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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryConstruction & Architecture

Construction & Architecture

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IndustryConstruction & Architecture
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48'330 companies found

R. & M. Rezzonico SA Logo

R. & M. Rezzonico SA 

Bissone · Since 1986

R. & M. Rezzonico SA is a construction company operating as a general contractor, providing design, project management and construction services for residential and commercial buildings. Services include renovations and historic building restoration, civil and infrastructure works, maintenance and material transport; the company holds certification to UNI EN ISO 9001:2015.

Construction & Project Management
View profile5(3)
R. Nyffenegger Gartenbau AG Logo

R. Nyffenegger Gartenbau AG 

Köniz · Since 1999

The company's core activity is gardening, particularly the design, maintenance and creation of gardens and green spaces, including the planning and implementation of pond systems, the installation of irrigation systems and the implementation of ecological concepts.

Horticulture & Landscaping
View profile3.7(3)
Röbi Sutter GmbH Logo

Röbi Sutter GmbH 

Appenzell Enggenhütten · Since 2016

The core activity of Röbi Sutter GmbH is the planning and execution of carpentry work as well as joinery installations.

Timber Construction & Carpentry
View profile5(3)
Rocca + Hotz AG Logo

Rocca + Hotz AG 

Zuoz · Since 1988

The core activity of Rocca+Hotz AG is the construction and execution of civil engineering and construction projects, including renovations, conversions, earthworks, interior finishing, plaster renovation, concrete repairs and the installation of thermal insulation systems. The company offers comprehensive services in the construction industry, from planning to execution and billing, and positions itself as a reliable partner for construction projects of all sizes.

Building ConstructionBuilding MaintenanceCivil Engineering
View profile3.3(3)
Roda Naturgärten GmbH Logo

Roda Naturgärten GmbH 

Bauma · Since 2024

The core activity of the company 'Roda Naturgärten' consists of planning, designing, implementing and maintaining gardens and public green spaces, taking into account natural and biological aspects. This includes in particular: garden planning and design, implementation of landscape construction projects, natural and biological maintenance of gardens and green spaces, construction and maintenance of dry stone walls and other garden structures, as well as consulting and supporting customers in the design and maintenance of their gardens. The company positions itself as a specialist in natural and biological garden maintenance and design, and places emphasis on the use of regional and ecological materials.

Horticulture & Landscaping
View profile3.7(3)
Roefs Architekten AG Logo

Roefs Architekten AG 

Zug · Since 2016

Roefs Architekten AG is an architectural practice that provides design, project and execution planning for residential, commercial and public buildings, as well as renovation projects and competition entries.

Architecture Firms
View profile5(3)
R. Oertli GmbH Logo

R. Oertli GmbH 

Netstal · Since 2018

The core activity of R. Oertli GmbH is the execution of civil engineering, environmental and demolition works, including various specific services such as road construction, rock excavation, pipeline construction, contaminated site remediation, stream restoration, mowing work, snow removal, excavation, garden design, retaining walls and natural stone walls.

Civil EngineeringSite Preparation
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Rohbau GmbH Bauabdichtungen Logo

Rohbau GmbH Bauabdichtungen 

Aadorf · Since 2000

The core activity of Rohbau GmbH is the planning, consulting and execution of building sealing, particularly in the areas of joint sealing, joint tapes, injection hoses, bitumen and punctual injections for renovation work.

Sealing & Insulation
View profile3.3(3)
Rohner Bau GmbH Logo

Rohner Bau GmbH 

Engishofen · Since 2008

The core activity of Rohner Bau GmbH is the implementation of new and renovation projects in the agricultural sector, particularly in the area of stables, garages, shelters and the adaptation of buildings to animal welfare standards.

Building Construction
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Rohrhelden Haus- und Kanaltechnik AG Logo

Rohrhelden Haus- und Kanaltechnik AG 

St. Gallen · Since 2024

The core activity of the company 'Rohrhelden' is sewer rehabilitation and pipe cleaning, including related services such as sewer TV inspection, pipe and sewer location and cleaning. The company also offers maintenance consulting for real estate and sanitary services.

Building Maintenance
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Roland Läuchli, Bauunternehmung Remigen Logo

Roland Läuchli, Bauunternehmung Remigen 

Remigen · Since 1995

The core activity of Läuchli Bauunternehmung is the provision of services in the field of building construction, particularly in the areas of: new construction, renovation, renovation, concrete drilling and milling, scaffolding, customer masonry, and forecourts and garden walls. The company thus offers a wide range of construction-related services and positions itself as a competent construction company in the Remigen area.

Building ConstructionBuilding MaintenanceScaffolding
View profile5(3)
Rolf Kunz AG Logo

Rolf Kunz AG 

Herzogenbuchsee · Since 2012

Rolf Kunz AG is a landscaping company that provides garden planning, garden design, new installations and garden maintenance. Its services also include planting plans, surface cleaning, irrigation technology, roof and facade greening, in‑house manufactory work and winter services, and the company states it emphasizes quality and sustainability.

Horticulture & Landscaping
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Rolf Meier Gartengestaltung Logo

Rolf Meier Gartengestaltung 

Uezwil · Since 1998

The core activity of Meier Rolf Gartengestaltung is the planning, creation and maintenance of gardens, including gardening, garden maintenance, garden redesign, garden planning, playground design, fence construction, lawn care and tree care.

Horticulture & Landscaping
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Rolf Zürcher AG Raum Bad Küche Logo

Rolf Zürcher AG Raum Bad Küche 

Pfäffikon Sz · Since 2014

The core activity of Rolf Zürcher AG is the planning, production and assembly of high-quality kitchens, bathrooms and interior fittings, including flooring and parquet, as well as the creation of individual living spaces through interior architecture and homestyling.

Architecture Firms
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roma architektur ag weinfelden Logo

roma architektur ag weinfelden 

Weinfelden · Since 2014

roma architektur ag weinfelden is an architectural firm that provides building surveys, planning, 3D modelling, CAD drawing and plotting services. Its offerings also include project development, construction management, renovation concepts, energy-efficiency assessments and expert reports.

Architecture Firms
View profile4.7(3)
Roman Weibel Gartenbau GmbH Logo

Roman Weibel Gartenbau GmbH 

Hünenberg · Since 2014

The core activity of Roman Weibel Gartenbau GmbH is the planning, design, maintenance and upkeep of gardens, including the construction and redesign of garden facilities.

Horticulture & Landscaping
View profile5(3)
ro.ma. röösli & maeder GmbH Logo

ro.ma. röösli & maeder GmbH 

Lucerne · Since 2002

The core activity of the company "ro.ma. roeoesli & maeder gmbh" is architecture. The company provides services in the fields of architecture, construction and planning, and is involved in the planning and realization of construction projects.

Architecture Firms
View profile4.7(3)
Romo Edelstahlbau AG Logo

Romo Edelstahlbau AG 

Herbligen · Since 2013

The core activity of Romo Edelstahlbau AG encompasses pipeline and plant construction, particularly for the water, wastewater, chemical and food industries, as well as the manufacture of stainless steel railings and T-drill outlets.

Civil Engineering
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Ronner Architektur + Bauleitung GmbH Logo

Ronner Architektur + Bauleitung GmbH 

Kaltbrunn · Since 2006

The core activity of Ronner Architektur+Bauleitung GmbH is the planning and execution of architectural and construction projects, particularly for new and renovation projects of single-family homes, multi-family homes, agricultural zone buildings, industrial buildings, public buildings, and building renovations. This includes services such as consulting, cost estimation, construction supervision, and execution.

Architecture Firms
View profile3.7(3)
Rosafio Giovanni Logo

Rosafio Giovanni 

Altendorf · Since 2002

The core activity of the company Rosafio Gartenbau is horticulture.

Horticulture & Landscaping
View profile5(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.