General Contractors

Kiefer Projekt AG 

Therwil · Since 2009

The core activity of Kiefer Projekt AG is the planning, execution and consulting of construction projects, particularly in the field of timber construction and timber architecture. The company offers services such as new construction, renovation, building appraisal and construction management, and has specialized in the development and realization of sustainable and forward-looking houses, such as the KIMANI house.

Kyburz Architektur und Bauleitungen GmbH 

Killwangen · Since 2014

The core activity of Kyburz Architektur und Bauleitungen GmbH is the provision of architectural services, construction management, planning coordination, and the implementation of building projects in the field of high-rise construction, including general and total contractor mandates, as well as technical construction management for new buildings and renovations.

Landolt + Co AG Totalunternehmung RDN 

Ossingen · Since 1991

The company's core activity is the execution of master builder works, including new constructions of all kinds, renovations of old properties and facades, renovation, conversion, drilling and scaffolding works, as well as specialized customer masonry work for the interior of buildings.

Lenz Gruppe AG 

Baar · Since 2019

Lenz Gruppe AG is a real estate services provider offering project development, project- and construction-management, and the planning and delivery of new-build and renovation projects. Services also include acting as a general or total contractor and the marketing, sale and leasing of properties and land.

Lussmann Generalunternehmung GmbH 

Altdorf Ur · Since 2015

Martin Lenz AG 

Baar · Since 1999

Martin Lenz AG is a real estate service provider offering project development, project and construction management, and new-build and renovation services. The company develops, realizes and markets living spaces across German-speaking Switzerland and also acts as a general and total contractor while handling land transactions and property sales/rentals.

MBM Efficience SA 

Charmey (Gruyère) · Since 2021

MBM Efficience SA provides timber construction and carpentry services, including the manufacture and installation of prefabricated wood elements and structural timber work. Services also include joinery and interior fittings—windows (wood and wood‑aluminium), entrance doors, shutters, cladding, balconies, kitchens, bathrooms, furniture and stairs—along with site supervision and issuance of the cantonal energy certificate (CECB).

motivo immo ag 

St. Gallen · Since 2018

motivo immo ag is a construction services company specializing in construction consulting, planning and realisation. It provides project management and site management, general planning, cost planning and total contracting, and works on residential, office, industrial, commercial, special building and renovation projects.

MS BAT Sàrl 

Versoix · Since 2018

MS BAT Sàrl is a Swiss-based, local construction company with its headquarters in Versoix, specializing in the renovation, transformation, and refurbishment of buildings in the cantons of Geneva and Vaud. The company's core activities include: renovation of residential and commercial properties, transformation of buildings, demolition work, masonry, painting, excavation and preparation of building plots, special requests such as drilling, carbonation and sawing, as well as construction management and project management. The company offers its customers a comprehensive range of services to successfully implement their construction projects.

Felsenegg Holding AG 

Zug · Since 2000

The core activity of Müller Müller Architekten AG is the provision of architectural services.

Nägeli AG 

Gais · Since 2014

Nägeli AG is a timber construction and interior joinery company that designs and manufactures solid wood elements (Appenzellerholz), board-stacked (Brettstapel) components, Till floors and bespoke carpentry. Services include project planning, execution and production, site supervision and building-physics consulting.

one immobilien ag 

Sempach · Since 1973

The core activity of one immobilien ag is real estate development and management, including project development, realization, initial rental, management, purchase and sale of residential and commercial properties.

PB Agro & Bau GmbH 

Zeglingen · Since 2018

PB Agro & Bau GmbH provides architectural design, construction management and timber-structure planning services. Activities include preliminary and project design, studies and cost estimates, tendering support, on-site supervision and coordination of trades.

PEK ARCHITEKTEN AG 

Zurich · Since 1995

The core activity of PEK Architekten AG is the planning and realization of architectural projects, particularly in the area of residential houses, housing estates, hotels and other buildings.

Peter Michel AG 

Brienz Be · Since 1984

The core activity of Peter Michel AG is construction, particularly in the field of building construction and civil engineering, with a focus on: residential construction, commercial construction, agricultural buildings, renovation and refurbishment, civil engineering works such as river construction, road construction, pipeline and sewer construction, demolition and environmental works, and gravel plant operations. The company also offers general contracting and carries out projects from planning to execution.

Pfister Partner Baumanagement AG 

Zurich · Since 2006

Pfister Partner Baumanagement AG is an architecture and construction management firm providing comprehensive planning and project control services. Its services include overall project management, general planning, cost, schedule and quality management, client representation and fixed-price renovation solutions.

Plöchinger Architektur 

Stäfa · Since 2007

Plöchinger Architektur is an architectural practice offering design services, project planning, construction management and property sales. The firm delivers single- and multi-family housing projects with a modern, linear and cubic aesthetic, incorporates timber elements and coordinates local craftsmen throughout execution.

Prima-Home GmbH 

Oberburg · Since 2024

Prima Home is a skilled trades company offering a wide range of services in the field of renovation, conversion and maintenance of residential and commercial spaces. The core activities include: renovation and conversion of rooms, including wall renovation, painting, plastering and flooring work; cleaning and clearing of residential and commercial spaces; painting and decorating of interior and exterior spaces; laying of floor coverings; and a comprehensive service for partial or complete renovations of rooms. The company focuses on providing high-quality services with a strong emphasis on innovation, quality and customer satisfaction.

ReBo & Partner AG 

Zurich · Since 2005

The core activity of ReBo & Partner AG is the provision of services in the construction industry, particularly in consulting, project management, execution and overall planning of construction projects. The company acts as an intermediary between planners, architects, craftsmen and builders, offering solutions that provide high professionalism and a good price-performance ratio.

REIMMCO Sàrl 

Romanel-Sur-Morges · Since 2019

The core activity of Reimmco SARL is the provision of services in the construction sector, particularly in: Construction management and representation of the client (Direction des travaux & Représentation Maître d’ouvrage), Transformation, modernization and renovation of buildings, Extension and elevation of buildings (Extension – Surélévation). The company thus offers services aimed at representing the client's interests and achieving the objectives of the construction project.