Construction & Architecture

Kista Generalunternehmung AG 

Cham · Since 2017

Kista Generalunternehmung AG provides construction, renovation and refurbishment services including project planning, site management, demolition and proper waste disposal. The company also offers building maintenance and caretaking, technical and electrical servicing, cleaning, winter services and garden maintenance.

Klein Gartenbau GmbH 

Dintikon · Since 2017

The core activity of Klein Gartenbau is gardening and garden maintenance. This includes the planning, creation and maintenance of gardens, including the selection and cultivation of plants, as well as the execution of gardening work such as upkeep and planting.

KNECHT BAUUNTERNEHMUNG AG 

Münchenstein · Since 1998

KNECHT BAUUNTERNEHMUNG AG is a construction company providing building and civil engineering services, including new construction, renovation, demolition, excavation and structural works. The company delivers integrated project services such as planning, execution and engineering for single-family and multi-family homes as well as commercial and industrial buildings.

Kobal Gebäudetechnik AG 

Unterkulm · Since 2002

Kobal Gebäudetechnik AG provides consulting, planning and execution for building services projects, covering sanitary, heating and renewable energy systems. Services include bathroom and pipeline planning, installation and maintenance of plumbing and heating systems (heat pumps, wood and pellet boilers), prefabricated wet-room installation, flood-protection solutions and emergency remediation.

Koch Wärmepflege GmbH 

Zofingen · Since 2022

Koch Wärmepflege GmbH provides chimney sweeping services, combustion inspections including CO measurements, and fire-protection consulting and fire‑penetration sealing. The company maintains wood, gas and oil heating systems, advises on efficiency and preservation of installations, and supports builders, municipalities and architects on fire-safety matters.

Kogo Montagen & Holzbau GmbH 

Rorschacherberg · Since 2008

The core activity of KOGO GmbH is the execution of assembly and carpentry work, particularly in the areas of: window and door assembly, aluminum shutter and aluminum box assembly, interior finishing, glass assembly, sealing and carpentry. The company also offers a 24-hour window service.

Kohler in One AG 

Schattenhalb · Since 1996

The core activity of Kohler Bau AG is the execution of construction projects and related services. Specifically, this includes: Building construction (construction of buildings), Civil engineering (construction of infrastructure such as roads, bridges, tunnels, etc.), Renovations and refurbishments (renovation and modernization of existing buildings), High-altitude construction (specialized construction work in mountainous regions), Protective structures (construction of protective structures such as avalanche control systems, wildlife protection systems, etc.), Snow removal and transportation (services related to snow removal and transportation of materials), Water construction and restoration work (construction and renovation of water structures such as dams, canals, etc. and restoration of water bodies), Environmental work (services related to the design and maintenance of environments such as parks, gardens, etc.), and Spring capture (construction and renovation of spring capture and water supply systems).

Könitzer AG 

Worb · Since 1976

Könitzer AG manufactures timber and timber/metal windows, doors and provides general carpentry work. Services include planning, design, execution and installation, as well as renovations, new-builds, sound insulation, thermal refurbishment and burglary protection.

Könitzer + Hofer AG 

Worb · Since 1991

Könitzer + Hofer AG manufactures wooden and wood–metal windows, doors and carries out general joinery, providing planning, design, execution and on-site installation. Services cover new-build, conversion and renovation projects and include soundproofing, thermal upgrades and burglary-protection measures.

Konsag, Holzkonservierung und Bautenschutz AG 

Goldswil B. Interlaken · Since 1985

Konsag, Holzkonservierung und Bautenschutz AG provides wood preservation and building-protection services, including pest control, water-damage remediation and leak detection. The company also offers construction drying services, rents aerial work platforms and provides IPAF operator training.

Köttermann AG 

Kemptthal · Since 1994

Köttermann Schweiz is a full-service provider for laboratory projects, specializing in the planning, execution, and maintenance of laboratory facilities. The core activity includes consulting, planning, delivery, and installation of high-quality steel furniture, safety cabinets, fume hoods, and other laboratory equipment, as well as the implementation of renovations and expansions of laboratory spaces.

KSL Ingenieure AG 

Dättwil Ag · Since 1972

KSL Ingenieure AG is an engineering firm offering a wide range of services in the fields of structural engineering, geomatics, environment, infrastructure, and spatial planning. The core activities include: * Structural engineering (foundation and special civil engineering, repair and renovation, dynamics and earthquake safety) * Geomatics (construction and engineering surveying, utility mapping, geographic information systems, sensor technology) * Environment (water construction, environmental planning, urban drainage) * Infrastructure (transportation infrastructure, supply and disposal) * Spatial planning (land management, spatial planning, building administration) The company provides consulting services, planning and design as well as implementation of projects in these areas.

Kurt Lämmler GmbH 

Ermenswil · Since 2005

Kurt Lämmler GmbH is a carpentry workshop that manufactures wooden products and undertakes interior joinery and renovation work. Services include kitchens, cabinets, bathrooms, doors, tables and CNC-produced components, with project support from consultation and planning through production, installation and after-sales service.

Ladenmacher AG 

Hägendorf · Since 2010

Ladenmacher AG was acquired by SCS Storeconcept AG and is part of its shopfitting and interior-solutions offering. SCS Storeconcept provides conception, planning, production and installation of shop and interior fittings, together with retail consulting and customer analytics.

Läderach GmbH Fugenabdichtungen 

Bern · Since 1998

The core activity of Läderach GmbH is the execution of joint sealing as well as related services such as facade sealing, special sealing, joint renovation and renovation, particularly in the field of ceramic coatings, natural stone, seamless coatings, kitchens and bathrooms as well as parquet.

LA MATERIOTECH Sàrl 

Châtelaine · Since 2019

Materiostock is a Swiss provider of solutions for interior design, particularly for ceilings, walls and other surfaces. The company's core activity is the marketing and distribution of products from various Swiss manufacturers such as Innloc, Haag and Metalit, who specialize in the production of ceilings, wall cladding and other metal products. Materiostock offers a wide range of products, including ceilings, wall cladding, acoustic solutions, lighting systems and other solutions for interior design. The company supports architects, planners and installers in the selection and implementation of these solutions and provides consulting, sales and delivery of standard products.

LAPORCH SARL 

Moudon · Since 2016

LAPORCH SARL is a workshop where architects, joiners, carpenters, industrial designers, engineers and woodworking technicians collaborate. The studio designs and fabricates wooden elements and constructions—including furniture, stairs, kitchens, interior fittings and art installations—while integrating digital fabrication techniques (CAD/CAM/CNC) across design and construction.

L'Artisan Sàrl 

Vétroz · Since 2009

The core activity of L'Artisan Sàrl is the manufacture and distribution of high-quality wood products, particularly in the areas of joinery (doors, windows, furniture), cabinetmaking and Internorm systems (window systems). The company also offers services such as custom manufacturing and renovation of wooden structures.

Lebag Leitungs- und Elektrobau AG 

Lenzburg · Since 1991

LEONELLI et Fils, Stefano LEONELLI successeur 

Confignon · Since 2001

The core activity of Leonelli et Fils is the planning, design and maintenance of outdoor spaces, particularly gardens, for private and commercial clients.

Liggenstorfer Architekten AG 

Winterthur · Since 2015

The core activity of Liggenstorfer Architekten AG is the provision of architectural services, particularly in the area of renovation and new construction of buildings, including planning, design and construction management.

Linde Gartenbau AG 

Arisdorf · Since 2017

The core activity of the company 'Linde Gartenbau AG' is the planning, design and maintenance of gardens, including the construction of retaining walls, seating area designs, flooring, lawn and turf areas, privacy screens, winter protection, garden planting and pond systems.

LINEA LOMBARDO SA 

Montreux · Since 1990

The core activity of Linea Lombardo SA is the provision of services in the field of architecture and interior design.

Lippuner AG Gebäudetechnik 

Riehen · Since 1973

The core activity of Lippuner AG Gebäudetechnik encompasses the planning, installation and maintenance of heating systems, sanitary services as well as the implementation of alternative energy projects.

LM Paysagiste GmbH 

Salgesch · Since 2016

The core activity of LM Paysagiste GmbH is professional garden design and maintenance. The company offers individual garden projects, consulting and implementation of garden wishes, and has specialized in garden design to create a haven for its customers where they can feel safe and comfortable.

L & P Dämmtechnik+Verputze GmbH 

Ittigen · Since 2016

The company provides services in the field of construction and building maintenance, particularly in the areas of painting, sealing, acoustics, window connections, new buildings and renovations. It is a company specialized in the execution of works on buildings to renovate, restore or build them.

LUCCHINI & LIPPUNER SA 

Viganello · Since 2000

LUCCHINI & LIPPUNER SA provides surveying and geospatial services, including architectural surveys, photographic reportage, setting-out and Prova a Futura Memoria for construction firms. It produces GIS data, orthophotos, digital terrain models and carries out monitoring for engineering firms and public clients.

Ludi AG 

Gstaad · Since 2011

The core activity of Ludi AG is the production of interior fittings, windows, doors and furniture, mainly in solid and reclaimed wood, according to the ideas of discerning customers. The company also offers services in the areas of carpentry, cabinetmaking and interior design.

LUPPI - NEGRI SENZANI Sagl 

Lugano · Since 2015

The core activity of Luppi - Negri Senzani Sagl is the provision of architectural and construction management services, including the planning, implementation and management of construction projects, particularly in the field of villa and residential building development.

Lüscher & Partner Architekten GmbH 

Safenwil · Since 2022

The core activity of Lüscher & Partner Architekten GmbH is the provision of architectural services.

Maco Montage Sàrl 

Cernier · Since 2021

The core activity of Maco Sàrl is the provision of services in the field of metal construction and window/door installation. Specifically, this includes the planning, execution and maintenance of metal structures, as well as the supply and installation of aluminum and PVC windows and doors for private and commercial customers.

MAGIZAN SA 

Lausanne · Since 2015

Magizan SA is an architectural firm with offices in Lausanne, Geneva and Marly. The company's core activity is the planning and implementation of architectural projects.

Marobag Romandie SA 

Morges · Since 1996

The core activity of Marobag Romandie SA is the manufacture and installation of custom-made doors and woodwork, including technical doors, joinery and other services such as cupboards, interior design, window surrounds and access systems. The company also offers maintenance and repair services for its products.

Marti Garten AG 

Aetingen · Since 2016

The core activity of Marti Garten AG is gardening and garden maintenance, including the planning and implementation of garden projects, the care and maintenance of gardens, as well as the delivery of flowers and plants. The company also offers special services such as a flower subscription and the planning of water gardens.

Martin Kamber GmbH 

Wohlen Ag · Since 2001

The core activity of Martin Kamber GmbH is the consulting, planning, measurement, installation and servicing of shower cubicles, wellness systems and saunas for private customers and companies in Switzerland. The company also offers disassembly and disposal of old shower cubicles and operates an online shop with high-quality products from renowned manufacturers.

Marty Bautrocknungen GmbH 

Schindellegi · Since 2021

The core activity of marty Bautrocknungen GmbH is the provision of services in the field of building drying and water damage restoration, including core drilling. The company offers 24/7 emergency services for the remediation of water damage and building drying, and has locations in various regions of Switzerland.

Marx AG Schreinerei und Küchenbau 

Zizers · Since 2014

The core activity of Marx AG Schreinerei and Küchenbau is the manufacture and installation of interior fittings, particularly kitchens, bathrooms, furniture, doors and other wood products. The company also offers specialized services such as acrylic stone processing, switch and reception systems, as well as practice equipment.

Massivholz Scherrer GmbH 

Dietfurt · Since 2023

The core activity of Massivholz Scherrer GmbH encompasses timber construction, particularly the manufacture of solid wood furniture, new buildings and renovations.

matter bedachungen/holzbau gmbh 

Uerkheim · Since 2021

The core activity of Matter Bedachungen/Holzbau GmbH encompasses the planning, execution and maintenance of roof constructions as well as timber construction. Specific services and products include: Roofing (pitched roofs, flat roofs, eternit roofs, plastic roofs, black roofs, walkable roofs), Timber construction (new buildings, conversions, extensions, roof truss constructions, carports, pergolas, dormer windows), Scaffolding, Solar systems, Roof windows (Velux roof windows), Renovations and repairs of roof constructions. The company thus offers comprehensive solutions for the needs of builders and property owners in the field of roofing and timber construction.

Maulini Construction S.A. 

Travers · Since 1999

The core activity of Maulini Construction SA is the provision of construction and finishing services, particularly in the areas of: masonry, reinforced concrete, liquid screeds, sandblasting, tiling, plastering and scaffolding. The company thus offers a wide range of services in the construction sector.

MBA Construction SA 

Martigny · Since 2001

The core activity of MBA Construction SA is the provision of services in the construction industry, particularly in the following specialized areas: masonry, reinforced concrete, rough construction, formwork, retaining walls, rock construction, and exterior design. The company offers these services for construction projects of all kinds, with a particular focus on customer satisfaction and the quality of its work.

MB Architekten AG 

Lachen Sz · Since 2002

The core activity of MB Architekten AG is the planning and realization of real estate projects, particularly in the fields of architecture, construction and interior design. The company offers services such as architecture, construction management, project management and consulting, and specializes in the development of residential and commercial buildings, multi-family homes, residential complexes and other real estate projects.

MediSwiss Service GmbH 

St. Gallen · Since 2010

The core activity of the company "medisuisse" consists of managing and processing social insurance, in particular old-age and survivors' insurance (AHV) and disability insurance (IV), as well as family allowances. The company offers services to employers, employees and self-employed individuals, such as calculating and processing contributions, providing benefits and managing individual accounts.

meier gartengestaltung AG 

Kirchdorf Ag · Since 2018

The core activity of the company "meier gartengestaltung AG" is the planning, design and maintenance of gardens. This specifically includes: garden planning, garden design, garden maintenance, natural stone work, lawn care, winter pruning and planting work (e.g. planting of shrubs and perennials). The company offers these services to private and possibly also commercial customers in the Baden region.

Meier-Laube AG Bauunternehmung 

Schneisingen · Since 1974

The core activity of MEIER-LAUBE AG is construction, particularly in the areas of building construction, civil engineering, renovation and gravel coating. The company offers services such as residential construction, real estate purchase and rental, construction management, crane operation and other construction-related services.

Meier Verde AG 

Niederbüren · Since 2024

Meier Verde AG is a carpentry company providing interior fit-outs and bespoke joinery services. Its services include end-to-end consultation, kitchen and staircase construction, custom furniture, surface treatments, and stainless-steel, glass and metal processing.

Meili Schreinerei AG 

Nürensdorf · Since 2011

The company is a carpentry business specializing in the manufacture and installation of interior fittings, furniture, doors, windows, and kitchens. The core activities include: * Manufacture and installation of interior fittings, such as paneling, ceiling elements, parquet and laminate floors, staircase cladding, and wooden partition walls * Manufacture and installation of furniture, such as built-in cupboards, wardrobes, bathroom furniture, and custom-made furniture pieces * Manufacture and installation of doors, including front doors, room doors, and sliding doors * Manufacture and installation of windows, including window installations in new and renovation construction * Planning and installation of kitchens, including kitchen extensions and the manufacture of additional kitchen furniture * Repairs and service orders, such as replacing windows, renewing sealant joints, and manufacturing custom-made furniture pieces.

Meinrad Müller Architektur und Bauleitung AG 

Lenzburg · Since 2010

The core activity of Meinrad Müller AG is the provision of architectural and construction management services, particularly in the field of residential construction, as well as the planning and execution of commercial and industrial buildings and public buildings.

MENUISERIE FORESTIER Sàrl 

Thierrens · Since 2009

The core activity of Menuiserie Forestier Sàrl is the manufacture and installation of wood products, in particular: doors, windows, insect screens, interior fittings, exterior woodwork and custom-made furniture. The company also offers a comprehensive service, from consulting to execution, for all types of woodwork.

MENUISERIE JOSEPH SA 

L'Auberson · Since 1991

The core activity of Menuiserie Joseph is the manufacture and assembly of wood products, particularly in the areas of: carpentry (doors, windows, kitchens, stairs), joinery (roof trusses, timber construction), sawmilling (sawmill, wood processing), and production of special wood products, such as the famous "boîtes d'école" (school boxes). The company also offers services such as equipment rental, including a 21-meter crane, and the production of wood parts with CNC machines.