ranQ
ranQ
ranQ
DirectoryIndustriesPlacesKnowledgeComparisonsSoon
Sign inCheck visibility
ranQHSG Startup LabelRecognised by the
HSG Startup Label

The first Swiss company directory, built to boost AI visibility.

Product
  • Pricing
  • Directory
  • Industries
Company
  • About
  • Contact
  • Legal
© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,089 companies indexed · Last updated: today
DirectoryConstruction & Architecture

Construction & Architecture

Filters
IndustryConstruction & Architecture
Search results

Matching companies

48'330 companies found

Odermatt Gerüstbau AG Logo

Odermatt Gerüstbau AG 

Kriens · Since 2019

Odermatt Gerüstbau AG provides scaffolding services, including erection of site-specific scaffolds for facade and roof work and the construction of load-bearing scaffolds for bridges and special structures. The company plans statically calibrated scaffold systems and carries out installations for construction projects.

Scaffolding
View profile5(3)
Odermatt Gerüstbau AG Logo

Odermatt Gerüstbau AG 

Dallenwil · Since 2010

Odermatt Gerüstbau AG provides scaffolding solutions for facade and roof work and constructs statically designed load-bearing scaffolds, for example for bridge projects. Services include planning, assembly and dismantling of scaffolds as well as project-specific adaptations.

Scaffolding
View profile5(3)
Oeko-Isol AG Logo

Oeko-Isol AG 

Tafers · Since 1989

The core activity of Oeko-Isol AG involves carrying out carpentry work, particularly in the areas of renovation, refurbishment and insulation, using materials and concepts that are beneficial to the health of occupants and the environment. This includes: interior finishing, insulation, craftsmanship in monument preservation, and new construction. The company also offers specific services such as floor laying, staircase construction and the creation of custom-built cabinets.

Interior ConstructionTimber Construction & Carpentry
View profile5(3)
Oestreich & Schmid GmbH Logo

Oestreich & Schmid GmbH 

St. Gallen · Since 2000

The core activity of Oestreich + Schmid is the planning and realization of architectural projects, particularly in the area of residential and commercial buildings, schools, sports halls, community centers and other public buildings. The company provides services as architects, including planning, design and project management.

Architecture Firms
View profile5(3)
OKI Japangarten GmbH Logo

OKI Japangarten GmbH 

Grenchen · Since 2013

The core activity of OKI Japangarten GmbH is the planning, design and realization of Japanese-style gardens in Switzerland, including the construction of traditional wooden buildings such as tea houses and temples.

Horticulture & Landscaping
View profile5(3)
Oliv Brunner Volk Architekten GmbH Logo

Oliv Brunner Volk Architekten GmbH 

Zurich · Since 2011

Oliv Brunner Volk Architekten GmbH is an architectural firm offering design services and project management for new construction, renovations, extensions and conversions. The firm's website presents a portfolio including residential buildings, care homes, schools, civic buildings and police stations.

Architecture Firms
View profile5(3)
Oliveira Sàrl Logo

Oliveira Sàrl 

Tramelan · Since 2012

The core activity of Oliveira Sàrl encompasses the execution of works in the following areas: * Masonry (e.g. rural constructions, natural stone walls, drilling) * Reinforced concrete (e.g. family homes, pools and basins, stairs and ramps) * Renovation (e.g. houses, farms, historic monuments) * Tiling (e.g. floors and walls, Italian showers, bathrooms) The company thus offers a wide range of services in the fields of construction and renovation.

Building MaintenanceMasonry Work
View profile4.7(3)
Olivo Gartenpflege und Gestaltung GmbH Logo

Olivo Gartenpflege und Gestaltung GmbH 

Steinhausen · Since 2020

The core activity of Olivo Gartenpflege und Gestaltung GmbH is the provision of services in the field of garden maintenance and design, including landscaping.

Horticulture & Landscaping
View profile5(3)
Onen GmbH Logo

Onen GmbH 

Niederbüren · Since 2022

Onen GmbH provides renovation and refurbishment services, including kitchen, bathroom and window renovations, together with technical maintenance and comprehensive project coordination.

Building Maintenance
View profile4.3(3)
Oppenheim Architecture + Design Europe LLC Logo

Oppenheim Architecture + Design Europe LLC 

Muttenz · Since 2009

The company's core activity is the architecture and design of buildings and projects, including residential, commercial and industrial buildings, resorts, museums and other facilities. The company offers services such as design, planning, project management and technical consulting and has branches in various countries, including the USA, Switzerland and Albania.

Architecture Firms
View profile5(3)
Oromano AG Logo

Oromano AG 

Adliswil · Since 2011

The core activity of OROMANO AG is bespoke wall design, combining solid craftsmanship with artistic techniques to create unique and individual wall designs. This includes the application of various techniques such as calligraphy, relief modeling, processing of cements, lacquers and the application of gold, silver and bronze leaf on textures. The company offers consulting and execution of wall designs for architects, interior architects, designers and builders.

Architecture FirmsGlass, Ceramics, Stone & Construction Materials Industry
View profile4.7(3)
Oslo Nord AG Logo

Oslo Nord AG 

Münchenstein · Since 2006

Building ConstructionGeneral Contractors
View profile3.7(3)
Osmonaj Echafaudages Sàrl Logo

Osmonaj Echafaudages Sàrl 

Aigle · Since 2018

Osmonaj Echafaudages Sàrl provides rental, assembly and dismantling services for scaffolding, including fixed scaffolds, mobile scaffolds and rolling-bridge systems. The company serves both private and professional clients.

Scaffolding
View profile5(3)
Ossig Renovaplan AG Logo

Ossig Renovaplan AG 

Derendingen · Since 2018

Ossig Renovaplan AG provides integrated financing, architectural and construction services for new builds and renovation projects. Acting as a general contractor, the company handles project development, permit submissions, construction management and cost control, and coordinates execution trades such as carpentry, roofing, joinery, flooring, sanitary installations, painting, plastering and masonry.

General Contractors
View profile5(3)
Outsite GmbH Logo

Outsite GmbH 

Gelterkinden · Since 2021

The core activity of Outsite GmbH is the planning and realization of gardens, including garden planning, garden construction and green space maintenance. The company offers services such as creating garden plans, implementing garden projects and maintaining green areas.

Horticulture & Landscaping
View profile5(3)
Oxalis architectes paysagistes associés Sàrl Logo

Oxalis architectes paysagistes associés Sàrl 

Carouge Ge · Since 1997

OXALIS is a landscape architecture firm specializing in the planning and design of public and private spaces. The company's core activity includes the development of landscape and garden projects, taking into account sustainability and environmental protection, as well as the integration of art and nature. The company also offers services in the fields of urban planning, architecture, and infographics.

Architecture Firms
View profile5(3)
P2L ARCHITECTES Sàrl Logo

P2L ARCHITECTES Sàrl 

Les Acacias · Since 2014

The company's core activity is the planning and realization of construction projects, particularly in the field of residential construction, as well as the execution of architectural competitions and the transformation of existing buildings.

Architecture Firms
View profile5(3)
PAR architecture Sàrl Logo

PAR architecture Sàrl 

Geneva · Since 2020

PAR architecture Sàrl is an architectural studio offering design and project development services, including competition entries, residential and educational buildings, renovations and interior fit-outs.

Architecture Firms
View profile5(3)
Parpan Bau AG Logo

Parpan Bau AG 

Lenzerheide/Lai · Since 2017

Parpan Bau AG provides construction services in building construction, civil engineering and natural-construction works. The company executes residential and commercial building projects, excavation, sewer and utility installations, timber retaining structures, renovation and customer-service works, and supplies scaffolding in cooperation with Luzi Gerüste AG.

Building Construction
View profile5(3)
Parpan Paulin AG Logo

Parpan Paulin AG 

Valbella · Since 2018

Parpan Paulin AG provides transport services, sewer maintenance and snow removal, together with related specialist services. Offerings include construction logistics, heavy and special transports, truck-mounted cranes and container solutions, suction and flushing vehicles, camera-based sewer inspections (Kanal‑TV) and water treatment/recycling for sewer operations.

Specialized Construction Activities
View profile5(3)
LeadhubOutbound Leads by COHAGA

Looking for direct email addresses and phone numbers?

Leadhub delivers verified contact details and decision-makers from over 750,000 Swiss companies — management, procurement, marketing, HR.

Discover Leadhub
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
102050
  • 1
  • More pages
  • 427
  • 428
  • 429
  • 430
  • More pages
  • 500
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.