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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,816 companies indexed · Last updated: today
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386 companies found

Keller Bauunternehmung AG Logo

Keller Bauunternehmung AG 

Rheineck · Since 1997

The core activity of Keller Bauunternehmung AG encompasses the execution of construction projects in the following areas: * Building construction (residential buildings, industrial halls, hotels, conversions, renovations) * Civil engineering (excavation work, pipeline construction, sewage systems, retaining walls, forecourts) * Demolition (demolition excavators, concrete demolition, recycling) * Mobile crane work (with various mobile cranes up to 220 tons of lifting capacity) The company thus offers a wide range of construction services and is capable of carrying out complex construction projects from planning to completion.

Building ConstructionCivil Engineering
View profile4.8(4)
RLC Architekten AG Rheineck Logo

RLC Architekten AG Rheineck 

Rheineck · Since 1981

RLC Architekten AG Rheineck provides architectural and project development services, including general planning, digital design (BIM) and project management for residential, industrial, office and leisure buildings.

Architecture Firms
View profile5(4)
RLC Immoprojekt AG Logo

RLC Immoprojekt AG 

Rheineck · Since 2009

RLC Immoprojekt AG provides architectural and project development services, including general planning, project management, digital design (BIM) and sustainability consulting. The firm plans and supports projects for residential, industrial and office buildings as well as educational and healthcare facilities from concept to delivery.

Real Estate Project Development
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RLC Invest AG Logo

RLC Invest AG 

Rheineck · Since 1998

Real Estate Brokerage
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AS Trockenbau + Montage AG Logo

AS Trockenbau + Montage AG 

Rheineck · Since 2014

The core activity of Clean Lines AG is the provision of services in the areas of cleaning, facility management and infrastructure. Specifically, this includes: Facility Service: The maintenance and upkeep of buildings and facilities. Cleaning Service: The cleaning of buildings, rooms and surfaces. Infrastructure Service: The maintenance and upkeep of infrastructure facilities such as roads, paths and squares. The company thus offers a comprehensive range of services aimed at keeping customers' infrastructure and buildings in a clean and functional condition.

Facility Management & Cleaning
View profile5(3)
Galerie Wilmsen GmbH Logo

Galerie Wilmsen GmbH 

Rheineck · Since 2015

The core activity of Galerie Wilmsen is the trade in modern art, particularly the sale and purchase of artworks by internationally renowned and lesser-known artists. This also includes organizing exhibitions and advising clients on the selection and purchase of artworks.

Art & Antique Trade
View profile4.7(3)
Roland Baumgartner AG Logo

Roland Baumgartner AG 

Rheineck · Since 1982

The core activity of Roland Baumgartner AG is surface cleaning, particularly in the areas of: * Road cleaning (high-pressure cleaning of road surfaces) * Special cleaning (cleaning of special surfaces and areas) * Sewer cleaning (flushing, suction, milling, cleaning, inspecting and rehabilitating sewer systems) * Disposal (environmentally friendly disposal of waste materials) The company offers these services to various customers, including municipalities, road maintenance companies, industrial and commercial enterprises, as well as private households.

Waste Management Industry
View profile3.7(3)
Bohrtech AG Logo

Bohrtech AG 

Rheineck · Since 1987

The core activity of bohrtech ag is the provision of services in the field of concrete drilling, cutting and demolition, in particular: * Drilling and breakthroughs in high-rise and underground construction buildings (concrete, rubble stone, brick etc.) * Core drilling with diameters from 20mm to 800mm for pipe passages, ventilation, recesses etc. * Concrete cutting for rectangular breakthroughs, such as doors, windows or balcony demolitions, up to a depth of 50 cm.

Civil Engineering
View profile5(2)
Creativ Hair Style Mainardi Logo

Creativ Hair Style Mainardi 

Rheineck · Since 2008

The core activity of Creative Hairstyle is the provision of services in the hairdressing and hairstyling industry. Specifically, this includes: haircuts, hair coloring, styling, type consulting, and dyeing of eyelashes and eyebrows. The company operates a hair salon in Rheineck, where customers can receive individual advice and services.

Hair Salons
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Expert Humbel AG Logo

Expert Humbel AG 

Rheineck · Since 2000

Expert Humbel AG provides security and multimedia solutions, including alarm systems, video surveillance, fire detection systems, access control and building automation. The company offers consulting, system planning, installation and ongoing service.

Retail - Electronic Devices
View profile4.5(2)
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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.