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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
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Abisz Kommunikation Peter Frehner Ernst Logo

Abisz Kommunikation Peter Frehner Ernst 

Basel · Since 1995

Abisz Kommunikation Peter Frehner Ernst is a communications partner offering integrated corporate communications and corporate design services. Services include communication strategy and concept development as well as implementation of events, conferences, annual reports and web presentations.

Public Relations Consulting
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A. + B. Rechsteiner AG Logo

A. + B. Rechsteiner AG 

Basel · Since 2010

The core activity of A. + B. Rechsteiner AG is the provision of services in the field of chimney sweeping, including fire protection, wood combustion control, oil and gas combustion control, as well as the cleaning and maintenance of ovens, heating systems and chimneys.

Facility Management & Cleaning
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Ackermann Architektur BSA SIA AG Logo

Ackermann Architektur BSA SIA AG 

Basel · Since 1972

The core activity of Ackermann Architekt BSA SIA AG is the planning and realization of architectural projects, particularly in the area of residential buildings, retirement centers, schools and other public buildings. The company offers services such as architectural planning, project development and construction management and is active in Switzerland.

Architecture Firms
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Adibilis GmbH Logo

Adibilis GmbH 

Basel · Since 2022

The core activity of Adibilis is the provision of services in the field of software development, consulting and IT consulting, particularly: Software development (web applications, platform and SaaS solutions, mobile applications, interfaces, data migrations), Consulting (digitalization, legacy software, process optimization, project management, IT strategy, harmonization of IT environments), UX Research & Design (User Interface Design, Usability Testing, quantitative and qualitative research, user studies), Hosting (24/7 monitoring & notification, SLA for uptime of up to 99.9%, automatic backups, regular maintenance and updates of infrastructure). The company positions itself as a partner for digitalization with a focus on quality and sustainability.

Software Development
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Advans IT Solutions GmbH Logo

Advans IT Solutions GmbH 

Basel · Since 2019

The core activity of Advans IT Solutions is to provide IT services and solutions to companies, particularly in the life sciences and healthcare sectors. This includes the development and implementation of IT systems, maintenance and operation of software and hardware, conception and implementation of IT projects, training and consulting of customers, as well as the takeover of overall projects. The company supports its customers in optimizing their IT infrastructure, complying with quality standards, and ensuring patient safety, data integrity, and product quality.

IT Consulting & Services
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Gerhard Schobel Logo

Gerhard Schobel 

Basel · Since 1993

The company's core activity is coaching and training in the areas of personal development, leadership and communication, with a focus on: Personal Coaching, Personality Development, Spirituality in Everyday Life, Leadership Coaching, Communication and Negotiation, Life Planning and Time Management, and Qualification Interviews. The company also offers workshops and training for employees and teams, and supports the development of strategies and the implementation of goals.

Coaching & Personal Development
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AiOS Swiss GmbH Logo

AiOS Swiss GmbH 

Basel · Since 2019

The core activity of AiOS Swiss GmbH is the provision of security services, including: security guarding and security personnel, event and public order services, construction site logistics and security, traffic management for events or construction sites, and rail security measures for private railways. In addition, the company also offers other services, such as: technology and workshop (including vehicle repair shop), cleaning, and limousine service. However, the company's core activity remains in the field of security services.

Security Services
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Akkurat Sozial- und Finanzassistenz für Betagte AG Logo

Akkurat Sozial- und Finanzassistenz für Betagte AG 

Basel · Since 2009

The core activity of Akkurat Sozial- und Finanzassistenz für Betagte AG is to provide services in the area of social and financial support for older people. This includes, among other things: Financial organization, such as managing monthly payment transactions and preparing tax returns; Administrative support, such as assisting with the creation of wills and arranging notaries; Social support, such as organizing official visits, finding suitable forms of housing and helping with the transition to a care home; Consulting and support in financial and social matters, such as applying for supplementary benefits and health insurance premium reductions. The company thus offers comprehensive support for older people to make it easier for them to manage their daily affairs.

Fiduciary Offices
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ALBRECHT + RITZMANN GmbH Logo

ALBRECHT + RITZMANN GmbH 

Basel · Since 2012

The core activity of Albrecht + Ritzmann is the planning and execution of renovation and new construction projects, the renovation of single-family and multi-family homes, interior design, the renovation of historic buildings, as well as the development of restoration concepts for historic buildings. The company thus offers comprehensive services in the field of architecture and construction, with a special focus on the renovation and restoration of historic buildings.

Building Construction
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Alteno AG Logo

Alteno AG 

Basel · Since 1987

The core activity of Alteno AG encompasses the planning, consulting and implementation of sustainable building technology and solar energy solutions. This includes in particular: planning of heating systems (heat pumps, wood heating systems, district heating); planning of photovoltaic systems with battery storage and e-mobility; energy consulting for large consumers, gastronomy, bakeries and commerce; load management and operational optimization; residential ventilation and ventilation systems for industry and commerce; ENAW target agreements for large consumers and energy operational optimization; strategic property owner consulting and concept development; expert opinions and reports for building energy systems. The company thus offers comprehensive services in the field of sustainable energy and building technology.

Solar & Photovoltaics
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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.