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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint744,173 companies indexed · Last updated: today
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7'410 companies found

Zehnder General-Bau AG Logo

Zehnder General-Bau AG 

Winterthur · Since 1982

Zehnder General-Bau AG is a construction company and general contractor providing planning and execution services, including consulting, permit submissions, cost estimation, detailed planning and construction management. Services cover new construction, conversions, renovations, energy-related refurbishments, turnkey projects and timber construction.

General Contractors
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Zehnder & Kälin AG Logo

Zehnder & Kälin AG 

Winterthur · Since 2004

The core activity of zehnder & kälin ag is the provision of services in the field of building physics and acoustics. This includes in particular: * Noise protection: Assessment of external noise situations, preparation of noise reports and clarification of permit feasibility * Sound insulation: Evidence according to SIA 181, sound insulation reports and expert opinions, building acoustic measurements * Room acoustics: Ensuring adequate room acoustics and speech intelligibility in indoor spaces, calculation and dimensioning of reverberation times * Building physics: Evidence for thermal, sound and moisture protection, condition analyses, expert opinions and renovation concepts for building renovations * Energy efficiency: Evidence for Minergie, -P, -A and -Eco as well as GEAKplus, summer heat protection according to SIA 180 The company offers these services for various construction projects, such as new buildings, renovations and conversions, and works with architects, engineers and builders in the process.

Technical Consulting & Engineering
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Zeitzeichen, Winterthur - Stiftung zur Erhaltung lokaler Kulturgüter Logo

Zeitzeichen, Winterthur - Stiftung zur Erhaltung lokaler Kulturgüter 

Winterthur · Since 2004

The core activity of the company 'Zeitzeichen, Winterthur' consists of collecting, preserving and conveying everyday objects that serve as witnesses to everyday life and local cultural assets. In doing so, the company also supports and relieves individuals when clearing houses or apartments by collecting seemingly worthless finds and conveying them to suitable archives, collections and museums.

Cultural & Educational Organizations
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Zentris AG Logo

Zentris AG 

Winterthur · Since 2007

The core activity of Zentris AG is to support children and adolescents through the product "Kinder-Cash" (a piggy bank and accompanying materials) in imparting financial education and important human qualities such as planning, organization, and self-discipline. The company distributes its products to parents and schools and also offers teaching materials and resources for classroom use.

Retail - Toys & Baby Products
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Zentrum Eule GmbH Logo

Zentrum Eule GmbH 

Winterthur · Since 2020

The Eule Centre is a state-recognized private school specializing in individual support for children and adolescents. The company's core activity is to offer a combined teaching approach, where teachers at school and parents at home jointly support children and adolescents. The teaching includes both classroom hours at school and individual projects at home, which are accompanied and documented by parents and teachers together.

Schools
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Zentrum für Bewusstseinsentwicklung GmbH Logo

Zentrum für Bewusstseinsentwicklung GmbH 

Winterthur · Since 2022

The company offers services in the field of consciousness development, meditation courses, shamanism, hypnosis and trauma therapy. It also conducts workshops and courses on topics such as mindfulness meditation, chakra meditation and morphic field.

Breathwork, Meditation & Yoga Centers
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Zentrum für Ernährungsmedizin Winterthur GmbH Logo

Zentrum für Ernährungsmedizin Winterthur GmbH 

Winterthur · Since 2013

The core activity of Zermed Zentrum für Ernährungsmedizin Winterthur GmbH is nutritional counseling and therapy, particularly in the areas of weight management, obesity, metabolic medicine, gestational diabetes, and food intolerance. The company offers individual consultations and therapies provided by qualified nutritionists and scientists to support patients in improving their eating habits, weight, and overall health in the long term.

Non-Medical Healthcare Professions
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Zentrum für Urologie Lindberg AG Logo

Zentrum für Urologie Lindberg AG 

Winterthur · Since 2022

The company is a medical center specializing in the treatment of urological diseases. The core activity includes the diagnosis, treatment and surgical care of patients with urological problems, including the treatment of urological cancers. The center also offers a 24-hour emergency service and works closely with other specialist physicians and clinics to ensure comprehensive patient care.

Other Specialist Clinics
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zero Grafikstudio, C. Rohr Logo

zero Grafikstudio, C. Rohr 

Winterthur · Since 2023

The core activity of ze:ro Grafikstudio is the creation of creative and strategically effective design solutions, particularly in the areas of graphic design, branding, editorial design, packaging design and illustration. The company offers services such as the creation of brand images, layouts, editorials and packaging designs, and supports small and medium-sized enterprises in the development of their visual identity.

Advertising Agencies
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Ziltener & Partner Gartenbau AG Logo

Ziltener & Partner Gartenbau AG 

Winterthur · Since 1998

The core activity of Ziltener & Partner Gartenbau AG is the provision of services in the field of gardening and garden maintenance, including: maintenance work (care of gardens, surroundings, parks and commercial areas), new installations (garden new installations for single and multi-family houses), winter services (snow removal on private properties and company premises), plantings (new plantings, redesigns, summer flowers, lawns and lawn renovation) and squares and paving (construction of paths and squares with bonded stone or plate coverings, paving or chaussées). The company offers these services to both private individuals and business customers in the Winterthur area.

Horticulture & Landscaping
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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.