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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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IndustryConstruction & Architecture
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48'323 companies found

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
View profile5(2)
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
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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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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.
Per page
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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.