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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,816 companies indexed · Last updated: today
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1'650 companies found

44ai AG Logo

44ai AG 

Olten · Since 2024

The core activity of 44ai AG is the development and implementation of artificial intelligence (AI)-based solutions for the healthcare industry, particularly in the area of data processing and organization. The company offers a system that converts various types of health data (e.g. audio, medical images, text reports) into a structured format, thereby facilitating access to relevant data. This system aims to optimize workflows in healthcare facilities and reduce the administrative burden on medical personnel.

Software Development
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AARCHITEKTEN GmbH Logo

AARCHITEKTEN GmbH 

Olten · Since 2016

The core activity of AARCHITEKTEN GMBH is the provision of architectural and interior design services, including planning, design and implementation of construction projects, such as renovations and new builds of residential and holiday homes.

Architecture Firms
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Aare Energie AG (a.en) Logo

Aare Energie AG (a.en) 

Olten · Since 2002

Aare Energie AG (a.en) is a regional energy utility supplying electricity, gas, heat and water. The company manages the operational activities of the municipal utility Städtische Betriebe Olten (sbo) and provides network operation, production and storage services as well as mobility, energy-efficiency and photovoltaic solutions.

Energy Suppliers
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Aare Limmat Elektro AG Logo

Aare Limmat Elektro AG 

Olten · Since 2017

The company provides services in the field of construction and real estate development, particularly in the areas of new construction, renovation, refurbishment and tenant fit-out. It also supports local projects and events through sponsorship and pro-bono services.

Electrical Planning & Installation
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Aare-Reuss Immobilien Rudin Logo

Aare-Reuss Immobilien Rudin 

Olten · Since 2024

The core activity of Aare-Reuss Immobilien Rudin is real estate fiduciary services, including real estate valuation, rental, sales, consulting, project and portfolio management.

Real Estate Brokerage
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Aare-Tessin AG für Elektrizität (Atel) Logo

Aare-Tessin AG für Elektrizität (Atel) 

Olten · Since 2009

Aare-Tessin AG für Elektrizität (Atel) is an energy utility that supplies electricity, gas, heat and water and operates distribution network services. It also provides energy production and storage services (including photovoltaic systems), metering and connection services, energy advice, mobility solutions and services for third parties.

Energy Suppliers
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Aare Versorgungs AG (AVAG) Logo

Aare Versorgungs AG (AVAG) 

Olten · Since 1999

Aare Versorgungs AG (AVAG) is a regional energy supplier providing services in electricity, gas, heat and water. The company carries out operational management of a municipal utility and offers services to third parties, including network operation, energy production (including photovoltaic systems), billing, energy advisory and mobility solutions such as charging infrastructure and refuelling stations.

Energy Suppliers
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Abag Anlage und Bau AG Logo

Abag Anlage und Bau AG 

Olten · Since 1962

Property Management
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ABYLLE Software Technologies GmbH Logo

ABYLLE Software Technologies GmbH 

Olten · Since 2021

The company offers services in the field of digital transformation and engineering, particularly in the automotive, manufacturing, e-commerce, and banking and finance industries. The core activities include: Engineering Services, including Digital Transformation, Revolutionizing Connectivity, Data & Analytics, Experience (UI/UX), Quality Engineering, and Precision Crafting; Technology expertise in SAP S/4 Hana, Salesforce, Microsoft, Open Source, PHP, Automation, Internet of Things, and Mobile Application; and Quality Engineering (Services) and Intelligence Engineering. The company thus offers a wide range of services in the field of digital transformation and engineering, with a focus on the above-mentioned industries and technologies.

Technical Consulting & Engineering
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addvalue.ch gmbh Logo

addvalue.ch gmbh 

Olten · Since 2019

addvalue.ch gmbh provides interim management and mediation services, supports merger and acquisition processes, and offers services for real-estate concepts. Projects are led by Rolf H. Schmid, who draws on a network of specialists as needed.

Administrative Services
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addvalue holding ag Logo

addvalue holding ag 

Olten · Since 2017

addvalue holding ag is a service firm that delivers administrative value and supports companies in corporate transactions. Services include interim management and mediation, M&A support (valuations, financial due diligence, negotiations) and advisory on real estate projects, with engagements led by Rolf H. Schmid.

Holding Companies
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adlatus Logo

adlatus 

Olten · Since 2007

The company adlatus offers business consulting services, particularly for small and medium-sized enterprises (SMEs). The core activities include: Interim Management: adlatus provides experienced managers who can support companies on a temporary basis to fill personnel gaps or overcome specific challenges. Business Consulting: The company offers consulting services in various areas such as finance, taxes, marketing, sales, and succession planning. Coaching: adlatus provides coaching services to support companies in developing and implementing strategies. Startup Consulting: The company offers specific consulting services for startups to support them in overcoming challenges and developing strategies. Overall, adlatus focuses on providing experienced consultants and managers who can support companies in solving challenges and achieving their goals.

Fiduciary Offices
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ADMEDICO Augenzentrum AG Logo

ADMEDICO Augenzentrum AG 

Olten · Since 2004

ADMEDICO Augenzentrum AG is an ophthalmic surgical centre providing a broad range of eye treatments and operations. Clinical services include cataract, glaucoma and corneal surgery, orbital and lacrimal procedures, intravitreal injections, orthoptic assessment and general ophthalmology.

Ophthalmology Clinics
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ADMEDICO Holding AG Logo

ADMEDICO Holding AG 

Olten · Since 2015

ADMEDICO Holding AG is an eye centre providing ophthalmic diagnostics, non-surgical treatments and surgical procedures. The centre's team includes ophthalmologists, orthoptists, an optometrist and medical assistants, offering vision testing, intraocular pressure measurement, orthoptic assessments and surgical services such as cataract, glaucoma and corneal procedures, eyelid and lacrimal/orbital surgery and intravitreal injections.

Holding Companies
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a.en Control AG Logo

a.en Control AG 

Olten · Since 2019

a.en Control AG carries out acceptance inspections, periodic checks and spot inspections of electrical installations and issues safety certificates when installations meet requirements. Services include inspections for ownership or tenant changes, checks of street lighting, cable distribution cabinets, transformer stations and photovoltaic systems, and safety advice.

Energy Industry
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agA Architekturgemeinschaft Winz & Partner GmbH Logo

agA Architekturgemeinschaft Winz & Partner GmbH 

Olten · Since 1997

The company's core activity is the provision of architectural services, in particular the planning and realization of construction projects, including renovations and conversions of residential and office buildings.

Architecture Firms
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agilist. genossenschaft Logo

agilist. genossenschaft 

Olten · Since 2024

The company's core activity is advising and supporting companies and organizations in their digital transformation, particularly through the implementation of agile methods and process improvements. The core activities include: Agile Coaching and Training, Process Improvement and Optimization, Innovation Management and Consulting, IT Architecture and Consulting, Change Management and Support, and Leadership and Team Development. The company supports customers in introducing agile methods, eliminating inefficiencies, and maximizing the potential of their teams.

Management Consulting
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AJH GmbH Logo

AJH GmbH 

Olten · Since 2018

AJH GmbH operates the restaurant Ristorante Olivo and offers an Italian menu featuring pizzas, pinsa, pasta, starters, salads and desserts. The website shows the menu and includes a link for online ordering.

Restaurants
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Alpiq EcoPower AG Logo

Alpiq EcoPower AG 

Olten · Since 2010

Energy Suppliers
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Alpiq EcoPower Schweiz AG Logo

Alpiq EcoPower Schweiz AG 

Olten · Since 2006

Energy Suppliers
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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.