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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,805 companies indexed · Last updated: today
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1'650 companies found

TRIENERGY Solutions AG Logo

TRIENERGY Solutions AG 

Olten · Since 2023

The core activity of TRIENERGY Solutions AG is the wholesale trade of products and solutions for photovoltaic systems, including solar modules, inverters, mounting systems, PV storage systems and accessories. The company also offers energy management solutions and consulting services.

Solar & Photovoltaics
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Walter Jäggi GmbH Logo

Walter Jäggi GmbH 

Olten · Since 2001

Walter Jäggi GmbH is a trades company providing plastering, painting and drywall services. Its offerings include interior and exterior rendering, stucco work, suspended ceiling systems, lightweight partition walls, façade repairs, acoustic solutions and mould remediation.

Painting & Plastering
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Wärchlade für Olten und Umgebung Logo

Wärchlade für Olten und Umgebung 

Olten · Since 1991

The core activity of Wärchlade is to provide protected and adapted workplaces for people with illnesses or disabilities. These workplaces are located in two areas: a textile studio and a woodworking shop.

Institutions for People with Disabilities
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ABEWO GmbH Logo

ABEWO GmbH 

Olten · Since 1998

ABEWO is a total enterprise specialized in planning, realization and brokerage of real estate projects. The core activities include: The construction of residential buildings, including single-family, semi-detached and terraced houses as well as multi-family houses with rental and condominium apartments. The execution of renovation and conversion work on existing properties, both in the residential and commercial sectors. The brokerage of real estate and building plots. The planning and realization of new buildings, including the creation of standard houses. The coordination and supervision of construction projects as a general contractor. ABEWO thus offers a comprehensive range of services in the real estate and construction industry.

Architecture Firms
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AESCHLIMANN ENGINEERING AG Logo

AESCHLIMANN ENGINEERING AG 

Olten · Since 2012

AESCHLIMANN ENGINEERING AG is an engineering firm specializing in sanitary building-services planning, providing services such as sanitary system design, fire-protection planning, sewer and utility-line design, and sprinkler system planning.

Technical Consulting & Engineering
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Augenklinik Heuberger AG Logo

Augenklinik Heuberger AG 

Olten · Since 2000

Augenklinik Heuberger AG is an ophthalmology clinic providing diagnostic, medical and surgical treatment for eye conditions. Services include laser vision correction, cataract surgery, eyelid surgery, glaucoma treatment and procedures for anterior and posterior segments of the eye.

Hospitals & Clinics
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Baer Schriften AG Logo

Baer Schriften AG 

Olten · Since 1976

Baer Schriften AG is an advertising company that provides signage and digital printing services. The company delivers customized signage, digital prints and other related advertising services.

Printing Companies
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baer werbetechnik GmbH Logo

baer werbetechnik GmbH 

Olten · Since 2013

The core activity of Baer Werbetechnik GmbH is the creation of signage and digital prints for advertising purposes.

Advertising Agencies
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Baugeschäft Arnold Wullschleger AG Logo

Baugeschäft Arnold Wullschleger AG 

Olten · Since 1966

Baugeschäft Arnold Wullschleger AG carries out joinery and interior finishing work and supplies custom-made kitchens, doors, windows and bespoke joinery. Services include paneling, floor coverings, stairs and built-in furniture for renovations, conversions and new-build projects.

Building Maintenance
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Brahimi-Scheidegger GmbH Logo

Brahimi-Scheidegger GmbH 

Olten · Since 2019

The core activity of Brahimi-Scheidegger GmbH is the interior construction and renovation of buildings, particularly in the areas of drywall construction, plastering, painting, and wallpapering. The company also offers services such as base coat, finish coat, sanding, repairs, and insulation. It specializes in creating individual solutions for residential and commercial spaces, including the integration of historic elements into new architecture.

Interior Construction
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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.