation work, particularly in the area of drilling and ramming for the installation of pipelines and other underground infrastructure. This includes, among other things: * Ramming: The installation of pipelines by ramming steel pipes into the ground. * Auger boring: The installation of pipelines by drilling and pressing pipes into the ground. * Long-hole drilling in rock: The execution of drilling for the installation of pipelines in rocky ground. * Guided boring: The installation of pipelines by pressing pipes into the ground using guided boring methods. * Soil displacement with earth rockets: The installation of pipelines by displacing the soil with an earth rocket. * Core drilling: The execution of drilling for the installation of pipelines in various soil types. * Pipe ramming: The installation of steel pipes by ramming them into the ground. The company carries out these works for various clients, including energy network and water supply companies.

Zellgut AG 

Schenkon · Since 2012

Zellgut AG is a construction company offering structural building, renovation, agricultural buildings and exterior/site works. Services include project consultation, planning support and on-site execution for building projects.

ZEMENTOL Schweiz AG 

Widnau · Since 2010

The core activity of ZEMENTOL Schweiz AG is the planning, monitoring and execution of sealing solutions for concrete structures, particularly in the area of flat roofs and white tubs. This includes the creation of sealing concepts, the planning of penetration solutions, the development of crack-resistant reinforcement and the monitoring of the concrete recipe, concrete installation and after-treatment. The company also offers the delivery and installation of sealing materials and joint tapes, and assumes liability for the usability of the sealing solutions for a period of 10 years.

Zettelwerk AG 

Winterthur · Since 2013

The core activity of Zettelwerk AG is construction management, particularly the planning, consulting and implementation of complex construction projects in the areas of high-rise buildings, retail, temporary and office buildings. This also includes specific services such as architecture, energy consulting, fire protection planning, monument preservation and protection, as well as visualizations and project visualization.

Zeugin Bauleitung GmbH 

Ammerswil Ag · Since 2012

The core activity of Zeugin-Bauleitung is construction management and project control in the field of high-rise construction, particularly in the construction of new buildings and renovations of residential buildings, such as multi-family houses (MFH) and single-family houses (EFH), as well as the construction of commercial properties like garages.

Zgraggen AG 

Göschenen · Since 2011

Zgraggen AG is a joinery that designs, manufactures and installs custom woodwork such as kitchens, furniture, doors, ceiling and wall claddings, and flooring. The company delivers interior fit‑out, glazing and locking‑system solutions, carrying out most production in‑house and using regional solid wood and sustainable materials.

ZID Architecture Sàrl 

Chambésy · Since 2013

ZID Architecture Sàrl is an architectural firm providing comprehensive architect services according to SIA 102 from preliminary design through project completion. Services include feasibility studies, client assistance and construction management, with project work in transformation, renovation, new construction, urban planning, energy remediation, heritage preservation, pollutant remediation and fire‑safety compliance.

Zimbas, Zimmerleute Basel GmbH 

Basel · Since 2006

The core activity of Zimbas is sustainable timber construction in existing and new buildings, including services such as renovations, roofing, new and extension constructions, monument preservation, terrace construction, floor and staircase construction, as well as carpentry work.

Zimmerei Chaletbau Schletti AG 

Zweisimmen · Since 2007

Zimmerei Chaletbau Schletti AG is a timber construction company that designs and builds chalets, engineered-wood and prefabricated element structures as well as agricultural buildings. Services include renovations and conversions, interior fittings in new and reclaimed wood, production and assembly of prefabricated timber elements, and work carried out to Minergie standards.

Zimmerei Schreinerei Martin Donauer GmbH 

Welschenrohr · Since 2019

Zimmerei Schreinerei Martin Donauer GmbH is a carpentry and joinery firm providing woodworking services. Its offerings include kitchen construction, window supply and installation, facade and element construction, stair building, flooring (parquet and laminate) and furniture production and repairs.

Zoka Roll di Zoran Brnic 

Losone · Since 2006

Zoka Roll di Zoran Brnic is a company that supplies and installs roller shutters, awnings, pergolas, insect screens and window/frame systems. The firm also provides repair, adjustment and maintenance services and cooperates mainly with Swiss suppliers.

ZÖLLIG GARTENBAU GmbH 

Neukirch (Egnach) · Since 2005

ZÖLLIG GARTENBAU GmbH provides garden planning and consulting and carries out new garden installations, garden conversions, natural stone work and garden and tree maintenance services.

Zosso-Fugen GmbH 

Wünnewil · Since 2019

Zosso-Fugen GmbH provides waterproofing, coating, joint and tile installation services and offers consultancy on building waterproofing and water damage. Services include silicone and expansion joint replacement, seamless floor and wall systems (e.g., AI DO, NaturoFloor, Wall2Floor) and liquid-plastic and resin coatings.

Zuber Aussenwelten AG 

Domat/Ems · Since 1991

Zuber Aussenwelten AG is a company focused on garden design, landscape construction and garden maintenance. Its services include project planning and planting design, execution of outdoor spaces such as natural pools, paving, stone walls, green roofs and façade greening, plus maintenance plans and garden coaching. The firm also runs a garden laboratory for research projects and a garden atelier for events.

Zuber Aussenwelten AG 

Chur · Since 1991

Zuber Aussenwelten AG designs, plans and constructs gardens and outdoor spaces and provides ongoing maintenance services. Offerings include landscape construction, planting design, natural pools, green roofs and façade greening, as well as maintenance plans and garden coaching.

Zuckschwerdt Bau AG 

Staufen · Since 2012

Zuckschwerdt Bau AG carries out new construction, conversions, renovations and client-specific building works. The company delivers projects from single-family houses and housing developments to commercial, industrial and agricultural buildings and undertakes renovation work on historic structures.

ZÜGER ARCHITEKTEN AG 

Dübendorf · Since 2005

The company is an architectural firm specializing in the planning and realization of construction projects. The core activity includes the creation of designs, the implementation of construction projects, and the accompaniment of clients in the implementation of their construction projects. In doing so, the company focuses on sustainability, ecological and economic aspects, as well as the needs of the people who will live and work in the built spaces.

Zurbuchen AG Amlikon 

Amlikon-Bissegg · Since 2021

The core activity of Zurbuchen company is the planning, design, manufacturing and installation of custom-made furniture systems and room designs for offices, training and meeting rooms, as well as the improvement of acoustics and sound insulation. This also includes the production of special furniture pieces such as conference tables, workstation systems and room dividers.

ZÜRICHSEE GARTEN - GASHI 

Horgen · Since 2009

ZÜRICHSEE GARTEN - GASHI is a garden maintenance and landscaping provider offering services such as garden upkeep, stonework, biotope creation and winter services. The company states it works with an individual and personal approach to customer requests.

Zwahlen - Itel Haustechnik GmbH 

Ried B. Kerzers · Since 2010

The core activity of Zwahlen-Itel Haustechnik GmbH is the provision of services in the field of building technology, particularly in the areas of sanitary installations, water supply and heating technology. The company offers a wide range of services, including planning, installation and maintenance of sanitary facilities, heating systems and water supply systems.

Lütke Einbauküchen GmbH 

Uster · Since 2025

The core activity of Lütke Einbauküchen is the planning and realization of individual kitchens, including assembly and construction management, as well as the provision of related services such as cost management.

Stauffer Schienen- und Spezialfahrzeuge Service AG 

Frauenfeld · Since 2025

Stauffer Schienen- und Spezialfahrzeuge Service AG provides maintenance, servicing and repairs for rail vehicles and two-way vehicles and sells spare parts via an online shop. Its services include vehicle and aggregate overhauls, train protection system inspection and repair, fabrication of main air and supply lines, transports and crane operations, and the sale and rental of vehicles and special tools; the company holds ECM certification.

Alain Duc Paysagisme & Concept Sàrl 

Crans-Montana · Since 2025

The core activity of Alain Duc Paysagiste SA is the planning and realization of outdoor facilities and landscape design, including the conception and implementation of gardens, parks, terraces, stairs, barriers, fences, swimming pools, paving, playgrounds, noise barriers, walls, rock formations, lawns and irrigation systems.

Happle Bauleistungen GmbH 

Hefenhofen · Since 2025

Happle Bauleistungen GmbH provides construction services in civil engineering, road construction, demolition and garden landscaping, offering project consulting and execution.

4B AG 

Hochdorf · Since 1962

4B AG designs and manufactures windows, doors and façade systems and provides services such as spare parts, maintenance and customer consulting. The product range includes wood–metal window systems, sliding and entrance doors, and post-and-beam façade systems, and the company offers planning resources (CAD/BIM) for architects and planners.

4D Holzarchitektur GmbH 

Oberriet Sg · Since 2007

4D Holzarchitektur GmbH is an architecture and planning firm focused on timber architecture, offering architectural, interior-design and client-representation services. The firm supports new-build, conversion and extension projects from concept to realization and provides 3D scanning and development of wooden properties.

a2 Architekten AG 

Herisau · Since 1981

The core activity of the company "a2 architekten ag" is the planning and implementation of architectural projects, including new buildings, conversions, renovations and facade renovations of residential and commercial buildings, schools, churches and other structures. The company offers comprehensive services, from the initial sketch to the handover of the keys, including tenders, contract and cost management, local construction management and building physics aspects.

a2architekten.ch Christoph Stauffer 

Wil Sg · Since 2014

a2architekten.ch Christoph Stauffer is an architectural practice that designs and delivers projects in the residential, educational and commercial sectors. The practice covers all project phases from preliminary sketches to handover, including tendering, contract and cost management, and site supervision, and cooperates with specialist consultants and project partners.

AA Asbest Altlasten Sanierungen GmbH 

Birmensdorf Zh · Since 2013

The company's core activity is the remediation and disposal of pollutants, particularly asbestos, in buildings and industrial facilities. This includes the planning, execution and monitoring of remediation measures, the removal of asbestos and other pollutants, as well as the disposal of these materials in accordance with applicable legal regulations.

AAG atelier d'architecture Grivel & Girod SA 

Geneva · Since 2009

The core activity of AAG atelier d'architecture Grivel & Girod SA is architecture. The company provides services in the field of architecture, including the planning and realization of construction projects, as evidenced by the list of projects on the website.

aardeplan AG 

Baar · Since 2009

The core activity of aardeplan ag is the provision of architectural and consulting services, particularly in the areas of new buildings, conversions, renovations, planning, construction management and sustainable solutions. The company offers a comprehensive range of services, from project development to the realization of construction projects, and focuses on the needs of private and professional clients.

Aare Dämmungen Bern AG, Urtenen-Schönbühl 

Urtenen-Schönbühl · Since 2001

The core activity of Aare Dämmung Bern AG is the provision of services in the field of structural fire protection, insulation of ventilation systems, and loose-fill insulation. Specifically, this includes the planning, installation, and maintenance of: fire protection systems, ventilation systems, insulation solutions for ventilation systems, loose-fill insulation, and photoluminescent escape route systems. The company offers these services primarily in the Bern region and positions itself as a reliable partner for the safety of people and assets.

Aare-Tore GmbH 

Bellach · Since 2014

The core activity of Aare-Tore GmbH is the planning, installation, renovation and maintenance of gates and doors for garages, residential buildings, warehouses and industrial facilities. The company offers a wide range of products, including sectional doors, roller doors, swing doors, wing doors, garage door drives and front doors, and supports customers in selecting and installing these products.

A. Arnold, Baugeschäft 

Allenwinden · Since 1954

A. Arnold, Baugeschäft is a construction company that carries out building construction, civil engineering, facade work and renovation and conversion projects. The firm provides services to private clients, commercial customers and public-sector clients.

ABAT TECH Sàrl 

Reconvilier · Since 2000

The core activity of Abat Tech Sàrl consists of carrying out specialized work in the field of surface treatment, cleaning and stabilization of various materials and structures, including: metal and wood structure stripping (decoating), cryogenic cleaning, sandblasting of wood and other materials, stabilization of rock faces and slopes, thermography (thermal imaging), core drilling investigations, and cleaning of retaining walls. The company offers these services for various applications, including building renovation, rock face securing, and industrial plant cleaning.

AB JARDIN SARL 

Puplinge · Since 2000

The core activity of AB Jardin Sàrl is the design, creation and maintenance of gardens. This includes in particular the planning and conception of gardens, their construction and installation, the maintenance and upkeep of gardens, the creation of pathways, the building of walls and the pruning of trees.

Accola Davos GmbH 

Davos Platz · Since 2011

Accola Davos GmbH is a family-run company providing agricultural contract work as well as excavation, earthworks, forestry and timber-transport services. Its services include mowing, raking and haymaking, tillage and spreading, excavation and drainage works, slope stabilization, forest and alpine road construction, piste work, snow clearing and timber transports.

Acer Jardin Sàrl 

St-Aubin Fr · Since 2013

The core activity of Acer Jardin Sàrl is the planning, design, construction and maintenance of gardens and outdoor spaces, for both private and public clients. This includes the creation of garden projects, the establishment of green spaces, the planting of trees and shrubs, the construction of garden walls, stairs and other garden structures, as well as the regular maintenance and upkeep of gardens, including lawn mowing, weed control, tree care and other gardening work.

Achermann Schreinerei AG 

Stans · Since 1985

The core activity of Achermann Schreinerei AG is the manufacture and distribution of wood products, particularly the production of furniture, kitchens, bathrooms and other wood fittings for private and commercial use. The company also offers renovation and planning services and has its own workshop and CNC machining centers for the production of wood products.

AC Mächler AG 

Vorderthal · Since 1991

The core activity of AC Mächler AG is the construction business and contract work, particularly in the areas of: * Building construction (single-family homes, multi-family homes, commercial, agricultural and public buildings) * Additions and renovations * Reinforcement The company thus provides services in the field of construction, including planning, execution and control of construction projects.

ACRONET Sàrl 

Gland · Since 1998

The core activity of Acronet Sàrl consists of performing high-altitude work, particularly: rope access work, cleaning, bird control, sealing and installation of curtains or sun protection systems. The company provides these services with a team of highly qualified and certified specialists who are experts in high-altitude work.

adali engineering gmbh 

Wallisellen · Since 2007

adali engineering gmbh is a civil engineering firm providing design services for building and civil infrastructure projects. The company plans and delivers new construction, renovations and refurbishments, carries out seismic assessments and geotechnical work (excavation support, foundations), and prepares thermal and acoustic compliance reports and cost specifications.

AD ENTREPRISE GENERALE SA 

Luins · Since 2012

AD ENTREPRISE GENERALE SA is a general contractor offering architectural design, project planning, site management and coordination for building projects. Its services also include feasibility studies, optimisation of solutions, financial management and the promotion and commercialisation of real estate.