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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

Nerozzi + Rösch AG Logo

Nerozzi + Rösch AG 

Nesselnbach · Since 1996

The core activity of Nerozzi + Rösch is carpentry, particularly interior finishing, kitchen construction and door manufacturing, as well as planning and project management in the field of wood processing. The company also offers services such as designing living spaces, manufacturing furniture and implementing customer requests in wood processing.

Interior ConstructionJoineryFurniture Industry
View profile5(5)
Nickl & Partner Architekten Schweiz AG Logo

Nickl & Partner Architekten Schweiz AG 

Zurich · Since 2014

Nickl & Partner Architekten Schweiz AG is an architectural firm that plans and manages projects in healthcare, research, education and urban development. The practice provides planning, integration, construction management and consulting with an emphasis on sustainability, modular design and the integration of art in buildings; their BSS laboratory building for ETH Zürich received DGNB Gold certification.

Architecture Firms
View profile4.2(5)
Nika Wärmetechnik GmbH Logo

Nika Wärmetechnik GmbH 

Moosseedorf · Since 2020

The company provides services and solutions in the field of building technology, particularly in the areas of heating, plumbing, refrigeration and water treatment. It develops and installs efficient and sustainable systems for private households and companies to meet their energy needs while promoting environmental protection. In addition, the company offers service and maintenance, planning and consulting, as well as repair and maintenance to ensure the longevity and efficiency of the installed systems.

Building MaintenancePlumbing & Building Services
View profile5(5)
Nikim Aqua AG Logo

Nikim Aqua AG 

Port · Since 2020

The core activity of Nikim Aqua is the provision of sanitary services, particularly in the areas of bathroom and kitchen renovations, including chemical pipe decalcification, complete bathroom and kitchen renovations, as well as the coordination of various trades and the organization of tiles, fixtures and other materials.

Construction & Project ManagementPlumbing & Building Services
View profile4.8(5)
Nikson Storen GmbH Logo

Nikson Storen GmbH 

Zurich · Since 2019

The core activity of Nikson Storen is the consulting, sales and servicing of awnings, including canopies, roller shutters and blinds. This also includes the repair and renovation of existing awnings, as well as the sale of spare parts and accessories. The company also offers a standby service, providing quick and flexible assistance with awning problems.

Building Maintenance
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NM Holzbau GmbH Logo

NM Holzbau GmbH 

Titterten · Since 2011

The core activity of NM Holzbau GmbH is timber construction and carpentry.

Interior ConstructionTimber Construction & CarpentryRoofing
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Nolè - Schneeberger Architekten & Bewerter AG Logo

Nolè - Schneeberger Architekten & Bewerter AG 

Schaffhausen · Since 1997

The core activity of the company "Nolè Schneeberger Architekten AG" is the provision of architectural services.

Architecture Firms
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Oesch Architektur GmbH Logo

Oesch Architektur GmbH 

Neerach · Since 2011

The core activity of Oesch Architektur GmbH encompasses the planning, construction management and owner representation of real estate projects, including the rental and sale of its own properties, as well as the marketing of apartments and houses for property developers. The company also provides services in the areas of financing and real estate valuation.

Architecture Firms
View profile4.2(5)
Offizin für Architektur GmbH Logo

Offizin für Architektur GmbH 

Zurich · Since 2016

The core activity of the company "Offizin für Architektur GmbH" is the provision of architectural services, including design, project development, project management and client representation. The company offers its services in various fields, including residential, cultural, urban planning, commercial and object-related projects.

Architecture Firms
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one immobilien ag Logo

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.

General Contractors
View profile2.4(5)
Opus Planification SA Logo

Opus Planification SA 

La Chaux-De-Fonds · Since 2019

The core activity of Opus Planification Sàrl is construction management, specifically the direction and project management of construction projects, particularly in the areas of renovation, transformation and new building of real estate.

Construction & Project Management
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Orso Dettling Architekten GmbH Logo

Orso Dettling Architekten GmbH 

Winterthur · Since 2018

Orso Dettling Architekten GmbH is an architecture firm that designs, develops and executes buildings and objects. The practice handles projects in all phases from concept to construction management, emphasizing attention to light, materials and building construction to create sustainable, resource‑conserving spaces with strong spatial quality.

Architecture Firms
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Othmar Stutz Gartenbau GmbH Logo

Othmar Stutz Gartenbau GmbH 

Islisberg · Since 2020

The core activity of Stutz Gartenbau is the planning, implementation and maintenance of gardens, including garden planning, garden conversion and garden maintenance.

Horticulture & Landscaping
View profile4.2(5)
OTT AQUATEC AG Logo

OTT AQUATEC AG 

Pfäffikon Zh · Since 2009

The core activity of OTT AQUATEC AG is the planning, installation and maintenance of irrigation and environmental technology systems, particularly for gardens, terraces, sports facilities, riding arenas, golf courses, fog and water features as well as special projects.

Specialized Construction Activities
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Outsider.Architecture SA Logo

Outsider.Architecture SA 

Morges · Since 1975

The core activity of Outsider Archi is architecture.

Architecture Firms
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OVALE Ingénieurs SA Logo

OVALE Ingénieurs SA 

Châtel-St-Denis · Since 2016

OVALE & Partenaires is a civil engineering firm specializing in the planning, consulting and implementation of construction projects. The core activities include: * Diagnostics and analysis of buildings (structural and seismic) * Compliance adaptation (adaptation to legal regulations) * Feasibility studies for construction projects * Financial analysis of construction projects * Consulting for builders and architects in the realization of sustainable buildings The company thus offers comprehensive services in the field of civil engineering.

Civil Engineering Firms
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Paratore Giardini SA Logo

Paratore Giardini SA 

Banco · Since 2008

The core activity of Paratore Giardini SA is the planning, construction and maintenance of gardens and outdoor spaces in the canton of Ticino. This also includes specialized services such as tree climbing, stone and wood processing, as well as construction work.

Horticulture & Landscaping
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Parpan Holz AG Logo

Parpan Holz AG 

Valbella · Since 1982

Parpan Holz AG is a timber-construction and joinery company that plans and executes roof structures, facades, balconies and interior fit-outs. The company also carries out joinery work, flooring, new builds, renovations and special timber constructions.

Building MaintenanceInterior ConstructionTimber Construction & Carpentry
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Paul Loher Gartenbau GmbH Logo

Paul Loher Gartenbau GmbH 

Oberriet Sg · Since 2001

Paul Loher Gartenbau GmbH is a landscaping and garden construction company offering consultation, design, new installations, remodels and site/earthworks. Services also include garden maintenance, planting, lawn care, tree care and felling, natural stone work, walls and paving, pergolas, water features, playgrounds and privacy/noise-screening solutions.

Horticulture & Landscaping
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Paul Loher Gärtnerei Logo

Paul Loher Gärtnerei 

Oberriet Sg · Since 2004

Paul Loher Gärtnerei provides garden construction and maintenance services, handling planning, new garden installations and redesigns. Services include planting, lawn care, tree work, paving and stonework, as well as water features and play-area installations.

Horticulture & Landscaping
View profile4(5)
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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.