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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
DirectoryConstruction & Architecture

Construction & Architecture

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48'323 companies found

INQUBATOR GmbH Logo

INQUBATOR GmbH 

Otelfingen · Since 2011

The core activity of INQUBATOR GmbH is the planning, development and implementation of interior designs, particularly for gastronomy, shop building, film and advertising productions, events and art projects. This includes manual work such as carpentry, painting, locksmithing and model making, as well as creative services such as concept development, planning and staging of rooms and images.

Interior Construction
View profile5(3)
INTER CONCEPT Architektur GmbH Logo

INTER CONCEPT Architektur GmbH 

Zurich · Since 2003

The core activity of INTER CONCEPT Architektur GmbH is the provision of architectural and interior design services, including: design and planning of construction projects, site and market analyses, economic calculations and financing consulting, needs analyses, existing building analyses and feasibility studies, project management, owner representation and construction management, detailed planning, execution planning and cost and quality control. The company offers these services for various construction projects, including residential buildings, industrial buildings, hospital buildings, administrative buildings, banks, hotels, restaurants and others.

Architecture Firms
View profile5(3)
Invias AG Logo

Invias AG 

Zurich · Since 2024

Invias AG provides architectural design, timber-structure engineering and construction management services, including planning, structural calculations and project coordination through to execution.

General Contractors
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Invias AG Logo

Invias AG 

Maienfeld · Since 2017

Invias AG provides architecture, timber-structure engineering and construction management services. The company develops building projects from concept and structural calculation through coordination of execution and also markets the QUADRIN modular timber products.

General Contractors
View profile5(3)
IRH BAU GmbH Logo

IRH BAU GmbH 

Niedergösgen · Since 2020

The core activity of IRH BAU GmbH is the provision of services in the field of pipeline construction, particularly in the areas of: trenchless pipeline construction, cable laying and cable pulling, splicing and assembly work, core drilling, paving, environmental work, and surfacing work. The company thus offers a wide range of services in the construction and infrastructure sectors.

Site Preparation
View profile5(3)
Iseni Sanitaire Chauffage Sàrl Logo

Iseni Sanitaire Chauffage Sàrl 

Lavey-Village · Since 2019

The core activity of Iseni Sanitaire Chauffage is to provide services in the field of sanitary and heating technology, including installation, maintenance, repair and renovation of sanitary facilities and heating systems, as well as the installation of solar systems and other renewable energy systems.

Specialized Construction ActivitiesPlumbing & Building Services
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Isler Stefan, Schnittblumenkulturen Logo

Isler Stefan, Schnittblumenkulturen 

Russikon · Since 2002

Isler Stefan, Schnittblumenkulturen grows and sells cut flowers and seasonal floral arrangements. Offerings include bouquets, baskets and seasonal decorations (roses, tulips, sunflowers, lilies, gladioli); the business provides local delivery to Russikon and pickup options.

Horticulture & Landscaping
View profile2.7(3)
isodicht GmbH Logo

isodicht GmbH 

Winterthur · Since 2011

The core activity of Isodicht GmbH is the provision of services in the field of building sealing, particularly in the following specific areas: joint sealing, fire stopping, Combiflex sealing, vapour and water membranes, and concrete injections. The company offers consulting, planning and execution of sealing solutions for new buildings, renovations and restorations to prevent damage from moisture, water and fire and to ensure the tightness of buildings.

Sealing & Insulation
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Iso-Fuga GmbH Logo

Iso-Fuga GmbH 

Basel · Since 1995

The core activity of iso-fuga GmbH is the execution of joint and sealing works, particularly in the areas of: Silicone and hybrid joints, thermal insulation, building sealing, and injection. The company offers solutions for various fields of application, such as: Silicone joints in bathrooms, connection joints on precast concrete elements, sealing on clinker, silicone joints in the marble area, joints on construction glazing elements, and joints on windows and door elements. iso-fuga GmbH positions itself as a specialist for joint and sealing works and offers its customers solutions for individual problems up to large-scale construction projects and special tasks.

Sealing & Insulation
View profile3.7(3)
Isol Pro Mehmeti Sàrl Logo

Isol Pro Mehmeti Sàrl 

Vuadens · Since 2018

The core activity of Isol Pro Mehmeti Sàrl is the planning and execution of insulation work, particularly in the field of thermal, acoustic and fire-resistant insulation of buildings and facilities. This includes the insulation of pipelines, the prevention of condensation and the guarantee of energy efficiency and safety. The company offers customized solutions for various projects, ranging from small repair work to large construction projects.

Sealing & Insulation
View profile2.7(3)
ISOPERMAPROOF AG Logo

ISOPERMAPROOF AG 

Thusis · Since 1999

The company offers a wide range of services in the field of construction and maintenance technology. The core activities include: concrete repair and sealing of dams, infrastructure buildings and other concrete structures; shotcrete work, including reinforcement nets, load-bearing capacity enhancement, injections and cavity filling; masonry restoration; special concrete forms; slope stabilization; corrosion protection of steel structures through coating systems; floor coatings for various application areas, such as workshops, production halls, storage areas, parking areas, offices and wet rooms; structural reinforcement; and liquid plastic sealing. The company also provides consulting, analysis, solution development and implementation of these services.

Building Construction
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ISO-SIL Fugendichtungen Vincenzo Reda Logo

ISO-SIL Fugendichtungen Vincenzo Reda 

Neuenhof · Since 2013

The core activity of Steinteppich Reda is the manufacture and distribution of stone carpets, particularly made of marble, as flooring for private and commercial spaces.

Sealing & Insulation
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Iso-technique Sàrl Logo

Iso-technique Sàrl 

Matran · Since 2012

The core activity of ISO Technique SA is the execution of insulation work on various installations such as: sanitary pipes, heating systems, ventilation, refrigeration systems, reservoirs, chimneys, soundproofing, fire-stopping and acoustic systems. The company offers these services for new buildings and renovations, guaranteeing optimal thermal insulation, financial savings, fire protection and sound protection.

Sealing & Insulation
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Isotech Ticino SA Logo

Isotech Ticino SA 

S. Antonino · Since 1999

The core activity of Isotech Ticino SA is to provide services and solutions in the construction industry, particularly in the areas of: * Pavement systems for various applications such as sports, industry, healthcare and parks * Waterproofing for buildings and facilities * Concrete restoration * Static reinforcement with carbon fibers * Design assistance The company thus offers a wide range of services and solutions for the construction industry, from planning and consulting to the execution of work in the areas of pavement systems, waterproofing and structural engineering.

Sealing & InsulationSpecialized Construction ActivitiesFlooring & Tiling
View profile4.7(3)
Isotop AG Logo

Isotop AG 

Wald Zh · Since 2003

The company specializes in the planning, design and execution of facade work, interior and exterior plastering, plastering, natural stone and ceramic tile cladding, as well as renovation and restoration of old buildings. The core activity includes consulting, planning and execution of high-quality facade and interior design, including the processing of natural stones, ceramic tile cladding and other materials, with the aim of creating aesthetically pleasing and functional spaces.

Sealing & InsulationFlooring & TilingPainting & Plastering
View profile3.7(3)
Iten Bewässerungen Logo

Iten Bewässerungen 

Sattel · Since 2015

The core activity of ITEN BEWÄSSERUNGEN is the planning, installation and construction of automated irrigation systems for plants, with the aim of promoting efficient water management and supporting healthy plant growth.

Horticulture & Landscaping
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iten landschaftsarchitekten ag Logo

iten landschaftsarchitekten ag 

Unterägeri · Since 2010

The core activity of the company 'Iten Landschaftsarchitekten GmbH' is the planning and design of green spaces, including the revitalization of existing facilities and the creation of new neighborhoods and public spaces, taking into account aesthetic, ecological and functional aspects.

Architecture Firms
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Iten u. Henggeler, Holzbau AG Logo

Iten u. Henggeler, Holzbau AG 

Morgarten · Since 1980

The core activity of Iten & Henggeler Holzbau AG is the planning and carpentry business with a focus on timber construction, including architecture, element construction, renovations, interior finishing, staircase construction, roof windows, facade construction, joinery, scaffolding, contract carpentry and crane services.

Building MaintenanceInterior ConstructionScaffolding
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Ivo Giger AG Logo

Ivo Giger AG 

Bütschwil · Since 1999

The core activity of Ivo Giger AG is the manufacture, assembly and servicing of shutters and roller shutters, including slat shutters, roller shutters, vertical awnings, interior shading systems and insect screens.

Specialized Construction Activities
View profile4.7(3)
Jacques Lachat paysagiste Logo

Jacques Lachat paysagiste 

Villeret · Since 2012

The core activity of Jacques Lachat Paysagiste is the creation and maintenance of gardens, including the planning, design and upkeep of outdoor spaces.

Horticulture & Landscaping
View profile4.7(3)
Jägli und Schneider AG Logo

Jägli und Schneider AG 

Davos Platz · Since 2011

The core activity of Jägli & Schneider AG is the execution of conversions and renovations as well as various construction works, including plastering, drywall installation, masonry, concrete restoration, dry construction, facade construction and poured floors.

Building ConstructionFlooring & TilingPainting & Plastering
View profile2.3(3)
Jardibois, Nello Albisetti Logo

Jardibois, Nello Albisetti 

Bex · Since 2005

The core activity of Jardibois is to provide services in the field of horticulture, landscaping and forestry, particularly: garden maintenance and design, landscape design and maintenance, tree felling, tree pruning, hedge trimming and other gardening work. The company offers these services in the Chablais region and has been active in the industry since 2005.

Horticulture & Landscaping
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Jardins Alexandre SA Logo

Jardins Alexandre SA 

Belfaux · Since 2007

The core activity of Jardins Alexandre SA is the planning, implementation and maintenance of outdoor facilities, particularly in the field of landscape gardening and wood construction. This includes the construction of terraces, stairs, pergolas, fences, pools and other outdoor facilities, often in combination with wooden structures. The company also offers a "clef en mains" service, where it takes over the entire project planning and implementation, including collaboration with partners and suppliers.

Horticulture & Landscaping
View profile4.7(3)
Jardins Suspendus Civitillo Logo

Jardins Suspendus Civitillo 

Préverenges · Since 2022

The company 'Jardins Suspendus' offers services in the field of landscape design and gardening. The core activities include: planning and design of outdoor spaces (Etudes et Aménagements extérieurs), creation of organic gardens (Potager BIO), coaching and consulting for garden owners, automated irrigation systems (Arrosage automatique), and garden maintenance (Entretien). The company focuses on ecological and sustainable solutions and provides individual services for private individuals and companies.

Horticulture & Landscaping
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J. Bachmann AG Logo

J. Bachmann AG 

Brittnau · Since 1990

The core activity of J. Bachmann AG encompasses three main areas: 1. **Excavation work**: The company performs excavation work of all kinds, including excavation, demolition and environmental work, with a modern machine park. 2. **Landscaping**: The company offers landscaping services, such as garden redesign, construction of retaining walls, parking lots and seating areas. 3. **Renovations**: The company carries out building renovations, including core renovations of old buildings, and also offers construction management and project planning for renovation projects. Overall, the company focuses on providing services in the construction and landscaping sectors.

Horticulture & LandscapingSite PreparationTimber Construction & Carpentry
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J-C. S. Sciage SA Logo

J-C. S. Sciage SA 

Attalens · Since 2009

J-C. S. Sciage SA provides concrete cutting and drilling services, including slab and joint sawing, diamond coring, milling, demolition and structural reinforcement.

Site Preparation
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JENZER KÜCHEN / SCHREINEREI Logo

JENZER KÜCHEN / SCHREINEREI 

Büren An Der Aare · Since 2013

The company Jenzer Küchen is primarily engaged in the planning, manufacture and installation of individual kitchens, furniture and interior fittings. This also includes carpentry work and the sale of branded kitchens.

Interior Construction
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Jenzer + Partner AG Logo

Jenzer + Partner AG 

Aarberg · Since 1997

The core activity of Jenzer+Partner AG encompasses planning, design, implementation and consulting in the fields of architecture and civil engineering, particularly in the construction of swimming pools, sports facilities, high-rise buildings and underground structures, as well as the preparation of expert opinions and reports.

Architecture Firms
View profile3.7(3)
J. Ettlin GmbH Logo

J. Ettlin GmbH 

Alpnach Dorf · Since 1998

The core activity of J.Ettlin GmbH encompasses the planning, architecture and construction management of single and multi-family homes, renovations, extensions, commercial buildings, as well as the delivery and installation of wind and weather-resistant aluminum conservatories.

Architecture Firms
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JKuonen baut GmbH Logo

JKuonen baut GmbH 

Susten · Since 2023

The core activity of JKuonen baut GmbH is building and executing masonry work, including related services such as construction management, scaffolding, painting and plastering.

Building Construction
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JMarti Sàrl Logo

JMarti Sàrl 

Cugy Fr · Since 2019

JMarti Sàrl provides exterior landscaping and civil-engineering services such as paving, terrace restoration, retaining walls, fence installation and pipeline works. The company also performs earthmoving, playground construction and property maintenance and operates throughout French-speaking Switzerland.

Civil Engineering
View profile5(3)
JMD Romay Bau GmbH Logo

JMD Romay Bau GmbH 

Schaffhausen · Since 2002

JMD Romay Bau GmbH is a construction company that plans and executes conversion, renovation and refurbishment projects. It provides masonry, plastering and tiling services, acts as a general or total contractor and coordinates other trades such as painting, flooring, electrical and sanitary work.

Building MaintenanceMasonry Work
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JM Planung GmbH Logo

JM Planung GmbH 

Thun · Since 2024

JM Planung GmbH is a freelance draughting practice providing architectural planning and drawing services. Its offerings include planning for building-permit submissions, execution (construction) planning, 3D visualizations (Archicad, BIMx) and coordination with authorities and specialist planners.

Architecture Firms
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Jolidon Nicolas Sàrl Logo

Jolidon Nicolas Sàrl 

Glovelier · Since 2005

The core activity of Nicolas Jolidon Sàrl is carpentry and joinery work, particularly traditional and industrial wood processing, the manufacture of wooden structures, the renovation and construction of houses, as well as the construction of industrial and agricultural buildings using wood construction methods.

Timber Construction & Carpentry
View profile4.7(3)
Josef Reichlin Baggerunternehmung KLG Logo

Josef Reichlin Baggerunternehmung KLG 

Alpthal · Since 2017

The company's core activity is the execution of excavation work, particularly in the alpine region, including demolition, dismantling, excavation, river training and snow removal work, as well as the construction of surroundings, stone walls, water intakes and pipelines.

Civil EngineeringSite PreparationMasonry Work
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Josef Rohrer AG Logo

Josef Rohrer AG 

Flüeli-Ranft · Since 1963

The core activity of Josef Rohrer AG is the manufacture and assembly of timber structures, including carpentry, joinery and wooden shelving, as well as the renovation and restoration of existing timber buildings. The company also provides individual consulting and support for customers and develops tailored solutions to meet their needs.

Interior ConstructionTimber Construction & Carpentry
View profile3.7(3)
Josef Wyss AG Logo

Josef Wyss AG 

Büron · Since 1994

The core activity of Josef Wyss AG is the production and processing of wood products, particularly in the sawmill and planing sector. The company produces a wide range of wood products, including lumber, planed wood, pallets and packaging materials, as well as by-products such as wood chips, sawdust and bark mulch.

Timber Construction & Carpentry
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Josef Ziltener Innenausbau AG Logo

Josef Ziltener Innenausbau AG 

Winterthur · Since 1986

Josef Ziltener Innenausbau AG is a carpentry workshop that manufactures interior fittings and custom-made furniture. Services include kitchens, shopfitting, wall and ceiling cladding, and maintenance and repair work, using wood as well as metal, glass and lighting components.

Interior Construction
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Jost Deckenbau AG Logo

Jost Deckenbau AG 

Bauma · Since 2021

The core activity of Jost Deckenbau AG is the planning, consulting and execution of ceiling construction systems, carpentry and interior finishing, including the installation and integration of various types of ceilings such as metal, plaster, wood and panel ceilings, as well as the design of wall claddings and acoustic ceilings.

Interior Construction
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JPA ANTORINI ARCHITETTI Sagl Logo

JPA ANTORINI ARCHITETTI Sagl 

Viganello · Since 2014

The core activity of JPA Antorini Architetti SAGL is the provision of architecture and design services, particularly in the field of interior architecture and Feng Shui, with the aim of developing innovative and harmonious solutions for building and design projects.

Architecture FirmsGeneral Contractors
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js Baudienstleistungen GmbH Logo

js Baudienstleistungen GmbH 

Rickenbach Lu · Since 2010

The core activity of JS Baudienstleistungen GmbH is the provision of services in the field of construction, particularly: construction management, owner consulting, cost estimation, and quantity surveying. The company supports customers in the planning and execution of construction projects, including new buildings, renovations, and demolition work.

Construction & Project Management
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Jucker AG Logo

Jucker AG 

Pfäffikon Zh · Since 1989

The core activity of Jucker AG is the planning, execution and maintenance of pipeline and plant construction projects, particularly in the areas of water supply, district heating, gas pipeline construction and industrial piping. This includes, among other things, pipeline construction, plant construction, line construction and piping, as well as the creation of customized solutions for industrial and large-scale enterprises and public institutions.

Civil Engineering
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Julien Aubert Intérieurs Logo

Julien Aubert Intérieurs 

Rolle · Since 2015

The core activity of Julien Aubert Interieurs is the provision of services in the field of interior decoration and architecture, including: interior decoration and architecture, construction site supervision, selection of fabrics and furniture, and brokerage of antiques and art objects. The company also offers consulting and support services for the selection of furniture, curtains and other decorative items.

Architecture FirmsInterior Design & Furnishing
View profile4.3(3)
Jüngling Hagmann Partner AG Logo

Jüngling Hagmann Partner AG 

Chur · Since 1999

Jüngling Hagmann Partner AG is an architecture firm that provides design, planning and project management services for buildings in sectors such as education, administration, housing, healthcare and correctional facilities, and undertakes renovations of protected heritage buildings.

Architecture Firms
View profile4.3(3)
Jürg Ehrat GmbH Logo

Jürg Ehrat GmbH 

Neuhausen Am Rheinfall · Since 1997

Ehrat Fire is a specialist store for fireplaces, fireplace stoves and soapstone stoves. The company's core activity includes the sale, installation and servicing of fireplaces, stoves and soapstone stoves, as well as the execution of conversions and repairs in this field.

Specialized Construction Activities
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JvB Bauleitungen GmbH Logo

JvB Bauleitungen GmbH 

Stans · Since 2000

The core activity of JvB Bauleitungen GmbH is the provision of services in the field of construction management, particularly in construction management, cost planning, tendering and consulting for building owners in Central Switzerland.

Construction & Project Management
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Kaiser Holzbau GmbH Logo

Kaiser Holzbau GmbH 

Belp · Since 2011

The core activity of Kaiser Holzbau GmbH is carpentry and timber construction, particularly the planning and execution of timber construction projects, including joinery, facades, interior finishing, renovations and the construction of mobile homes.

Timber Construction & Carpentry
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KAIUS Sàrl Logo

KAIUS Sàrl 

Torny-Le-Grand · Since 2019

KAIUS is an architecture and real estate consulting firm offering a wide range of services, including: Expertise: Accompanying the acceptance of buildings, technical expertise and financial evaluation; Architecture: Development of architectural projects, transformation and renovation of buildings, energy efficiency measures; Realization: Planning, execution and completion of construction projects. Thus, KAIUS provides comprehensive consulting and support for real estate projects, from planning to realization.

General Contractors
View profile5(3)
mawikälin sa Logo

mawikälin sa 

Lausanne · Since 1982

Kälin & Associés SA is a civil engineering firm providing structural design and construction engineering services for buildings and civil works. Its activities include structural work in timber, steel, concrete, CFUP and masonry, new construction, renovation and vertical extension projects, assessment and expertise of existing structures, seismic analysis, and conservation and restoration of historic monuments and 20th‑century works.

Civil Engineering Firms
View profile4.3(3)
Kambium Holzbau AG Logo

Kambium Holzbau AG 

Bassersdorf · Since 2017

The core activity of Kambium Holzbau AG is timber construction, particularly the planning, manufacturing and assembly of timber buildings, timber structures and timber cladding for residential, industrial and agricultural buildings. This also includes renovations, extensions, roof extensions and the production of timber element buildings. The company also offers consulting and planning services for architects and builders.

Timber Construction & Carpentry
View profile4.7(3)
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Frequently asked questions

Searching the directory

How the search works, what each filter means, and how the results come together.

What can I search for in the directory?
The search field matches company names, industries and places. Beyond that you can filter by Industry (18 categories based on the NOGA classification), Size (number of employees), Region (canton, language region or postal code) and Special (keywords and entry date). Filters combine freely; the active ones appear as chips below the filter bar and can be removed there individually.
How do keywords work?
Keywords search the description and stated purpose of each company — the text that goes beyond the company name. Multiple keywords are combined with OR: every additional keyword widens the set of matches rather than narrowing it.
What belongs in the postal code field?
A single postal code (e.g. 8000) or a range (e.g. 1000-1010). The field accepts postal codes only — for place names, use Canton or Language region.
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How is organisation size determined?
Size reflects the number of employees and is calculated from publicly available information by a model developed in-house. It is a best-possible estimate, not an official figure.
What does the Verified label mean?
Verified means the entry is tied to a UID (Swiss business identification number) and therefore links back to the official Swiss business register. The label speaks to the company's identity — it is not a rating of its performance.

Source: Federal Statistical Office, UID register

How do I sort the results?
Use the dropdown above the list: Relevance, Name (A–Z), Best rating, Most reviews or Longest established. You can also switch between list and map view and set how many results appear per page.