Construction & Architecture

Winnewisser Bauherrentreuhand GmbH 

Bern · Since 2024

Winnewisser Bauherrentreuhand GmbH provides client-representation and trustee services for construction projects, organizing, coordinating and overseeing projects from development to final documentation. Services include reviewing project fundamentals, preparing and checking contracts and specifications, defining interfaces, representing client interests in procurement negotiations, and supervising trust accounts for payment releases and budget control.

Winnewisser Totalunternehmung GmbH 

Bern · Since 2024

Winnewisser Totalunternehmung GmbH provides total contracting services, taking responsibility for planning, project development and delivery of construction projects while coordinating all required planning and construction tasks. Services include feasibility studies, permitting, tendering, execution planning, procurement, implementation, commissioning and warranty services.

Wirnsperger Generalunternehmung AG 

Fehraltorf · Since 2007

Wirnsperger Generalunternehmung AG provides project planning, general contracting and execution for new-builds and renovations, and offers property sales and rental listings. It also provides property management and facility services, including accounting and tenant support, and works with certified subcontractors.

Wirnsperger Generalunternehmung AG 

Gais · Since 2022

Wirnsperger Generalunternehmung AG provides general contracting services including project planning and construction management for new-builds and renovations. The company also offers property sales and rentals, property management and facility services.

W. Stalder AG 

Bigenthal · Since 2001

The core activity of W. Stalder AG primarily encompasses the areas of transportation and heavy equipment rental. Specifically, the company offers the following services: transportation of building materials, waste, and other goods; rental of heavy equipment, such as excavators and other machinery; and container transport for excavation, old pavement, construction waste, roofing materials, sorted materials, green waste, mixed construction waste, concrete demolition, old windows, and other materials. Thus, the company provides a comprehensive range of services for the construction and waste management industries.

Wyder Abbruch und Aushub AG 

Forch · Since 2016

The core activity of Wyder Abbruch und Aushub AG is the execution of building demolition, excavation and grave works, as well as the creation of terrain adjustments and stone walls. This also includes transports, disposals, crane work and the sale of gravel and humus.

Zaunteam Engadin-Surses GmbH 

Bivio · Since 2008

Zaunteam Engadin-Surses GmbH is a specialist company for fences and gates. It supplies fence and gate systems for residential, industrial, agricultural and public applications and provides services from planning and professional installation to repair and maintenance.

zimmerei frei ag 

Hünenberg · Since 2015

Zimmerei und Schreinerei Krienbühl 

Schlieren · Since 2023

The company's core activity is the provision of services in the field of timber construction and craftsmanship, particularly in the areas of carpentry, roofing, masonry, joinery and electrical work. The company offers a wide range of services that encompass both traditional craftsmanship and modern building concepts, and focuses on creating individual solutions for construction and renovation projects.

Zollinger Garten GmbH 

Männedorf · Since 2016

Zollinger Garten GmbH is a landscaping and garden services company providing garden planning, design and maintenance. Services include planting and greening, terraces, paths, driveways, playgrounds, walls and water features, roof gardens, pruning, lawn care, pest control and subscription-based maintenance plans.

Zollinger Home AG 

Männedorf · Since 2024

Zollinger Home AG provides consulting, design planning, project engineering and maintenance planning for gardens and green spaces, and executes outdoor works such as plantings, terraces, paths, driveways, walls and water features.

Zurbuchen Bodenschutz GmbH 

Lippoldswilen · Since 2008

Zurbuchen Bodenschutz GmbH provides soil protection and recultivation services, including soil improvement, in‑situ biological remediation, deep loosening and sludge utilization. The company also carries out revegetation works (drone seeding, spray seeding/hydroseeding, erosion control) and operates an organic farm to test soil‑conserving practices and advise clients.

Zurbuchen Technik & Dienste AG 

Lippoldswilen · Since 2018

Zurbuchen Technik & Dienste AG provides soil protection, recultivation and greening services. Its activities include soil improvement, in‑situ biological remediation, sludge reutilization, deep loosening and mixed soil tillage, soil‑friendly logistics, and greening methods such as hydroseeding, drone seeding and concrete/vertical greening; the company also operates organic agricultural activities used for trials and cultivation.

3S-Schreinerservice GmbH 

Kloten · Since 2012

The core activity of 3S-SchreinerService GmbH is the provision of carpentry services, including interior finishing, repair and assembly of carpentry products. The company offers high-quality products and services, such as the assembly of carpentry products during renovation, new construction or in occupied buildings, as well as a repair service with mobile workshops.

Abegg Service 

Gebertingen · Since 2016

The core activity of Abegg Service is the maintenance, repair and care of windows and doors. This includes specific services such as adjustment work, renovations, seal maintenance, replacement of defective parts, cleaning of stubborn dirt, repair of surface damage, programming and repair of access solutions and home automation, as well as hardware conversion for increased burglary protection.

Aeschlimann Services 

Seewil · Since 2023

The core activity of Aeschlimann-Services is the execution of interior renovations and the creation of custom designs, particularly in the field of interior finishing, such as flooring, painting, as well as the design and decoration of interior and exterior spaces.

Alder + Kuratli GmbH 

Herisau · Since 2007

Alder + Kuratli GmbH is a construction company specializing in various areas of the construction industry. The core activities include: facade construction, tile laying, painting, plastering, and metal construction. The company offers consulting and implementation of construction projects, focusing on high quality and optimal cost-benefit ratio for its customers.

ALPINA BOIS SA 

Meyrin · Since 2000

The core activity of Alpina Bois is the planning, manufacturing and installation of interior fittings and furniture, particularly agencements (fixtures and fittings) for residential and commercial spaces, with a focus on design, functionality and safety.

Altorfer Architekten Inhaber R. Altorfer 

Volketswil · Since 2006

Altorfer Architekten Inhaber R. Altorfer is an architectural practice offering project development, execution planning, site analyses, cost estimates and client representation during construction. Services also include land and property search, feasibility studies and advising/construction supervision throughout the building process.

ALVES Etanchéité Sàrl 

Farvagny-Le-Petit · Since 2023

The core activity of Alves Etanchéité is the execution of works in the field of roof waterproofing, including the creation of green roofs, insulation and the maintenance and upkeep of roof structures.