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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,378 companies indexed · Last updated: today
DirectoryConstruction & Architecture

Construction & Architecture

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48'131 companies found

Dazio Engineering & Consulting Sagl Logo

Dazio Engineering & Consulting Sagl 

Cadenazzo · Since 2010

Dazio Engineering & Consulting Sagl provides engineering design, construction management and consultancy services for railway systems, structural engineering (bridges, tunnels, industrial buildings), road alignments and infrastructure, and natural hazard protection works. Its services also include GPS and photogrammetric surveys, seismic engineering consulting and building management advice.

Civil Engineering Firms
View profile5(2)
DEBONS ARCHITECTURE SA Logo

DEBONS ARCHITECTURE SA 

Martigny · Since 2005

DEBONS ARCHITECTURE SA designs and oversees building projects at various scales, including renovations, private villas, residential and administrative buildings, and larger complexes such as sports, social and medical facilities. Services include feasibility studies, definitive design and specifications, execution plans, construction management, cost monitoring and handover/commissioning.

Architecture Firms
View profile4(2)
Debons Armand SA Logo

Debons Armand SA 

Martigny · Since 2015

Debons Armand SA is an architectural practice that designs and oversees projects ranging from small renovations, family villas and residential or administrative buildings to large complexes such as sports, social and medical facilities. Services include feasibility studies, detailed design and execution plans, construction management, cost monitoring, handover and commissioning, with integrated general-contractor offers available through partner Sogecoma SA.

Architecture Firms
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Décorénov Sàrl Logo

Décorénov Sàrl 

Coinsins · Since 2008

Décorénov is a specialist in renovations and conversions of residential and commercial spaces. The core activities include planning, execution and supervision of projects in the areas of: Painting & Partitioning, Kitchen & Bathroom Renovations, Flooring & Wall Coverings, and Façade Works. The company offers a comprehensive service, ranging from consulting and planning to execution and acceptance.

Interior Construction
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Degen Hettenbach & Partner Logo

Degen Hettenbach & Partner 

Therwil · Since 1991

The core activity of the company "degen hettenbach & partner" is the planning and realization of ecological construction projects, particularly in the field of sustainable building and earth construction. This includes consulting and planning for new buildings, renovations, and refurbishments, as well as spatial design and interior architecture. The company also offers construction consulting and condition assessments of properties.

Architecture Firms
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De Giovannini S.A. Logo

De Giovannini S.A. 

Lausanne · Since 1992

The company is an architectural firm specializing in the planning and realization of construction projects. Its core activities include the creation of architectural projects, project management, coordination of construction projects, and consulting services for building owners. The company offers its services in several languages and has offices in Geneva, Lausanne, and Berlin.

Architecture Firms
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dein Bau-Projekt GmbH Logo

dein Bau-Projekt GmbH 

Muhen · Since 2022

The core activity of the company "dein Bau-Projekt GmbH" is the planning and construction management of building projects, particularly in the field of high-rise construction, including reinforced concrete structures, renovation and new construction.

General Contractors
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Demarmels Schreinerei AG Logo

Demarmels Schreinerei AG 

Salouf · Since 1981

The company's core activity is carpentry, particularly the processing of wood for the manufacture of furniture, doors, stairs and other wood products, as well as the execution of renovation and refurbishment work.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
View profile4.5(2)
Demontagen plus AG Logo

Demontagen plus AG 

Buochs · Since 2020

The core activity of Demontagen plus AG is the execution of dismantling and clearing of decommissioned facilities, installations, apartments, office spaces and industrial plants, including the disposal and, if applicable, recycling of the resulting waste.

Site PreparationWaste Management Industry
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DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH Logo

DENKMALWERKSTATT - Büro für Denkmalpflege und Baugeschichte GmbH 

Zurich · Since 2018

The core activity of DENKMALWERKSTATT is monument preservation and building history, particularly in the planning, analysis, documentation, research and implementation of high-quality, sustainable architecture and historic buildings. The company is dedicated to preserving cultural heritage in the form of buildings, gardens and other historic sites, and offers services such as creating inventories and expert opinions, developing room books and building documentation.

Architecture Firms
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DENTAL SERVICES Sàrl Logo

DENTAL SERVICES Sàrl 

Savièse · Since 2009

The core activity of Dental Services Sàrl is the installation, design, implementation and maintenance (SAV) of dental practices and cabinets, including consulting and planning in the areas of ergonomics and compliance with standards.

Specialized Construction Activities
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Deon AG Logo

Deon AG 

Schlieren · Since 2006

Building Construction
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Deon Architekten AG Logo

Deon Architekten AG 

Lucerne · Since 1999

Architecture Firms
View profile4.5(2)
Deplazes & Partner GmbH Logo

Deplazes & Partner GmbH 

Chur · Since 2008

The core activity of Deplazes Partner GmbH is the provision of civil engineering services, particularly in the areas of: structural engineering, high-rise construction, exposed concrete, timber construction, reinforcement, bridge construction, special foundation engineering, natural hazards, energy and building physics. The company thus offers comprehensive services in the field of construction, from planning to execution of construction projects.

Technical Consulting & EngineeringCivil Engineering Firms
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design-atelier kohler Logo

design-atelier kohler 

Siviriez · Since 2023

The core activity of Design-Atelier Kohler is the creation of high-quality, handmade products and services in the field of interior design, metal construction and design. This includes, in particular: * Craftsmanship, such as assembly and interior design * Work with epoxy resin * Metal and woodwork * Upcycling projects * Design services The company also operates a shop where customers can purchase products.

Industrial & Product DesignInterior Construction
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Designbuero GmbH Logo

Designbuero GmbH 

Zurich · Since 2004

The company is a furniture manufacturer specializing in the production of modular furniture. The core activity includes the design, manufacture, and sale of furniture, particularly desks, shelves, sideboards, wardrobes, and tables. The furniture is produced in Switzerland or in nearby foreign countries and assembled in Zurich. The company also offers a configurator on its website, allowing customers to design and order their own furniture.

Industrial & Product DesignInterior Construction
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DESIGNFUNKTION AG Logo

DESIGNFUNKTION AG 

Weiningen Zh · Since 2002

The core activity of Designfunktion AG is the architecture and general planning of new and interior construction projects for commercial properties and residential buildings, including project development, detailed studies, execution planning and comprehensive project management.

Architecture Firms
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DG Norma Sàrl Logo

DG Norma Sàrl 

Gland · Since 2022

The core activity of DG Norma is the supply and installation of exterior joinery, including windows, doors, display cases, garage doors, railings and other wood and aluminum works for the exterior of buildings.

Interior Construction
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DIAM SA Logo

DIAM SA 

Lausanne · Since 2016

DIAM SA is an architecture practice that develops and delivers projects of varying scales and programs, including social housing, housing cooperatives and assisted living for seniors. The practice integrates sustainability considerations from the project outset and emphasises design quality, execution details and cost control in collaboration with clients.

Architecture Firms
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Dias Architecture Sàrl Logo

Dias Architecture Sàrl 

Lausanne · Since 2024

The core activity of Dias Architecture Sàrl is the provision of architectural services, including: * Conceptualization and planning of construction projects * Consulting and advisory services for building owners * Conducting studies and analyses for construction projects * Transformations and renovations of existing buildings * New construction of buildings, including residential houses, office buildings, hotels, and restaurants * Creation of 3D models and visualizations for construction projects The company offers its services for various types of construction projects, including residential houses, office buildings, hotels, restaurants, and other commercial establishments.

Architecture Firms
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Didier Lannaz Jardins & Forêts Sàrl Logo

Didier Lannaz Jardins & Forêts Sàrl 

Ecublens Vd · Since 2006

Didier Lannaz Jardins & Forêts Sàrl provides landscaping and garden services including lawn renovation, tree felling and pruning, and forestry work. The company also performs maintenance for industrial sites and municipalities and supplies firewood.

Horticulture & Landscaping
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DIEMPLAN GmbH Logo

DIEMPLAN GmbH 

Watt · Since 2000

The core activity of Diemplan GmbH is the creative processing of wood. The company manufactures everything that can be made from wood and masters the handling of all types of wood. The activities include, among other things, wood construction, the production of statues and figures, as well as the processing of wood for facades, ceilings and walls.

Timber Construction & CarpentryRoofing
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Diem Schweisstechnik GmbH Logo

Diem Schweisstechnik GmbH 

Dietikon · Since 2016

The core activity of Diem Schweisstechnik GmbH is the provision of services in the field of welding technology, including competent consulting and the application of various welding processes for the manufacture of parts and workpieces in different sizes and series.

Specialized Construction Activities
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Die Umbauleiter AG Logo

Die Umbauleiter AG 

Uster · Since 2023

The core activity of the company 'Die Umbauleiter AG' is the planning, management and execution of renovation and refurbishment projects in the construction industry, particularly for private and public building owners. This includes the creation of individual cost estimates, coordination of trades, renovation planning, management and execution, as well as the refurbishment of existing buildings.

Architecture FirmsConstruction & Project Management
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DILA Bauplanung GmbH Logo

DILA Bauplanung GmbH 

Olten · Since 2021

The core activity of DILA Bauplanung GmbH is construction management, particularly the planning, coordination and supervision of high-rise construction projects, including cost planning, owner consulting, condition analyses, feasibility studies, construction accounting and warranty work.

Architecture FirmsConstruction & Project Management
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DIMU BAUmanagement GmbH Logo

DIMU BAUmanagement GmbH 

Weinfelden · Since 2005

The core activity of DIMU BAUmanagement GmbH is the provision of services in the field of architecture and construction management, including concept studies, consulting, property analyses, project development, implementation, cost management and client representation.

Owner's RepresentativeReal Estate Project Development
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Direzione Lavori SA Logo

Direzione Lavori SA 

Lugano · Since 1962

Construction & Project ManagementOwner's Representative
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Diversifolium - Simona Zahner Logo

Diversifolium - Simona Zahner 

Netstal · Since 2022

The core activity of Diversifolium encompasses consulting and services in the areas of tree care, agroforestry systems, biodiversity, and garden consulting. Specifically, the company offers the following services: * Tree care: expert assessment, species selection, planting, young tree care, crown care, and risk management * Agroforestry systems: planning, planting, and maintenance of agroforestry systems that combine agriculture and forestry * Biodiversity: biodiversity analysis, promotion of species diversity, and development of strategies for the conservation of ecosystems * Garden consulting: design of ecologically valuable gardens, selection of native plants, creation of habitats for native animals, and planning of edible gardens and forest gardens. The company focuses on promoting biodiversity and creating sustainable, future-proof ecosystems.

Agricultural ServicesHorticulture & Landscaping
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DKS Vermessung & Planer AG Logo

DKS Vermessung & Planer AG 

Basel · Since 2010

The core activity of DKS Vermessung & Planer AG is the provision of surveying and planning services in the fields of construction, engineering and industrial surveying. This includes in particular: 3D laser scanning, construction and engineering surveying, crack records and crack monitoring, facade surveying, drone surveying, deformation and subsidence surveying, and surveying of traffic infrastructure. The company offers these services for small and complex projects and has the most modern instruments and know-how to carry out highly precise measurements.

Specialized Construction Activities
View profile4.5(2)
dl-c, designlab-construction sa Logo

dl-c, designlab-construction sa 

Geneva · Since 2012

The core activity of dl-c (designlab-construction s.a.) is architecture and construction management, as they are looking for an architect for site management and are referred to as a Design Lab.

Architecture Firms
View profile3(2)
DMA Ingénieurs SA Logo

DMA Ingénieurs SA 

Fribourg · Since 1989

DMA Ingénieurs SA is an engineering firm specializing in the planning and implementation of infrastructure projects. The core activities include: construction and renovation of buildings (schools, residential buildings, office buildings, hospitals, etc.); planning and implementation of transportation infrastructure (train stations, roads, bridges, etc.); civil engineering (construction of tunnels, canals, etc.); water management (water and wastewater supply, etc.); environmental technology (wastewater treatment, etc.); and structural analysis and earthquake safety. The company also provides services in the areas of project development, construction management and supervision.

Civil Engineering Firms
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DNA Laser GmbH Logo

DNA Laser GmbH 

Moutier · Since 2017

The core activity of DNA Laser GmbH is the application of laser technology for micro-applications, particularly in the areas of: Laser Drilling, Laser Cutting, Laser Welding, Laser Engraving, Laser Marking, and processing of Sapphire and Ceramic. The company also offers services such as process development, optimization, and training for these applications.

Specialized Construction Activities
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Domest AG Logo

Domest AG 

Rorbas · Since 2010

The core activity of Domest AG is the provision of architectural and planning services, particularly in the field of construction and project development. This includes the creation of building submissions, execution plans, project and construction management.

Architecture Firms
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Dominic Schmid GmbH Logo

Dominic Schmid GmbH 

Winterthur · Since 2011

Dominic Schmid GmbH is an architectural practice offering project planning and construction management. The practice works on residential, commercial and public buildings and provides renovations, conversions, feasibility and potential studies as well as consulting services.

Architecture Firms
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Domus Hauswartungen GmbH Logo

Domus Hauswartungen GmbH 

Tuggen · Since 2015

The core activity of Domus Hauswartungen GmbH is the professional management and maintenance of properties, including regular cleaning, repairs, maintenance work, upkeep and gardening.

Building Maintenance
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Dorfschreinerei Heinz Althaus Logo

Dorfschreinerei Heinz Althaus 

Hettiswil B. Hindelbank · Since 1994

The core activity of Dorfschreinerei Althaus is the planning, production and installation of kitchens, bathroom furniture and other interior fittings, including windows, doors and flooring. The company also offers custom-made products and works with a network of external partners to provide comprehensive solutions for its customers.

Interior Construction
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Dorfschreinerei Andermatt GmbH Logo

Dorfschreinerei Andermatt GmbH 

Andermatt · Since 1998

The core activity of Dorfschreinerei Andermatt GmbH is the manufacture and installation of wood products for the construction and interior design sector, particularly: kitchens, flooring, doors, stairs, walls and ceilings, built-in cupboards, custom-made furniture, bathroom furniture, windows and shutters, pleated curtains and roller blinds, glasswork, locking systems, and repairs of all kinds. The company also offers services such as planning, sales, and installation.

Timber Construction & CarpentryJoinery
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Dörig & Brülisauer GmbH Logo

Dörig & Brülisauer GmbH 

Appenzell Schlatt · Since 1998

The core activity of Dörig Brülisauer GmbH is timber construction, specifically planning, project management, structural engineering, surveying, carpentry, joinery, and the implementation of timber construction projects, including residential construction, renovation, facades, agricultural construction, commercial construction, and decking.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
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Dörig Bedachungen Fassadenbau AG Logo

Dörig Bedachungen Fassadenbau AG 

Berg Tg · Since 1978

Dörig Bedachungen Fassadenbau AG is a construction company specializing in the planning, manufacture and installation of facades and roofing. The core activities include the creation of facades made from various materials such as glass fiber concrete, concrete, corrugated sheets and flat sheets, as well as the execution of roofing, including pitched and flat roofs.

Building ConstructionBuilding Maintenance
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Doswald Raum und Handwerk AG Logo

Doswald Raum und Handwerk AG 

Zug · Since 1989

The core activity of the company "Doswald Raum+Handwerk AG" is interior decoration and the provision of services and products in the field of spatial design, including: Consulting and planning of interior designs, manufacturing and sale of upholstered furniture, curtains and other decorative items, sale of flooring, lamps and other interior design products, execution of work in its own upholstery and sewing studio or on-site at customers. The company thus offers a comprehensive range of services and products for the design and furnishing of rooms.

Architecture Firms
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Doutaz C. et fils SA Logo

Doutaz C. et fils SA 

Pringy · Since 2000

The core activity of Doutaz C. & Fils SA encompasses three main areas: 1. **Demolition**: The company carries out demolition work on various structures, prioritizing safety and efficiency. 2. **Recycling**: As part of a sustainable approach, the company recycles materials from demolition sites to reuse them. 3. **Earthworks – Civil Engineering**: Doutaz C. & Fils SA performs earthworks, including excavations, adjustments, and road construction, to meet customer needs.

Site Preparation
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Dozza Bau AG Logo

Dozza Bau AG 

Küsnacht Zh · Since 1989

The core activity of Dozza Bau AG is the construction industry, particularly the new construction and renovation of real estate, including residential construction, exposed masonry, industrial and commercial construction, as well as specialized concrete construction.

Building ConstructionBuilding MaintenanceSite Preparation
View profile3(2)
Dreier Korntheuer Architekten AG Logo

Dreier Korntheuer Architekten AG 

Büsserach · Since 2008

The company provides architectural and planning services, particularly in the areas of new buildings, conversions, renovations, interior design and outdoor spaces. They advise clients on the planning and implementation of construction projects, including coordination with specialist planners, authorities and contractors.

Architecture Firms
View profile4.5(2)
Dreilinden AG Logo

Dreilinden AG 

Baar · Since 1958

The core activity of Dreilinden AG encompasses two main areas: 1. **Architecture and Execution**: The company offers services in architectural planning, including development, studies, building submission, execution planning, detailed planning, model making, and project presentation. Additionally, it provides project management, construction management, construction consulting, owner representation, construction law consulting, and construction expertise. 2. **Real Estate**: The company offers real estate services, including valuation and brokerage of properties. The company positions itself as an architectural firm and general contractor, offering individual solutions to its clients.

Architecture FirmsOwner's RepresentativeReal Estate Brokerage
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Drescher Holzbau/Lehmbau KLG Logo

Drescher Holzbau/Lehmbau KLG 

Rickenbach Zh · Since 2015

The core activity of Drescher Holzbau/Lehmbau is the provision of services and products in the field of timber construction and clay construction, including: Timber construction: carpentry work, roof, floor and wall construction, skylight, window and door installation, joinery work, flooring, terraces and pergolas. Clay construction: clay plastering, clay construction, renovation of single-family and multi-family houses, roof extensions. Furniture making: production of furniture, shells, lamps and sculptures. CAD work: creation of 3D and 2D drawings, visualizations, CAD connections and building input plans. Outdoor space design: design of outdoor spaces, including raised beds and cat trees. The company also offers a comprehensive customer service, including consulting and planning of conversions, extensions and interior and exterior design.

Timber Construction & Carpentry
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dr gschaffig GmbH Logo

dr gschaffig GmbH 

Buchs Ag · Since 2019

The core activity of the company "dr gschaffig GmbH" is carpentry and assembly, including conversion, house building, interior finishing, kitchen construction, renovations and dismantling, as well as the manufacture and installation of doors, windows, terrace floors and other wood products for private and commercial customers.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
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D & S Paysages Sàrl Logo

D & S Paysages Sàrl 

Orges · Since 2014

The core activity of D&S Paysages Sàrl is the design, maintenance and upkeep of gardens and outdoor spaces, including tree care (Elagage), maintenance (Entretien) and garden creation (Création de jardin).

Horticulture & Landscaping
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Dual Architekten BSA Gesellschaft mbH Logo

Dual Architekten BSA Gesellschaft mbH 

Solothurn · Since 2014

The core activity of the company Dual is architecture.

Architecture Firms
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Dubach Holzinger Architekten AG Logo

Dubach Holzinger Architekten AG 

Zurich · Since 2011

Dubach Holzinger Architekten AG is an architectural practice working on residential, commercial and office projects as well as architectural competitions. The firm provides design and project services for new-builds, renovations, conversions and office fit-outs, including timber construction and industrial/production buildings.

Architecture Firms
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Duckert SA Logo

Duckert SA 

Cortaillod · Since 1969

Duckert SA is a construction company providing building, civil engineering, road maintenance and related services. The firm carries out masonry and reinforced-concrete work as well as specific construction tasks and on-site services.

Building ConstructionCivil Engineering
View profile4.5(2)
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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.