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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,816 companies indexed · Last updated: today
DirectoryConstruction & Project Management

Construction & Project Management

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IndustryConstruction & ArchitectureIndustryConstruction & Project Management
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Matching companies

3'043 companies found

Iseli + Eng GmbH Logo

Iseli + Eng GmbH 

Heimberg · Since 1987

Iseli + Eng GmbH is a specialist company for terrace roofs, pergolas, conservatories and sun/wind protection, and also supplies garden furniture, whirlpools and outdoor kitchens. The firm provides planning, visualization, installation, customer consultation and after‑sales service; its subsidiary Pure Blue GmbH offers mobile reverse‑osmosis cleaning for conservatories.

Construction & Project Management
View profile4.8(78)
Iseli Services GmbH Logo

Iseli Services GmbH 

Heimberg · Since 2015

Iseli Services GmbH is a specialist company for terrace roofing, shading and garden furnishings. The company advises, designs, visualises and installs products such as pergolas, conservatories, sun‑protection systems, garden furniture, whirlpools and outdoor kitchens, and offers accessories and after‑sales service.

Construction & Project Management
View profile4.8(78)
ARIBAG AG Logo

ARIBAG AG 

Buttisholz · Since 2021

ARIBAG AG is a construction company that provides demolition (rückbau), civil engineering (tiefbau) and building construction (hochbau) services, along with circular-economy and real-estate services. The website also describes activities in contamination remediation, vocational training and integrated construction services.

Construction & Project Management
View profile4.3(54)
EFFIBAT SA Logo

EFFIBAT SA 

Meyrin · Since 2012

Effibat SA is a Swiss company specializing in the planning, implementation and management of construction projects. Its core activity encompasses the overall performance of construction projects, from project development to calculation and optimization, through to execution and handover. The company also offers specific services such as the creation of tenders, support in decision-making and project monitoring. Effibat SA positions itself as a general contractor that accompanies and supports its customers throughout all phases of a construction project.

Construction & Project Management
View profile4.2(51)
Estermann AG Logo

Estermann AG 

Geuensee · Since 2004

Estermann AG offers services in real estate development, general contracting and plastering. The company manages projects from development, planning and construction through to handover, delivering residential, commercial and investment buildings as well as façade and interior finishing works.

Building ConstructionConstruction & Project Management
View profile4.5(47)
Leuthard Projekt & Baumanagement AG Logo

Leuthard Projekt & Baumanagement AG 

Merenschwand · Since 2014

Leuthard Baumanagement AG is a construction and real estate services company offering property project development and marketing, integrated developments and construction services including building, civil, road and façade work. The company applies BIM and digital tools (cloud-based project spaces, drones, advanced surveying) for model-based planning and execution.

Construction & Project ManagementGeneral Contractors
View profile4.3(45)
Schmid Bauunternehmung AG Buchrain, Zweigniederlassung Wiggertal Logo

Schmid Bauunternehmung AG Buchrain, Zweigniederlassung Wiggertal 

Altishofen · Since 2016

Schmid Bauunternehmung AG Buchrain, Zweigniederlassung Wiggertal carries out structural work including shell construction, turnkey new builds, renovations and restorations, and provides services in building construction, civil engineering, façade work, exposed concrete and masonry, as well as landscaping and building drying.

Construction & Project Management
View profile4.2(45)
B+S Invest AG Logo

B+S Invest AG 

Widnau · Since 2017

B+S Invest AG provides construction consulting, construction management and general contractor (total contractor) services, and works in project development, residential and commercial construction as well as renovations.

Construction & Project ManagementGeneral Contractors
View profile5(36)
Deck AG Logo

Deck AG 

Basel · Since 1963

Deck AG is a real estate company offering sales, property management, valuations, construction supervision (renovation) and advisory services for residential and investment properties.

Construction & Project Management
View profile2.3(36)
Altix AG Logo

Altix AG 

Winterthur · Since 2023

Altix AG provides comprehensive services for work at height, including fall‑protection systems and industrial rope access, as well as planning, installation and annual inspection of personal fall protection systems. The company also delivers safety training courses such as PSAgA basic and refresher courses, aerial platform operator training, load slinging and first aid.

Construction & Project Management
View profile4.9(35)
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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
102050
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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.
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